| Daisuke Nakamura | Last modified date：2024.04.11 |
Associate Professor /
Applied Energy Engineering /
Department of Electrical Engineering /
Faculty of Information Science and Electrical Engineering
Papers
| 1. | M. Koba,T. Kikuchi,D. Nakamura,H. Ikenoue, Influence of flow rate and gas type with a novel nozzle capable of simultaneously gas flow and suction on weld quality in laser welding, SPIE, https://doi.org/10.1117/12.3001226, 12878, 128780F, 2024.03. |
| 2. | T. Kikuchi,R. Takabatake,K. Katayama,H. Ikenoue,D. Nakamura, Joint quality assessment by machine learning using characterized surface thermal radiation images of laser welding process, SPIE, https://doi.org/10.1117/12.3001226, 12878, 128780E, 2024.03. |
| 3. | Takuma Yasunami,Daisuke Nakamura,Keita Katayama,Yoshiaki Kakimoto,Toshifumi Kikuchi,Hiroshi Ikenoue, Laser doping mechanism of 4H-SiC by KrF excimer laser irradiation using SiNx thin films, Japanese Journal of Applied Physics, 10.35848/1347-4065/acb0d8, 62, SC, 1039, 2023.01. |
| 4. | R. Aoki,K. Katayama,D. Nakamura,H. Ikenoue,T. Sadoh, Excimer Laser Doping for PN Junction Formation with Extremely Low Thermal Budget, The 30th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2023, 159-160, 2023.07. |
| 5. | R. Koike,T. Kikuchi,K. Katayama,Y. Kakimoto,D. Nakamura,H. Ikenoue, Nanosecond time-resolved two-dimensional temperature estimation of nanosecond laser-irradiated silicon, Proc. SPIE, 10.1117/12.2648631, 12408, 124080J, 2023.03. |
| 6. | Yoshiaki Kakimoto,Keita Katayama,Takuma Yasunami,Tetsuya Goto,Daisuke Nakamura,Hiroshi Ikenoue, Excimer laser doping for 4H-SiC power device fabrication, Proc. SPIE, 10.1117/12.2651419, 12408, 124080M, 2023.03. |
| 7. | Takuma Yasunami,Daisuke Nakamura,Keita Katayama,Yoshiaki Kakimoto,Toshifumi Kikuchi,Hiroshi Ikenoue, Laser doping mechanism of 4H-SiC by KrF excimer laser irradiation using SiNx thin films, Japanese Journal of Applied Physics, 10.35848/1347-4065/acb0d8, 62, SC1039, 2023.01. |
| 8. | Toru Okatsugi,Keita Katayama,Yoshiaki Kakimoto,Daisuke Nakamura,Tetsuya Goto,Hiroshi Ikenoue, Electrical Characteristics of LTPS-TFTs Fabricated by ELA with Laser Intensity Distributions Controlled by Dot Array Masks, Proceedings of International Display Workshops, 10.36463/idw.2022.0284, 29, 284-286, 2022.12. |
| 9. | R. Koike,R. Suzuki,K. Katayama,M. Higashihata,H. Ikenoue,D. Nakamura , Formation dynamics of SiO2 nanoparticles produced by laser ablation in ambient gases, Applied Physics A: Materials Science and Processing, https://doi.org/10.1007/s00339-022-06114-7, 128, 971, 1-7, 2022.10. |
| 10. | Takeshi Tsuji,Shota Yamamoto,Shun Ikemoto,Hiromasa Hara,Motoki Ohta,Daisuke Nakamura , Efficient drilling of amorphous alloy foils using low-energy long pulses of a Nd:YAG laser, The International Journal of Advanced Manufacturing Technology, https://doi.org/10.1007/s00170-022-09042-1, 120, 4139-4146, 2022.03. |
| 11. | Fadzai Lesley Chawarambwa,Tika Erna Putri,Sung-Hwa Hwang,Pankaj Attri,Kunihiro Kamataki,Naho Itagaki,Kazunori Koga,Daisuke Nakamura,Masaharu Shiratani, Improved luminescence performance of Yb3+-Er3+-Zn2+: Y2O3 phosphor and its application to solar cells, Optical Materials, https://doi.org/10.1016/j.optmat.2021.111928, 123, 111928, 2022.01. |
| 12. | Fuminobu Hamano,Akira Mizutani,Kaname Imokawa,Daisuke Nakamura,Tetsuya Goto,Hiroshi Ikenoue, Improvement of the surface roughness of LTPS thin films with additional laser irradiation, Proceedings of the International Display Workshops, 27, 322-324, 2021.12. |
| 13. | Reiji Koike,Rio Suzuki,Keita Katayama,Mitsuhiro Higashihata,Hiroshi Ikenoue,Daisuke Nakamura, Observation of SiO2 Nanoparticle Formation via UV Pulsed Laser Ablation in a Background Gas, Journal of Laser Micro/Nanoengineering , 10.2961/jlmn.2021.03.2006, 16, 3, 185-188, 2021.12. |
| 14. | Anshu Sahu,Ashish Shukla,Daisuke Nakamura,Vipul Singh,I. A. Palani, Parametric investigation on Laser-Induced Forward Transfer of ZnO nanostructure on flexible PET sheet for optoelectronic application, Microelectronic Engineering, https://doi.org/10.1016/j.mee.2021.111569, 244-246, 111569, 2021.05. |
| 15. | Rio Suzuki,Reiji Koike,Keita Katayama,Mitsuhiro Higashihata,Hiroshi Ikenoue,Daisuke Nakamura, Fabrication of nanoparticles of oxide materials by UV pulsed laser ablation in gas phase, Proc.SPIE, doi.org/10.1117/12.2576843, 11674, 116741G, 2021.04. |
| 16. | Fadzai Lesley Chawarambwa,Tika Erna Putri,Kunihiro Kamataki,Masaharu Shiratani,Kazunari Koga,Naho Itagaki,Daisuke Nakamura, Synthesis of Yb3+/Ho3+ co-doped Y2O3 nanoparticles and its application to dye sensitized solar cells, Journal of Molecular Structure, 10.1016/j.molstruc.2020.129479, 1228, 15, 129479, 2021.03. |
| 17. | Tsubasa Fujimoto,Miki Kawamoto,Mitsuhiro Higashihata,Daisuke Nakamura,Hiroshi Ikenoue, Formation of twisted Au microstructures by optical vortex pulse irradiation, Proc.SPIE, doi.org/10.1117/12.2577106, 11674, 1167410, 2021.03. |
| 18. | Akira Mizutani,Fuminobu Hamano,Keita Katayama,Daisuke Nakamura,Tetsuya Goto,Hiroshi Ikenoue, Estimation of the mobility of low temperature polycrystalline silicon thin film transistors through deep learning, Proc.SPIE, doi.org/10.1117/12.2579492, 11673, 1167306, 2021.03. |
| 19. | Daisuke Nakamura,Ryohei Tasaki,Miki Kawamoto,Hiroki Oshima,Mitsuhiro Higashihata,Hiroshi Ikenoue,Toshitaka Wakayama,Atsushi Sunahara,Takeshi Higashiguchi, Silicon twisted cone structure produced by optical vortex pulse with structure evaluation by radiation hydrodynamic simulation, Scientific Reports, 10.1038/s41598-020-77323-4, 10, 20512, 2020.12. |
| 20. | K. Fabitha,Y. Wakiyama,H. Oshima,D. Nakamura,M. S. Ramachandra Rao, Realization of sharp visible WGM lasing from Sm3+ :ZnO micro-spheres fabricated by laser ablation technique, Journal of Physics D: Applied Physics, 10.1088/1361-6463/ab5730, 53, 135302, 2020.01. |
| 21. | Fuminobu Hamano,Akira Mizutani,Kaname Imokawa,Daisuke Nakamura,Tetsuya Goto,Hiroshi Ikenoue, Surface flattening of poly-Si thin films by laser annealing and electrical properties of LTPS-TFTs, Proc.SPIE, doi.org/10.1117/12.2544910, 11268, 1126810, 2020.01. |
| 22. | Emmanuel Paneerselvam,Toshifumi Kikuchi,Hiroshi Ikenoue,Nilesh J. Vasa,I. A. Palani,Mitsuhiro Higashihata,Daisuke Nakamura,M. S. Ramachandra Rao, Selective area laser-assisted doping of SiC thin films and blue light electroluminescence, Journal of Physics D: Applied Physics, 10.1088/1361-6463/ab3e97, 52, 48LT01, 2019.12. |
| 23. | Kaname Imokawa,Takayuki Kurashige,Akira Suwa,Daisuke Nakamura,Taizoh Sadoh,T. Goto,H. Ikenoue, Fabrication of CMOS Invertors in Si Thin-Film-Transistors by Laser Doping Using a Chemical Solution Coating, IEEE Journal of the Electron Devices Society, 10.1109/JEDS.2019.2956991, 8, 27-32, 2019.12. |
| 24. | K. Imokawa,T. Yamada,K. Saito,J. Gotoh,T. Goto,D. Nakamura,H. Ikenoue, Grain Growth Control with a Dot Mask in Selective Laser Annealing for Stable LTPS Thin Films Transistors Fabrication, the 2019 International Conference on Solid State Devices and Materials, 10.7567/SSDM.2019.G-2-02, G-2-02, 313-314, 2019.09. |
| 25. | Emmanuel Paneerselvam, Vinoth Kumar Lakshmi Narayanan, Nilesh J. Vasa, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, M. S. Ramachandra Rao, Laser Assisted Doping of Silicon Carbide Thin Films Grown by Pulsed Laser Deposition, Journal of Electronic Materials, 10.1007/s11664-019-07097-7, 48, 6, 3468-3478, 2019.06, Cubic silicon carbide (3C-SiC) films were grown by pulsed laser deposition (PLD) on magnesium oxide [MgO (100)] substrates at a substrate temperature of 800°C. Besides, p-type SiC was prepared by laser assisted doping of Al in the PLD grown intrinsic SiC film. The SiC phases, in the grown thin films, were confirmed by x-ray diffraction (XRD), Si–C bond structure is identified by Fourier-transform infrared spectroscopy spectrum analysis. Measurements based on the XRD and Raman scattering techniques confirmed improvement in crystallization of 3C-SiC thin films with the laser assisted doping. The studies on I–V characteristics by two probe technique, elemental analysis by energy dispersion spectrum, binding energy by x-ray photoelectron spectroscopy and carrier concentration by Hall effect, ensured Al doping in SiC thin film. From the UV–visible NIR spectroscopic analysis, the optical bandgap of the PLD grown 3C-SiC was obtained. Numerical analysis of temperature and carrier concentration distribution is simulated to understand the mechanism of laser assisted doping.. |
| 26. | Sho Kawagoe, Ryosuke Nakamura, Ryohei Tasaki, Hiroki Oshima, Mitsuhiro Higashihata, Daisuke Nakamura, Takashige Omatsu, Microfabrication of Au film using optical vortex beam, Journal of Laser Micro Nanoengineering, 10.2961/jlmn.2019.01.0006, 14, 1, 31-34, 2019.04, We fabricate Au microneedle structures by irradiating nanosecond optical vortex pulse, possessing orbital angular momentum (OAM), to Au thin film. Twisted microneedle associated with the handed-ness of optical vortex is formed. The partial liquid motion of the molten Au film and the OAM transfer effects play a role to establish a twisted Au microneedle. An Au microsphere on a twisted pillar is also achieved. Non-twisted structure is fabricated with picosecond optical vortex pulse irradiation due to unoptimized condition such as laser fluence, film thickness and unavoidable imperfections of the optical vortex.. |
| 27. | Shinichiro Ishikawa, Yukiyasu Yoshinaga, Daichi Kantake, Daisuke Nakamura, Noriko Yoshida, Toshio Hisatomi, Yasuhiro Ikeda, Tatsuro Ishibashi, Hiroshi Enaida, Development of a novel noninvasive system for measurement and imaging of the arterial phase oxygen density ratio in the retinal microcirculation, Graefe's Archive for Clinical and Experimental Ophthalmology, 10.1007/s00417-018-04211-z, 257, 3, 557-565, 2019.03, Purpose: This study was conducted in order to develop a novel noninvasive system for measurement and imaging of the arterial oxygen density ratio (ODR) in the retinal microcirculation. Methods: We developed a system composed of two digital cameras with two different filters, which were attached to a fundus camera capable of simultaneously obtaining two images. Actual measurements were performed on healthy volunteer eyes (n = 61). A new algorithm for ODR measurement and pixel-level imaging of erythrocytes was constructed from these data. The algorithm was based on the morphological closing operation and the line convergence index filter. For system calibration, we compared and verified the ODR values in arterioles and venules that were specified in advance for 56 eyes with reproducibility. In 10 additional volunteers, ODR measurements and imaging of the arterial phase in the retinal microcirculation corresponding to changes in oxygen saturation of the peripheral arteries at normal breathing and breath holding were performed. Results: Estimation of incident light to erythrocytes and pixel-level ODR calculation were achieved using the algorithm. The mean ODR values of arterioles and venules were 0.77 ± 0.060 and 1.02 ± 0.067, respectively. It was possible to separate these regions, calibrate at the pixel level, and estimate the arterial phase. In each of the 10 volunteers, changes in the arterial phase ODR corresponding to changes in oxygen saturation of the peripheral arteries were observed before and after breath holding on ODR images. The mean ODR in 10 volunteers was increased by breath holding (p |
| 28. | T. Kikuchi,K. Imokawa,A. Ikeda,D. Nakamura,T. Asano,H. Ikenoue, Low-temperature, high-concentration laser doping of 4H-SiC for low contact resistance, SPIE Photonics West 2019, 10.1117/12.2509191, 10905, 109050P, 2019.03. |
| 29. | Teppei Nakashima,Toshifumi Kikuchi,Kaname Imokawa,Daisuke Nakamura,Hiroshi Ikenoue, Synthesis of GeSn particles with high substitutional Sn concentration by low-pressure pulsed-laser-deposition, SPIE Photonics West 2019, 10.1117/12.2509179, 10907, 109070P, 2019.03. |
| 30. | Ryota Miyano,Toshifumi Kikuchi,Kaname Imokawa,Daisuke Nakamura,Hiroshi Ikenoue, Formation of nanoporous SiO2 films with super-low dielectric constant by F2 laser deposition, SPIE Photonics West 2019, 10.1117/12.2509176, 10907, 109070S, 2019.03. |
| 31. | Kaname Imokawa,Nozomu Tanaka,Akira Suwa,Daisuke Nakamura,Taizoh Sadoh,Tetsuya Goto,Hiroshi Ikenoue, Low-temperature and low-cost excimer laser doping for poly-Si thin-film transistor fabrication, SPIE Photonics West 2019, 10.1117/12.2509141, 10906, 109060J, 2019.03. |
| 32. | Nandini Patra, Siva Krishna Karuturi, Nilesh J. Vasa, Daisuke Nakamura, M. Higashihata, Vipul Singh, I. A. Palani, Influence of Ni, Ti and NiTi alloy nanoparticles on hydrothermally grown ZnO nanowires for photoluminescence enhancement, Journal of Alloys and Compounds, 10.1016/j.jallcom.2018.08.160, 770, 1119-1129, 2019.01, In this work, surface-plasmon mediated enhanced photoluminescence emission has been investigated on Ni, Ti, and NiTi coated ZnO nanowires (NWs). ZnO NWs have been synthesized using a facile hydrothermal process, where NWs are coated with three different metals (Ni, Ti, and NiTi) using sputter deposition technique. It has been found that there is a significant improvement in near band edge emission (NBE) and passivation in deep level emission (DLE) in such metal embedded ZnO NWs and these emission properties can be tuned as we change the metal. Notably, we have achieved the highest enhancement of ∼6 times in NBE and best suppression of ∼15 times) in DLE by alloying of such metals (Ni and Ti). Such a remarkable DLE suppression is attributed to the presence of defect centers in ZnO NWs. The defect transition energy of ZnO is in resonance with the surface plasmon energy of metal nanoparticles, which leads to the conversion of DLE into NBE. The enhancement of NBE and suppression of DLE are possible due to the surface plasmon resonance coupling between metal nanoparticles (NPs) and ZnO NWs. Therefore, we conclude that earth abundant metals, such as Ni and Ti show significant SPR coupling on ZnO NWs and the alloying (NiTi) of such metals presents further improved SPR compared to the respective individual metals.. |
| 33. | Kaname Imokawa, Nozomu Tanaka, Akira Suwa, Daisuke Nakamura, Taizoh Sadoh, Tetsuya Goto, Hiroshi Ikenoue, Characterization of Excimer-Laser Doping of a Poly-Si Thin Film with a Phosphoric-Acid Coating for Thin-Film-Transistor Fabrication, 25th International Workshop on Active-Matrix Flatpanel Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2018, 10.23919/AM-FPD.2018.8437343, 2018.08, We characterize poly-Si thin films doped by KrF excimer laser irradiation with a phosphoric-acid coating. In this method, implantation and dopant activation can be performed simultaneously without damage of the poly-Si crystallization. After the laser doping, the mobility, carrier concentration, activation ratio, and resistivity of poly-Si were 61 cm2/Vs, 1.5×1018 cm-3, 14.6 %, and 0.08 Ω.cm, respectively.. |
| 34. | Reiho Amano, Thang Hung Dinh, Atsushi Sasanuma, Goki Arai, Hiroyuki Hara, Yusuke Fujii, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Atsushi Sunahara, Akihiko Takahashi, Daisuke Nakamura, Tatsuo Okada, Kazuyuki Sakaue, Taisuke Miura, Gerry O'Sullivan, Takeshi Higashiguchi, Influence of short pulse duration of carbon dioxide lasers on extreme ultraviolet emission from laser-produced plasmas, Japanese Journal of Applied Physics, 10.7567/JJAP.57.070311, 57, 7, 2018.07, We describe the production of mid-infrared (mid-IR) short carbon dioxide (CO 2 ) laser pulses with variable durations from 3 to 15ns at a maximum pulse energy of 150 mJ/pulse using a germanium (Ge) substrate semiconductor switch and a multipass amplifier. The results clearly show the spectral profiles possess all of the desired characteristics as well as the possibility of obtaining an energy conversion efficiency close to the theoretical upper limit. It is also shown that it is necessary to irradiate with pulse durations less than 10ns to optimize efficient EUV emission using Sn and Gd targets.. |
| 35. | K. Fabitha, F. Nagasaki, Y. Fujiwara, Y. Wakiyama, Daisuke Nakamura, M. S. Ramachandra Rao, Room temperature WGM resonances in the red spectral range from Ho 3+ activated ZnO micro-spherical cavities, Applied Physics Letters, 10.1063/1.5031838, 112, 26, 2018.06, Highly crystalline and smooth 1% Ho 3+ doped ZnO microspheres with diameters ranging from 0.5 to 15 μm were synthesized using laser ablation technique. Near band edge whispering gallery mode (WGM) resonances from Ho:ZnO microspheres with a single oscillation route in the UV range are observed with 355 nm excitation. Apart from the significantly enhanced visible WGM resonances associated with intrinsic oxygen vacancy defects by Ho 3+ doping, the visible range WGM resonances associated with the Ho 3+ 5 F 5 → 5 I 8 emission at 629-690 nm are also observed with a 488 nm excitation. The WGMs of Ho 3+ f-f emission possess lower threshold and high Q-factor values.. |
| 36. | R. Amano,T.-H. Dinh,A. Sasanuma,G. Arai,Y. Fujii,A. Takahashi,D. Nakamura,T. Okada,T. Miura,T. Higashiguchi, A 10 Hz Short-Pulse CO2 Laser System for Extreme Ultraviolet Source, Springer Proceedings in Physics, 10.1007/978-3-319-73025-7_54, 202, 367-371, 2018.02. |
| 37. | R. Tasaki,M. Higashihata,A. Suwa,H. Ikenoue,D. Nakamura, High-speed observation of semiconductor microsphere generation by laser ablation in the air, Applied Physics A, 10.1007/s00339-018-1596-3, 124, 161, 2018.02. |
| 38. | Nanoka Miyahara, Kazuya Iwasaki, Daisuke Yamashita, Daisuke Nakamura, Hyunwoong Seo, Kazunori Koga, Masaharu Shiratani, Naho Itagaki, Photoluminescence of (Zno) 0.82 (inn) 0.18 films Incident light angle dependence, 10th International Conference on Processing and Manufacturing of Advanced Materials, 2018 THERMEC 2018, 10.4028/www.scientific.net/MSF.941.2099, 2099-2103, 2018.01, We have fabricated a new semiconducting material, (ZnO) x (InN) 1-x (called ZION hereafter), which is a pseudo-binary alloy of wurtzite ZnO (band gap: 3.4 eV) and wurtzite InN (band gap: 0.7 eV). We have succeeded in fabricating epitaxial (ZnO) 0.82 (InN) 0.18 films on ZnO templates by RF magnetron sputtering. XRD measurements show that the full width at half maximum of the rocking curves from (101) plane and (002) plane are significantly small of 0.11˚ and 0.16˚, respectively, indicating good in-plane and out-of-plane crystal alignment. High crystal quality of the films was also proved by deducing the defect density from XRD analysis showing that the edge type dislocation density is low of 8.2×10 8 cm -2 . Furthermore, we observed room temperature photoluminescence from ZION films as a parameter of incident angle of He-Cd laser light. The results indicate that an emission peak of 2.79 eV is originated from ZION.. |
| 39. | K. Oda,S. Kawagoe,Y. Tamari,M. Higashihata,N. J. Vasa,D. Nakamura, Laser Processing for Growth Control of ZnO Nanocrystals by Nanoparticle-Assisted Pulsed Laser Deposition , Proc. COPEN10, 500-503, 2017.12. |
| 40. | Ashish Kumar,Tejendra Dixit,I. A. Palani,D. Nakamur,M. Higashihat,VipulSingh, Utilization of surface plasmon resonance of Au/Pt nanoparticles for highly photosensitive ZnO nanorods network based plasmon field effect transistor, Physica E: Low-dimensional Systems and Nanostructures, https://doi.org/10.1016/j.physe.2017.06.005, 93, 97-104, 2017.07. |
| 41. | Parvathy Anitha Sukkurji,Yuki Fujiwara,Nilesh Jayantilal Vasa,M. S. Ramachandra Rao,Mitsuhiro Higashihata,Daisuke Nakamura, Optical and magnetic characterization of transition metal ion doped ZnO microspheres synthesized via laser ablation in air, Proc. SPIE, 10.1117/12.2253560, 10090, 100901X, 2017.02. |
| 42. | T. Tsuchiya,A. Suwa,A. Ikeda,D. Nakamura,T. Asano,H. Ikenoue, Damage free Al doping of 4H-SiC with passivation films using XeF excimer laser irradiation in AlCl3 acid solution, Proc. SPIE, 10.1117/12.2250712, 10091, 1009106, 2017.02. |
| 43. | Akira Suwa, Nozomu Tanaka, Taizoh Sadoh, Daisuke Nakamura, Hiroshi Ikenoue, Characterization of Si thin films doped by wet-chemical laser processing, SID Symposium, Seminar, and Exhibition 2017, Display Week 2017 Digest of Technical Papers - SID International Symposium, 10.1002/sdtp.11659, 48, 1, 430-432, 2017.01, In this paper, we report on the characterization of Si thin films doped by wet-chemical laser processing. Using this method, implantation and dopant activation can be performed simultaneously. After laser doping, the mobility, carrier concentration, and resistivity of the films were 74 cm2/V·s, 5.5 × 1017 cm-3, and 0.15 Ω·cm, respectively.. |
| 44. | P. Rajagopalan, Rohit Gagrani, Daisuke Nakamura, Tatsuo Okada, Vipul Singh, I. A. Palani, Parametric investigation of substrate temperatures on the properties of Zinc oxide deposited over a flexible polymeric substrate via spray technique, IOP Conference Series: Materials Science and Engineering, 10.1088/1757-899X/149/1/012069, 149, 1, 012069, 2016.10. |
| 45. | D. Nakamura,T. Tanaka,T. Ikebuchi,T. Ueyama,M. Higashihata,T. Okada, Synthesis of Spherical ZnO Microcrystals by Laser Ablation in Air, Electronics and Communications in Japan, 10.1002/ecj.11874, 99, 58-63, 2016.10. |
| 46. | Daisuke Nakamura, Toshinobu Tanaka, Tatsuya Ikebuchi, Takeshi Ueyama, Mitsuhiro Higashihata, Tatsuo Okada, Synthesis of spherical ZnO microcrystals by laser ablation in air, Electronics and Communications in Japan, 10.1002/ecj.11874, 99, 10, 58-63, 2016.09. |
| 47. | Fumiaki Nagasaki, Tetsuya Shimogaki, Toshinobu Tanaka, Tatsuya Ikebuchi, Takeshi Ueyama, Yuki Fujiwara, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Synthesis and characterization of Sb-doped ZnO microspheres by pulsed laser ablation , Japanese Journal of Applied Physics, 10.7567/JJAP.55.08RE07, 55, 8, 08RE07, 2016.08. |
| 48. | Daisuke Nakamura, Toshinobu Tanaka, Takeshi Ueyama, Tatsuya Ikebuchi, Yuki Fujiwara, Fumiaki Nagasaki, Shuhei Takao, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada, Fabrication of P-, Sb-, and Mg-doped ZnO spherical microcrystals by laser ablation in air, Journal of Laser Micro Nanoengineering, 10.2961/jlmn.2016.03.0010, 11, 3, 337-340, 2016.08. |
| 49. | Ryota Kojima, Hiroshi Ikenoue, Akihiro Ikeda, Akira Suwa, Daisuke Nakamura, Tanemasa Asano, Tatsuo Okada, Improvement in contact resistance of 4H-SiC by excimer laser doping using silicon nitride films, SPIE, 10.1117/12.2212021, 9738, 973803, 2016.04. |
| 50. | Masakazu Hattori, Hiroshi Ikenoue, Daisuke Nakamura, Kazuaki Furukawa, Makoto Takamura, Hiroki Hibino, Tatsuo Okada, Direct growth of graphene on SiC(0001) by KrF-excimer-laser irradiation, Applied Physics Letters, http://dx.doi.org/10.1063/1.4943142, 108, 093107, 2016.03. |
| 51. | Masakazu Hattori, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Observation of graphene growing process on SiC(0001) surface formed by KrF excimer-laser irradiation, SPIE, 10.1117/12.2211865, 9735, 97350Y, 2016.03. |
| 52. | Daisuke Nakamura, Tetsuya Shimogaki, Toshinobu Tanaka, Fumiaki Nagasaki, Yuki Fujiwara, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada, Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air, SPIE, 10.1117/12.2214054, 9735, 973511, 2016.03. |
| 53. | Yuki Fujiwara, Tatsuya Ikebuchi, Takeshi Ueyama, Toshinobu Tanaka, Fumiaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Optical and structural properties of P-doped ZnO microsphere synthesized by pulsed laser ablation, SPIE, 10.1117/12.2212157, 9749, 97490T, 2016.02. |
| 54. | Tetsuya Shimogaki, Masahiro Takahashi, Masaaki Yamasaki, Taichi Fukuda, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Catalyst-free growth of ZnO nanowires on various-oriented sapphire substrates by pulsed-laser deposition, Journal of Semiconductors, 10.1088/1674-4926/37/2/023001, 37, 2, 023001, 2016.02. |
| 55. | Reiho Amano, Thanh-Hung Dinh, Atsushi Sasanuma, Goki Arai, Yusuke Fujii, Kenichiro Nanto, Akihiko Takahashi, Daisuke Nakamura, Tatsuo Okada, Tetsuya Makimura, Taisuke Miura, Akira Endo, Tomas Mocek, Padraig Dunne, Gerry O'Sullivan, Takeshi Higashiguchi, Development of short pulse CO2 laser for efficient rare earth plasma extreme ultraviolet sources, 2015 IEEE Photonics Conference, 10.1109/IPCon.2015.7323554, 7323554, 78-79, 2015.11. |
| 56. | Takeshi Ueyama, Yuta Satou, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tatsuo Okada, Synthesis of ZnO Micro-Spheres by Laser Ablation and Their Application to Refractive Sensor, International Conference on Laser Ablation, P-088, 2015.09. |
| 57. | Toshinobu Tanaka, Fumiaki Nagasaki, Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tatsuo Okada, Synthesis of Mg-doped ZnO microspheres by laser ablation in air and their crystal and photoluminescence properties, International Conference on Laser Ablation 2015, O-67, 2015.09. |
| 58. | Takeshi Ueyama, Yuta Sato, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tatsuo Okada, Surface refractive index dependence on the oscillation peak of photoexcited ZnO microsphere, International Congress on Laser Advanced Materials Processing, 15-080: A131 (P-29), 2015.08. |
| 59. | Toshitaka Wakayama, Hiroki Oikawa, Atsushi Sasanuma, Goki Arai, Yusuke Fujii, Thanh-Hung Dinh, Takeshi Higashiguchi, Kazuyuki Sakaue, Masakazu Washio, Taisuke Miura, Akihiko Takahashi, Daisuke Nakamura, Tatsuo Okada, Motoki Yonemura, Yukitoshi Otani, Generation of radially polarized high energy mid-infrared optical vortex by use of a passive axially symmetric ZnSe waveplate, Applied Physics Letters, 10.1063/1.4929686, 107, 8, 081112, 2015.08. |
| 60. | Tetsuya Shimogaki, Hirotaka Kawahara, Shihomi Nakano, Kosuke Harada, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Yoshiki Nakata, Tatsuo Okada, Effect of Laser Irradiation on the Properties of ZnO Buffer Layers and Its Application to Selective-Growth of ZnO Nano/Microcrystals, Journal of Laser Micro Nanoengineering, 10.2961/jlmn.2015.03.0004, 10, 259-262, 2015.05. |
| 61. | Tejendra Dixit, Anubha Bilgaiyan, I. A. Palani, Daisuke Nakamura, Tatsuo Okada, Vipul Singh, Influence of potassium permanganate on the anisotropic growth and enhanced UV emission of ZnO nanostructures using hydrothermal process for optoelectronic applications, Journal of Sol-Gel Science and Technology, 10.1007/s10971-015-3741-1, 75, 3, 693-702, 2015.05. |
| 62. | Tetsuya Shimogaki, Hirotaka Kawahara, Shihomi Nakao, Mitsuhiro Higashihata, Hiroshi Ikenoue, Yoshiki Nakata, Daisuke Nakamura, Tatsuo Okada, Controlling ZnO nanowire surface density during its growth by altering morphological properties of a ZnO buffer layer by UV laser irradiation, Applied Physics A, 10.1007/s00339-014-8822-4, 118, 1239-1246, 2015.03, [URL]. |
| 63. | Toshinobu Tanaka, Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Synthesis of Sb-doped ZnO microspheres by pulsed laser ablation and their photoluminescence properties, Proc. SPIE, 9350, 93501L, 2015.03. |
| 64. | Daisuke Nakamura, Shuhei Takao, Tetsuya Shimogaki, Shihomi Nakao, Kosuke Harada, Mitsuhiro Higashihata, Tatsuo Okada, Dynamics of ZnO nanoparticles formed in the high-pressure phase during growth of ZnO nanocrystals, Proc. SPIE, 9350, 93500X, 2015.03. |
| 65. | Tetsuya Shimogaki, Hirotaka Kawahara, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Fabrication of ZnO crystals by UV-Laser Annealing on ZnO Nanoparticles prepared by Laser Ablation Method, Proc. SPIE, 9364, 93640C-1, 2015.03. |
| 66. | Masahiro Takahashi, Kosuke Harada, Shihomi Nakao, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Ultraviolet Lasing from Vertically-Aligned ZnO Nanowall Array, International Journal of Chemical, Nuclear, Materials and Metallurgical Engineering, 9, 439-442, 2015.03. |
| 67. | Tatsuya Ikebuchi, Norihiro Tetsuyama, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Hybrid hetero p-n Junction Between ZnO Microspheres and p-type Materials, Advanced Materials Research, Key Engineering Materials V, 184-188, 2015.03. |
| 68. | Hirotaka Kawahara, Tetsuya Shimogaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Document Laser doping of Sb into ZnO nanowires in the Sb nanoparticle-dispersed liquid, Applied Physics B, 10.1007/s00340-015-6062-8, 119, 463-467, 2015.03. |
| 69. | Kosuke Harada, Shihomi Nakao, Masahiro Takahashi, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Yoshiki Nakata, Tatsuo Okada, Ultraviolet lasing action in aligned ZnO nanowall, Applied Physics B, 10.1007/s00340-015-6103-3, 119, 3, 469-473, 2015.03. |
| 70. | Daisuke Nakamura, Norihiro Tetsuyama, Tetsuya Shimogaki, Yuta Sato, Yasuaki Mizokami, Mitsuhiro Hiagashihata, Tatsuo Okada, Optical Characterization of ZnO Microsphere Produced by Laser Ablation in Air, Journal of Laser Micro Nanoengineering, 10.2961/jlmn.2015.02.0010, 10, 2, 162-165, 2015.02. |
| 71. | Zhiwen Qiu, Haibo Gong, Xiaopeng Yang, Zichao Zhang, Jun Han, Bingqiang Cao, Daisuke Nakamura, Tatsuo Okada, Phosphorus Concentration Dependent Microstructure and Optical Property of ZnO Nanowires Grown by High-Pressure Pulsed Laser Deposition, Journal of Physical Chemistry C, 10.1021/jp511872c, 119, 8, 4371-4378, 2015.02. |
| 72. | Daisuke Nakamura, Norihiro Tetsuyama, Tetsuya Shimogaki, Mitsuhiro Higashihata, Tatsuo Okada, Improvement of junction properties of ZnO nanorod/GaN heterojunction using selective laser processing, Journal of Laser Micro Nanoengineering, 10.2961/jlmn.2014.03.0005, 9, 209-212, 2014.11, [URL]. |
| 73. | Tetsuya Shimogaki, Kota Okazaki, Kota Yamasaki, Koshi Fusazaki, Yasuaki Mizokami, Norihiro Tetsuyama, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Fabrication and characterization of spherical micro semiconductor crystals by laser ablation method, Appl. Phys. A, 10.1007/s00339-014-8529-6, 117, 269-273, 2014.10. |
| 74. | V. Sathiesh Kumar, Nilesh J. Vasa, R. Sarathi, Daisuke Nakamura, Tatsuo Okada, Understanding the discharge activity across GFRP material due to salt deposit under transient voltages by adopting OES and LIBS technique, IEEE Transactions on Dielectrics and Electrical Insulation, 10.1109/TDEI.2014.004120, 21, 5, 2283-2292, 2014.10. |
| 75. | Norihiro Tetsuyama, Koshi Fusazaki, Yasuaki Mizokami, Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Ultraviolet electroluminescence from hetero p-n junction between a single ZnO microsphere and p-GaN thin film, Optics Express, 22, 10026-10031, 2014.04. |
| 76. | Daisuke Nakamura, Norihiro Tetsuyama, Tetsuya Shimogaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada, Electroluminescence from ZnO nanowire-based heterojunction LED, Proc. SPIE, 8987, 89870H, 2014.03. |
| 77. | Tetsuya Shimogaki, Taihei Ofuji, Norihiro Tetsuyama, Hirotaka Kawahara, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tatsuo Okada, Control of optical and electrical properties of ZnO nanocrystals by nanosecond-laser annealing, Proc. SPIE, 8987, 89870G, 2014.03. |
| 78. | Daisuke Nakamura, Tetsuya Shimogaki, Koshi Fusazaki, Yasuaki Mizokami, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada, Emission characteristics of electrically- and optically-pumped single ZnO micro-spherical crystal, Proc. SPIE, 8987, 89870B, 2014.03. |
| 79. | Daisuke Nakamura, Tetsuya Shimogaki, Shihomi Nakao, Kosuke Harada, Mitsuhiro Higashihata, Yoshiki Nakata, Tatsuo Okada, Shape-controlled ZnO nanocrystals using multi-beam interference irradiation, Proc. SPIE, 8967, 89671G, 2014.03. |
| 80. | Kota Yamasaki, Hiroshi Ikenoue, Tetsuya Shimogaki, Yosuke Watanabe, Daisuke Nakamura, Tatsuo Okada, High quality ZnO film formation by CO2 laser annealing of buried films in SiO2 matrix, Proc. SPIE, 8967, 89671E, 2014.03. |
| 81. | Tetsuya Shimogaki, Taihei Ofuji, Norihiro Tetsuyama, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tanemasa Asano, Tatsuo Okada, Effect of laser annealing using high repetition rate pulsed laser on optical properties of phosphorus-ion-implanted ZnO nanorods, APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 10.1007/s00339-013-7638-y, 114, 2, 625-629, 2014.02. |
| 82. | E Senthil Kumar, Maneesh Chandran, F Bellarmine, Ramanjaneyulu Mannam, Daisuke Nakamura, Mitsuhiro Higashihata, Tatsuo Okada, M S Ramachandra Rao, Formation of one-dimensional ZnO nanowires from screw-dislocation-driven two-dimensional hexagonal stacking on diamond substrate using nanoparticle-assisted pulsed laser deposition, J. Phys. D: Appl. Phys., 10.1088/0022-3727/47/3/034016, 47, 034016 , 2014.01. |
| 83. | Daisuke Nakamura, Tetsuya Shimogaki, Shihomi Nakao, Kosuke Harada, Yuuki Muraoka, Hiroshi Ikenoue, Tatsuo Okada, Patterned growth of ZnO nanowalls by nanoparticle-assisted pulsed laser deposition, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 10.1088/0022-3727/47/3/034014, 47, 3, 034014, 2014.01. |
| 84. | Daisuke Nakamura, Tetsuya Shimogaki, Kota Okazaki, Mitsuhiro Higashihata, Tatsuo Okada, Growth Control of ZnO Nano-Crystals by Multi-Beam Interference Patterning, JOURNAL OF LASER MICRO NANOENGINEERING, 10.2961/jlmn.2013.03.0004, 8, 3, 206-209, 2013.12. |
| 85. | Daisuke Nakamura, Tetsuya Shimogaki, Kota Okazaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada, Synthesis of Various Sized ZnO Microspheres by Laser Ablation and Their Lasing Characteristics, JOURNAL OF LASER MICRO NANOENGINEERING, 10.2961/jlmn.2013.03.0018, 8, 3, 296-299, 2013.12. |
| 86. | Daisuke Nakamura, Tetsuya Shimogaki, Yuuki Muraoka, Shihomi Nakao, Kosuke Harada, Mitsuhiro Higashihata, Tatsuo Okada, Laser-controlled growth of ZnO nanocrystrals by nanoparticleassisted pulsed laser deposition, International Conference on Intelligent Robotics, Automation and Manufacturing, 529-545, 2013.12. |
| 87. | Takeshi Higashiguchi, Bowen Li, Yuhei Suzuki,, Hayato Ohashi,, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Weihua Jiang, Taisuke Miura, Padraig Dunne, Gerry O’Sullivan, Tetsuya Makimura, Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasmas, OPTICS EXPRESS, 10.1364/OE.21.031837, 21, 26, 31837-31845, 2013.12. |
| 88. | Yasuaki Mizokami, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Measurement of the Oscillation Wavelength Shift Towards a Sensor Application of ZnO Microspheres, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 89. | Norihiro Tetsuyama, Yuki Ishida, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Fabrication of UV-LED Using ZnO Nanowires Directly Grown on p-GaN Film by NAPLD, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 90. | Yuuki Muraoka, Tatsuro Sugie, Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Controlled Growth of ZnO Nanocrystals Using Laser Interference Irradiation, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 91. | Daisuke Nakamura, Tetsuya Shimogaki, Kota Okazaki, Koshi Fusazaki, Mitsuhiro Higashihata, Tatsuo Okada, Lasing Characteristic of ZnO Microsphere Prepared by a Simple Laser Ablation Method, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 92. | Tetsuya Shimogaki, Teihei Ofuji, Mitsuhiro Higashihata, Hiroshi Ikenoue, Daisuke Nakamura, Tanemasa Asano, Tatsuo Okada, Dependence on Repetition Rate in Post-Laser Annealing Process of Ion-Implanted ZnO Nanorods Using KrF Excimer Laser, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 93. | V. Sathiesh Kumar, Nilesh J. Vasa, R. Sarathi, Daisuke Nakamura, Tatsuo Okada, LIBS Combined with Temporal and Spatial Measurements for Detecting a Salt Deposit on a GFRP Material, Proc. CLEO Pacific Rim 2013, 2013.07. |
| 94. | Tetsuya Shimogaki, Taihei Ofuji, Norihiro Tetsuyama, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tanemasa Asano, Tatsuo Okada, Effect of High Repetition Pulsed Laser Annealing on Optical Properties of Phosphorus Ion-Implanted ZnO Nanorods, Advanced Materials Research, 10.4028/www.scientific.net/AMR.699.383, 699, 383-386, 2013.05. |
| 95. | Tetsuya Makimura, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Hiroyuki Niino, Kouichi Murakami, Responses of organic and inorganic materials to intense EUV radiation from laser-produced plasmas, Proc. SPIE, 10.1117/12.2019048, 8777, 877706, 2013.05. |
| 96. | Kota Okazaki, Tetsuya Shimogaki, Koshi Fusazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Naoto Koshizaki, Tatsuo Okada, Lasing characteristics of optically-pumped single ZnO micro/nanocrystal, Proc. SPIE, 8626, 86260W, 2013.03. |
| 97. | Tetsuya Shimogaki, Taihei Ofuji, Norihiro Tetsuyama, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tanemasa Asano, Tatsuo Okada, Applications of nanosecond laser annealing to fabricating p-n homo junction on ZnO nanorods, Proc. SPIE, 8626, 86260V , 2013.03. |
| 98. | Daisuke Nakamura, Tetsuya Shimogaki, Kota Okazaki, Mitsuhiro Higashihata, Yoshiki Nakata, Tatsuo Okada, Growth of periodic ZnO nano-crystals on buffer layer patterned by interference laser irradiation, LASER APPLICATIONS IN MICROELECTRONIC AND OPTOELECTRONIC MANUFACTURING (LAMOM) XVIII, 10.1117/12.2002961, 8607, 860703, 2013.03. |
| 99. | Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tanemasa Asano, Tatsuo Okada, Effect of Laser Annealing on Optical Properties of Ion-Implanted ZnO Nanorods, Journal of Laser Micro/Nanoengineering, 8, 75-78, 2013.01. |
| 100. | Kota Okazaki, Tetsuya Shimogaki, Daisuke Nakamura, Mitsuhiro Higashihata, Tatsuo Okada, Lasing of ZnO Micro / Nanocrystals by Ultraviolet Laser Excitation and Atmospheric Alignment with Laser-induced Motions and Electrical Field, Journal of Laser Micro/Nanoengineering, 7, 264-268, 2012.11. |
| 101. | Kota Okazaki, Tetsuya Shimogaki, Koshi Fusazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Naoto Koshizaki, Tatsuo Okada, Ultraviolet whispering-gallery-mode lasing in ZnO micro/nano sphere crystal, Appl. Phys. Lett, 101, 211105 , 2012.11. |
| 102. | I.A. Palani, K. Okazaki, D. Nakamura, K. Sakai, M. Higashihata, T. Okada, Structural and optical properties of Sb-Al co-doped ZnO nanowires synthesized using Nanoparticle Assisted Pulsed Laser Deposition (NAPLD) with Sb as catalyst, Journal of Alloys and Compounds, 527, 112-116, 2012.06. |
| 103. | Tetsuya Shimogaki, Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tanemasa Asano, Tatsuo Okada, Effect of laser annealing on photoluminescence properties of Phosphorus implanted ZnO nanorods, Opt. Exp, 20, 15247-15252, 2012.06. |
| 104. | Kota Okazaki, Tetsuya Shimogaki, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada, Synthesis and Nano-Processing of ZnO Nano-Crystals for Controlled Laser Action, Proc. MRS, 1439, 121-126, 2012.04. |
| 105. | PALANI ANAND IYAMPERUMAL, Daisuke Nakamura, Kota Okazaki, Tetsuya Shimogaki, Mitsuhiro Higashihata, Tatsuo Okada, Influence of ZnO buffer layer on growth of Sb doped ZnO nano wires using nano particle assisted pulsed laser deposition (NAPLD) using Sb as catalyst, Adv. Mater. Lett., 3, , 66, 2012.02. |
| 106. | PALANI ANAND IYAMPERUMAL, Kota Okazaki, Daisuke Nakamura, Kentaro Sakai, Mitsuhiro Higashihata, Tatsuo Okada, Influence of Sb in synthesize of ZnO nanowire using sandwich type substrate in carbothermal evaporation method, Appiled Surface Science, 258, 3611-3616 , 2012.02. |
| 107. | Daisuke Nakamura, Kota Okazaki, Kazuki Kubo, Koji Tsuta, Mitsuhiro Higashihata, Tatsuo Okada, Synthesis of Core/Shell Nanowires Using Doped ZnO Targets, J. laser Micro/Nanoeng., 7, 109-111, 2012.01. |
| 108. | Daisuke Nakamura, Kota Okazaki, Iyampermal A. Palani, Kazuki Kubo, Koji Tsuta, Mitsuhiro Higashihata, Tatsuo Okada, Infuence of ZnO buffer layer on ZnO nanowire growth by nanoparticleassisted pulsed laser deposition, Proc. SPIE, 8245, 82450N, 2012.01. |
| 109. | Shuichi Torii, Tetsuya Makimura, Kota Okazaki, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Hiroyuki Niino, Kouichi Murakami, Micromachining of Polymethylmethacrylate and Polydimethylsiloxane Using Laser Plasma Soft X-rays, J. laser Micro/Nanoeng, 6, 235-238, 2011.11. |
| 110. | I.A. Palani, K. Okazaki, D. Nakamura, K. Sakai, M. Higashihata, T. Okada, Influence of Sb in synthesize of ZnO nanowire using sandwich type substrate in carbothermal evaporation method, Appiled Surface Science, 258, 3611-3616 , 2011.11. |
| 111. | Kota Okazaki, Daisuke Nakamura, Mitsuhiro Higashihata, Palani Iyamperumal, and Tatsuo Okada, Lasing characteristics of an optically pumped single ZnO nanosheet, Optics Express, 19, 20389, 2011.10. |
| 112. | I.A. Palani, K. Okazaki, D. Nakamura, M. Higashihata, T. Okada, Influence of Sb as a catalyst in the growth of ZnO nano wires and nano sheets using Nanoparticle Assisted Pulsed Laser Deposition (NAPLD), Materials Science and Engineering B, 176, 1526-1530, 2011.09. |
| 113. | I.A. Palani, K. Okazaki, D. Nakamura, M. Higashihata, T. Okada, Influence of Sb as a catalyst in the growth of ZnO nano wires and nano sheets using Nanoparticle Assisted Pulsed Laser Deposition (NAPLD), Materials Science and Engineering B, 176, 1526-1530, 2011.09. |
| 114. | D. Nakamura, K. Okazaki, I.A. Palani, M. Higashihata, T. Okada, Influence of Sb on a controlled-growth of aligned ZnO nanowires in nanoparticle-assisted pulsed-laser deposition, Applied Physics A, 10.1007/s00339-011-6401-5, 103, 959–963, 2011.04. |
| 115. | D. Nakamura, T. Matsumoto, A. Kumeda, K. Toya, M. Higashihata, T. Okada, Synthesis of ZnO Nanowire Heterostructures by Laser Ablation and Their Photoluminescence, Journal of Laser Micro/Nanoengineering, 6, 23-25 , 2011.01. |
| 116. | B. Q. Cao, K. Sakai, D. Nakamura, I. A. Palani, H. B. Gong, H. Y. Xu, M. Higashihata, T. Okada, Stimulated optical emission from ZnO nanobelts grown with a simple carbothermal evaporation method, Journal of Physical Chemistry C, 115, 1702-1707, 2011.01. |
| 117. | D. Nakamura, A. Kumeda, K. Toya, K. Okazaki, K. Kubo, K. Tsuta, M. Higashihata, T. Okada, Fabrication of layer structured ZnO nanowire by nanoparticle-assisted pulsed laser deposition for optoelectronic application, SPIE, 7922, 792203, 2011.01. |
| 118. | K. Okazaki, D. Nakamura, M. Higashihata, T. Okada, Lasing and laser-induced motion of zinc oxide nano-crystals irradiated by ultraviolet laser beam, SPIE, 7922, 79220M, 2011.01. |
| 119. | D. Nakamura, A. Kumeda, K. Toya, K. Okazaki, K. Kubo, K. Tsuta, M. Higashihata, T. Okada, Synthesis and characterization of layer structured ZnO nanowire for ultraviolet light-emitting diode, SPIE, 7940, 79400C, 2011.01. |
| 120. | K. Okazaki, S. Torii, T. Makimura, H. Niino, K. Murakami, D. Nakamura, A. Takahashi, T. Okada, Micromachining of Transparent Materials with Fresnel Diffraction of Infrared Radiation, Journal of Laser Micro/Nanoengineering, 5, 3, 269-272, 2010.11. |
| 121. | A. Takahashi, S. Torii, T. Makimura, K. Murakami, K. Okazaki, D. Nakamura, T. Okada, H. Niino, Micromachining of silica glass using EUV radiation of laser-produced plasma, IEEJ Trans. EIS, 130, 10, 1779-1783, 2010.10. |
| 122. | D. Nakamura, T. Okada, K. Sakai, Synthesis and optical property of nanostructured ZnO crystals by nanoparticle-assisted pulsed laser deposition, SPIE, 7996, 79960E, 2010.07. |
| 123. | S. Torii, T. Makimura, K. Okazaki, D. Nakamura, A. Takahashi, T.Okada, H. Niino, K. Murakami, Direct Etching of Polymethylmethacrylate (PMMA) Using Laser Plasma Soft X-Rays, Applied Physics Express, 2010.05. |
| 124. | Shubra Singh, Daisuke Nakamura, Kentaro Sakai, Tatsuo Okada and M S Ramachandra Rao, Investigation of low-temperature excitonic and defect emission from Ni-doped ZnO nanoneedles and V-doped ZnO nanostructured film, New Journal of Physics, 12, 023007, 2010.02. |
| 125. | D. Nakamura, T. Matsumoto, A. Kumeda, K. Toya, K. Okazaki, M. Higashihata, B. Q. Cao, and T. Okada , Synthesis and characterization of ZnO nanocrystals by nanoparticle-assisted pulsed laser deposition, SPIE, 7586, 75860B, 2010.01. |
| 126. | D. Nakamura, N. Matsuoka, K. Tatsuguchi, M. Ogata, Y. Yoshinaga, H. Enaida, T. Okada, T. Ishibashi , Oxygen Saturation Imaging of Human Retinal Vessels and Measurement in Eye Disease Patient for Clinical Application, SPIE, 7550, 75501X, 2010.01. |
| 127. | Guo Ruiqian，M. Matsumoto, T. Matsumoto, M. Higashihata, D. Nakamura, T. Okada, Aligned growth of ZnO nanowires by NAPLD and their optical characterizations, Appl. Sur. Sci., 255, 9671, 2009.09. |
| 128. | D. Nakamura, K. Okazaki, T. Akiyama, K. Toya, A. Takahashi, T. Okada, T. Yanagida, Y. Ueno, Y. Sasaki, T. Suganuma, M. Nakano, H. Komori, A. Sumitani, A. Endo, Diagnostics of Ablation Dynamics of Tin micro-Droplet for EUV Lithography Light Source, CLEO Pacific Rim 2009, 2009.08. |
| 129. | B. Q. Cao, T. Matsumoto, M. Higashihata, D. Nakamura, T. Okada, ZnO Nanowalls Grown with PLD and their Field Emission and UV Detector Properties, CLEO Pacific Rim 2009, 2009.08. |
| 130. | T. Matsumoto, A. Kumeda, B. Q. Cao, M. Higashihata, D. Nakamura, T. Okada, Synthesis of Horizontally-Aligned ZnO Nanowires and Their Applications to Sensors, CLEO Pacific Rim 2009, 2009.08. |
| 131. | N. Matsuoka, K. Tatsuguchi, M. Ogata, D. Nakamura, Y. Yoshinaga, H. Enaida, T. Okada, T. Ishibashi, Development of Oxygen Saturation Level Measurement Method of Retinal Blood Vessels by Spectroscopic Imaging, CLEO Pacific Rim 2009, 2009.08. |
| 132. | B. Q. Cao, T. Matsumoto, M. Higashihata, D. Nakamura, T. Okada, ZnO Nanowalls Grown with High-Pressure PLD and Their Applications as Field Emitters and UV Detectors, J. Phys. Chem. C, 113, ２５, 10975, 2009.06. |
| 133. | K. Okazaki, D. Nakamura, T. Akiyama, K. Toya, A. Takahashi, T. Okada, Dynamics of Laser-Irradiated Tin Micro-Droplet for EUV Light Source, LAMP 2009, 85, 2009.06. |
| 134. | R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, T. Okada, Electroluminescence from ZnO nanowire-based p-GaN/n-ZnO heterojunction light-emitting diodes, Appl. Phys. B, 1, 33-38, 2009.01. |
| 135. | K. Okazaki, D. Nakamura, T. Akiyama, K. Toya, A. Takahashi, T. Okada, Dynamics of debris from laser-irradiated Sn droplet for EUV lithography light source, SPIE, vol.7201, 72010T, 2009.01. |
| 136. | D. Nakamura, S. Sueda, N. Matsuoka, Y. Yoshinaga, H. Enaida, T. Okada, T. Ishibashi, Automated Spectroscopic Imaging of Oxygen Saturation in Human Retinal Vessels, SPIE, vol.7163, 71631N, 2009.01. |
| 137. | D. Nakamura, T. Akiyama, K. Okazaki, K. Tamaru, A. Takahashi, T. Okada, Ablation dynamics of tin micro-droplet irradiated by double pulse laser used for extreme ultraviolet lithography source, J. Phys. D: Appl. Phys., Vol.41, 245210, 2008.12. |
| 138. | D. Nakamura, T. Akiyama, A. Takahashi, T. Okada, Imaging diagnostics of debris from laser-produced tin plasma with droplet target for EUV light source, J. Laser Micro/Nanoengineering, 2008.12. |
| 139. | R. Guo, J. Nishimura, M. Matsumoto, D. Nakamura, T. Okada, Catalyst-Free Synthesis of Vertically-Aligned ZnO Nanowires by Nanoparticle-Assisted Pulsed Laser Deposition, Applied Physics B, vol.93, 843-847, 2008.12. |
| 140. | 中村 大輔，秋山智哉，高橋昭彦，岡田龍雄, 錫ターゲットを用いたレーザー生成プラズマEUV光源からのデブリ放出特性, レーザー研究, 2008.11. |
| 141. | Akihiko Takahashi, Daisuke Nakamura, Koji Tamaru, Tomoya Akiyama, Tatsuo Okada, Emission characteristics of debris from CO2 and Nd:YAG laserproduced tin plasmas for extreme ultraviolet lithography light source, Appl. Phys. B, 2008.07. |
| 142. | T. Okada, R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, Vertically- and Horizontally-Aligned Growth Of ZnO Nanowires by Nanoparticle-Assisted Pulsed-Laser Deposition, ICCE, 531-532, 2008.07. |
| 143. | A. Takahashi, D. Nakamura, K. Tamaru, T. Akiyama, T. Okada, Comparative Study on EUV and Debris Emission from CO2 and Nd:YAG Laser-Produced Tin Plasmas, Journal of Physics, Conference Series, vol.112, 042059, 2008.05. |
| 144. | Daisuke Nakamura, Koji Tamaru, Tomoya Akiyama, Akihiko Takahashi, Tatsuo Okada, Investigation of Debris Dynamics from Laser-Produced Tin Plasma for EUV Lithography Light Source, Applied Physics A, DOI 10.1007/s00339-008-4566-3, 2008.04. |
| 145. | Daisuke Nakamura, Jun Nishimura, Tatsuo Okada, Micro-Plasma Generated at Solid-Solid Interface and Its Application to Nano-Structure Formation, Appl. Phys. A, 10.1007/s00339-008-4573-4, 2008.04. |
| 146. | R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, J. Suehiro, T. Okada, Aligned Growth of ZnO Nanowires and Lasing in Single ZnO Nanowire Optical Cavities, Applied Physics B, vol.90, 3-4, 539-542, 2008.03. |
| 147. | R. Guo, J. Nishimura, D. Nakamura, T. Okada, Substrate Effects on ZnO Nanostructure Growth via Nanoparticle-Assisted Pulsed-Laser Deposition, Applied Surface Science, vol.254, 3100-3104, 2008.03. |
| 148. | R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, J. Suehiro, T. Okada, Effect of pH on Water-solubilization of Carbon Nanotube using Microplasma in Aqueous Solution, the 25th Sympo. on Plasma Processing, 539-542, 2008.03. |
| 149. | D. Nakamura, Tamaru Koji, T. Akiyama, A. Takahashi and T. Okada, Debris Generation from CO2 and Nd:YAG Laser-Produced Tin Plasma for EUV Light Source , SPIE, 6879, 687909, 2008.01. |
| 150. | Daisuke Nakamura, Koji Tamaru, Tomoya Akiyama, Tomohiro Kawano, Akihiko Takahashi, Tatsuo Okada, Diagnostics of Debris from Laser-Produced Tin Plasma with Droplet Target for EUV Light Source, APLS2008, 2008.01. |
| 151. | R. Guo, J. Nishimura, M. Matsumoto, D. Nakamura, T. Okada, Density-Controlled Growth of ZnO Nanowires via Nanoparticle-Assisted Pulsed-Laser Deposition and Their Optical Properties, Japanese Journal of Applied Physics, vol.47, 1, 741-745, 2008.01. |
| 152. | T. Okada, R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, Controlled Growth of ZnO Nanowires by Nanoparticle-Assisted Laser Ablation Deposition, SPIE, vol.6895, 68950S, 2008.01. |
| 153. | T. Okada, R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, Synthesis of Vertically-aligned ZnO Nanowires by Nanoparticle-Assisted Pulsed Laser Deposition, Asia Pacific Laser Symposium, 134, 2008.01. |
| 154. | R. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, T. Okada, Aligned Growth of ZnO Nanowires by NAPLD and Their Optical Properties, Asia Pacific Laser Symposium, 175, 2008.01. |
| 155. | Daisuke Nakamura, Hiroki Tanaka, Koji Tamaru, Yuki Hashimoto, Akihiko Takahashi, and Tatsuo Okada, Mitigation of Fast Ions Generated from Laser-Produced Sn Plasma for Extreme Ultraviolet Light Source by H2 Gas, Journal of Applied Physics, 2007.10. |
| 156. | Daisuke Nakamura, Yuki Hashimoto, Koji Tamaru, Akihiko Takahashi, Tatsuo Okada, Laser-Imaging of Laser-Produced Tin plume behavior for EUV Light Source, CLEO Pacific Rim 2007, 2007.08. |
| 157. | Daisuke Nakamura, Jun Nishimura, Tatsuo Okada, Dynamics of Micro-Plasma Generated at Solid-Solid Interface Transparent Material by UV-Laser Pulses, CLEO Pacific Rim 2007, 2007.08. |
| 158. | R. Guo, J. Nishimura, M. Ueda, M. Higashihata, D. Nakamura, T. Okada, Vertically Aligned Growth of ZnO Nanonails by Nanoparticle-Assisted Pulsed-Laser Ablation Deposition, Applied Physics A, vol.89, 141-144, 2007.02. |
| 159. | D. Nakamura, H. Tanaka, Y. Hashimoto, K.Tamaru, A. Takahashi and T. Okada, Laser-Imaging Diagnostics of Debris Behavior from Laser-Produced Tin Plasma for EUV Light Sources, Photonics West 2007, 2007.01. |
| 160. | D. Nakamura, Y. Oki, T. Higotani, T. Takao, M. Maeda, Nanometer-Scale Depth Resolution and Sensitive Surface Analysis Using Laser Ablation Atomic Fluorescence Spectroscopy, Japanese Journal of Applied Physics, Vol. 45, No. 6A, 2006, pp. 5322-5325, 2006.08, [URL]. |
| 161. | Daisuke Nakamura, Takayuki Takao, Yuji Oki, and Mitsuo Maeda, Active control of the ablation plume for laser ablation atomic fluorescence spectroscopy, Photonics West 2006, 136, 2006.01. |
| 162. | Daisuke Nakamura, Takayuki Takao, Yuji Oki, and Mitsuo Maeda, Attogram Detection on Solid Surface Analysis Using Laser Ablation Atomic Spectroscopy, CLEO/Pacific Rim 2005, 93, 2005.07. |
| 163. | Daisuke Nakamura, Yuji Oki, Takayuki Takao and Mitsuo Maeda, Attogram and nanometer trace element detection from solid surface by soft laser ablation atomic fluorescence spectroscopy, CLEO/QELS 2005, 119, 2005.05. |
| 164. | Daisuke Nakamura, Takayuki Takao, Yuji Oki, and Mitsuo Maeda, Improvement of detection sensitivity of solid state surface analysis using LAAF spectroscopy, ICO’04, 131-132, 2004.07. |
| 165. | Daisuke Nakamura, Takayuki Takao, Yuji Oki, and Mitsuo Maeda, Trace element analysis of nanometer-scaled solid state surface by laser ablation atomic fluorescence spectroscopy, the 5th CLEO/Pacific Rim 2003, 478-480, 2003.12. |
| 166. | Daisuke Nakamura, Takayuki Takao, Yuji Oki, and Mitsuo Maeda, High sensitive element analysis of solid state surface by laser ablation atomic fluorescence spectroscopy, International Symp. of ISEE 2003, 589-592, 2003.11. |
| 167. | Yuji Oki, Takashi Higotani, Mitsuo Maeda, Daisuke Nakamura and Takayuki Takao, Nanoscale and femtogram trace element analysis using soft laser ablation fluorescence spectroscopy, CLEO/QELS 2003, 2003.05. |
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