1. |
Shun Kawamura, Masato Yamaguchi, Satoshi Kono, Masashi Arakawa, Tomokazu Yasuike, Takuya Horio, Akira Terasaki, Photodestruction Action Spectroscopy of Silver Cluster Anions, AgN– (N = 3–19), with a Linear Ion Trap: Observation of Bound Excited States above the Photodetachment Threshold, The Journal of Physical Chemistry A, 10.1021/acs.jpca.3c02900, 127, 29, 6063-6070, 2023.07. |
2. |
K. Minamikawa, T. Nishizato, H. Hashimoto, K. Matsumoto, M. Arakawa, T. Horio, A. Terasaki, Probing Superatomic Orbitals of Sc-Doped and Undoped Silver Cluster Anions via Photoelectron Angular Anisotropy, The Journal of Physical Chemistry Letters, 10.1021/acs.jpclett.3c00538, 14, 17, 4011-4018, 2023.04. |
3. |
Takuya Horio, Kento Minamikawa, Tasuku Nishizato, Haruki Hashimoto, Kazuaki Matsumoto, Masashi Arakawa, Akira Terasaki, Photoelectron imaging of size-selected metal cluster anions in a quasi-continuous mode, Review of Scientific Instruments, 10.1063/5.0097968, 93, 8, 083302-083302, 2022.08, We present a novel high-repetition-rate photoelectron imaging (PEI) apparatus for exploring electronic structures of metal cluster anions. A continuous beam of mass-selected metal cluster anions, generated by a magnetron-sputtering cluster-ion source coupled with a quadrupole mass filter, is chopped into sub-megahertz ion bunches using a high-voltage pulser. The quasi-continuous anion beam is introduced into a PEI spectrometer, where the anions are photodetached using a 404 nm (3.07 eV) continuous-wave laser diode. As a demonstration, we acquire photoelectron images for size-selected Ag cluster anions, Ag N− ( N = 3, 7, 14), and show that each image can be obtained in a short accumulation time (50 s) with a kinetic energy resolution (Δ E/ E) of 4% at E = 1.77 eV. The quasi-continuous PEI technique enables high-count-rate, space-charge-free acquisition of photoelectron spectra and angular distributions not only from size-selected metal cluster anions but also from anions prepared by other continuous ion sources, such as electrospray ionization.. |
4. |
Shutaro Karashima, Alexander Humeniuk, Ryuta Uenishi, Takuya Horio, Manabu Kanno, Tetsuro Ohta, Junichi Nishitani, Roland Mitrić, Toshinori Suzuki, Ultrafast Ring-Opening Reaction of 1,3-Cyclohexadiene: Identification of Nonadiabatic Pathway via Doubly Excited State, Journal of the American Chemical Society, 10.1021/jacs.1c01896, 143, 21, 8034-8045, 2021.06. |
5. |
Naoya Kurahashi, Stephan Thürmer, Suet Yi Liu, Yo-ichi Yamamoto, Shutaro Karashima, Atanu Bhattacharya, Yoshihiro Ogi, Takuya Horio, Toshinori Suzuki, Design and characterization of a magnetic bottle electron spectrometer for time-resolved extreme UV and X-ray photoemission spectroscopy of liquid microjets, Structural Dynamics, 10.1063/4.0000107, 8, 3, 034303-034303, 2021.05. |
6. |
Tetsuichiro Hayakawa, Masashi Arakawa, Satoshi Kono, Takefumi Handa, Naho Hayashi, Kento Minamikawa, Takuya Horio, Akira Terasaki, X-ray absorption spectroscopy of small copper-oxide cluster ions for analyses of Cu oxidation state and Ar complexation: CuOAr+ and Cu2O2 +, Zeitschrift für Physikalische Chemie, 10.1515/zpch-2020-1668, 235, 1-2, 213-224, 2021.02, Abstract Small copper-oxide cluster cations, namely, CuOAr+ and Cu2O2 +, are studied by mass spectrometry and X-ray absorption spectroscopy (XAS) to investigate the oxidation state of copper atoms. The XAS in Cu L3-region revealed that the oxidation number of Cu is almost +2.1 and +2.3 for CuOAr+ and Cu2O2 +, respectively, which are consistent with the natural charges obtained by quantum chemical calculation. It was also revealed that the binding energy of Ar to CuO+ is unexpectedly high to form CuOAr+ dominantly as a result of a significant amount of charge transfer to the Ar atom.. |
7. |
Takefumi Handa, Takuya Horio, Masashi Arakawa, Akira Terasaki, Improvement of reflectron time-of-flight mass spectrometer for better convergence of ion beam, International Journal of Mass Spectrometry, 10.1016/j.ijms.2020.116311, 451, 116311-116311, 2020.05. |
8. |
Ryuta Uenishi, Takuya Horio, Toshinori Suzuki, Time-Resolved Photoelectron Imaging of Acetone with 9.3 eV Photoexcitation, The Journal of Physical Chemistry A, 10.1021/acs.jpca.9b05179, 123, 32, 6848-6853, 2019.08. |
9. |
Takuya Horio, Roman Spesyvtsev, Yu Furumido, Toshinori Suzuki, Real-time detection of S(1D2) photofragments produced from the 1B2(1Σu+) state of CS2 by vacuum ultraviolet photoelectron imaging using 133 nm probe pulses, The Journal of Chemical Physics, 10.1063/1.4982219, 147, 1, 013932-013932, 2017.07. |
10. |
Takuya Horio, Roman Spesyvtsev, Kazuki Nagashima, Rebecca A. Ingle, Yoshi-ichi Suzuki, Toshinori Suzuki, Full observation of ultrafast cascaded radiationless transitions from S2(ππ∗) state of pyrazine using vacuum ultraviolet photoelectron imaging, The Journal of Chemical Physics, 10.1063/1.4955296, 145, 4, 044306-044306, 2016.07. |
11. |
Takuya Horio, Yoshi-ichi Suzuki, Toshinori Suzuki, Ultrafast photodynamics of pyrazine in the vacuum ultraviolet region studied by time-resolved photoelectron imaging using 7.8-eV pulses, The Journal of Chemical Physics, 10.1063/1.4955298, 145, 4, 044307-044307, 2016.07. |
12. |
Takufumi Kobayashi, Takuya Horio, Toshinori Suzuki, Ultrafast Deactivation of the ππ*(V) State of Ethylene Studied Using Sub-20 fs Time-Resolved Photoelectron Imaging, The Journal of Physical Chemistry A, 10.1021/acs.jpca.5b06094, 119, 36, 9518-9523, 2015.09. |
13. |
R. Spesyvtsev, T. Horio, Y.-I. Suzuki, T. Suzuki, Excited-state dynamics of furan studied by sub-20-fs time-resolved photoelectron imaging using 159-nm pulses, The Journal of Chemical Physics, 10.1063/1.4922904, 143, 1, 014302-014302, 2015.07. |
14. |
R. Spesyvtsev, T. Horio, Y.-I. Suzuki, T. Suzuki, Observation of the wavepacket dynamics on the 1B2(1Σu+) state of CS2 by sub-20 fs photoelectron imaging using 159 nm probe pulses, The Journal of Chemical Physics, 10.1063/1.4907749, 142, 7, 074308-074308, 2015.02. |
15. |
Takuya Horio, Roman Spesyvtsev, Toshinori Suzuki, Generation of sub-17 fs vacuum ultraviolet pulses at 133 nm using cascaded four-wave mixing through filamentation in Ne, Optics Letters, 10.1364/ol.39.006021, 39, 20, 6021-6021, 2014.10. |
16. |
Naoya Kurahashi, Shutaro Karashima, Ying Tang, Takuya Horio, Bumaliya Abulimiti, Yoshi-Ichi Suzuki, Yoshihiro Ogi, Masaki Oura, Toshinori Suzuki, Photoelectron spectroscopy of aqueous solutions: Streaming potentials of NaX (X = Cl, Br, and I) solutions and electron binding energies of liquid water and X−, The Journal of Chemical Physics, 10.1063/1.4871877, 140, 17, 174506-174506, 2014.05. |
17. |
Yo-ichi Yamamoto, Yoshi-Ichi Suzuki, Gaia Tomasello, Takuya Horio, Shutaro Karashima, Roland Mitríc, Toshinori Suzuki, Time- and Angle-Resolved Photoemission Spectroscopy of Hydrated Electrons Near a Liquid Water Surface, Physical Review Letters, 10.1103/physrevlett.112.187603, 112, 18, 2014.05. |
18. |
Takuya Horio, Roman Spesyvtsev, Toshinori Suzuki, Simultaneous generation of sub-20 fs deep and vacuum ultraviolet pulses in a single filamentation cell and application to time-resolved photoelectron imaging, Optics Express, 10.1364/oe.21.022423, 21, 19, 22423-22423, 2013.09. |
19. |
Peng Zuo, Takao Fuji, Takuya Horio, Shunsuke Adachi, Toshinori Suzuki, Simultaneous generation of ultrashort pulses at 158 and 198 nm in a single filamentation cell by cascaded four-wave mixing in Ar, Applied Physics B, 10.1007/s00340-012-5146-y, 108, 4, 815-819, 2012.09. |
20. |
Shunsuke Adachi, Takuya Horio, Toshinori Suzuki, Generation of intense single-order harmonic pulse in the vacuum ultraviolet region using a deep ultraviolet driving laser, Optics Letters, 10.1364/ol.37.002118, 37, 11, 2118-2118, 2012.06. |
21. |
Takuya Horio, Huan Shen, Shunsuke Adachi, Toshinori Suzuki, Photoelectron spectra of solvated electrons in bulk water, methanol, and ethanol, Chemical Physics Letters, 10.1016/j.cplett.2012.03.051, 535, 12-16, 2012.05. |
22. |
Takao Fuji, Yoshi-Ichi Suzuki, Takuya Horio, Toshinori Suzuki, Excited-State Dynamics of CS2 Studied by Photoelectron Imaging with a Time Resolution of 22 fs, Chemistry - An Asian Journal, 10.1002/asia.201100458, 6, 11, 3028-3034, 2011.11. |
23. |
Huan Shen, Shunsuke Adachi, Takuya Horio, Toshinori Suzuki, Two-color deep-ultraviolet 40-fs pulses based on parametric amplification at 100 kHz, Optics Express, 10.1364/oe.19.022637, 19, 23, 22637-22637, 2011.11. |
24. |
Yoshi-Ichi Suzuki, Takuya Horio, Takao Fuji, Toshinori Suzuki, Publisher's Note: “Time-resolved photoelectron imaging of S2 → S1 internal conversion in benzene and toluene” [J. Chem. Phys. 134, 184313 (2011)], The Journal of Chemical Physics, 10.1063/1.3633259, 135, 9, 099901-099901, 2011.09. |
25. |
Yoshi-Ichi Suzuki, Takuya Horio, Takao Fuji, Toshinori Suzuki, Time-resolved photoelectron imaging of S2 → S1 internal conversion in benzene and toluene, The Journal of Chemical Physics, 10.1063/1.3586809, 134, 18, 184313-184313, 2011.05. |
26. |
鈴木 喜一, Tang Ying, 堀尾 琢哉, 鈴木 俊法, 25aGL-10 光電子角度分布の時間・エネルギー写像を用いた、非解離性光イオン化ダイナミクスの研究(25aGL 原子分子(放射光・FEL・レーザー場),領域1(原子・分子,量子エレクトロニクス,放射線物理)), 日本物理学会講演概要集, 66, 1, 161-161, 2011.03. |
27. |
西澤 潔, 倉橋 直也, 関口 健太郎, 水野 智也, 小城 吉寛, 堀尾 琢哉, 大浦 正樹, 小杉 信博, 鈴木 俊法, 28aHB-4 液体分子線の軟X線光電子分光(28aHB 放射光真空紫外分光・MCD・光電子分光(強相関係・スピン分解・理論等),領域5(光物性)), 日本物理学会講演概要集, 66, 1, 799-799, 2011.03. |
28. |
Takao Fuji, Yoshi-Ichi Suzuki, Takuya Horio, Toshinori Suzuki, Roland Mitrić, Ute Werner, Vlasta Bonačić-Koutecký, Ultrafast photodynamics of furan, The Journal of Chemical Physics, 10.1063/1.3518441, 133, 23, 234303-234303, 2010.12. |
29. |
Kiyoshi Nishizawa, Naoya Kurahashi, Kentarou Sekiguchi, Tomoya Mizuno, Yoshihiro Ogi, Takuya Horio, Masaki Oura, Nobuhiro Kosugi, Toshinori Suzuki, High-resolution soft X-ray photoelectron spectroscopy of liquid water, Phys. Chem. Chem. Phys., 10.1039/c0cp01636e, 13, 2, 413-417, 2010.11. |
30. |
Huan Shen, Naoya Kurahashi, Takuya Horio, Kentaro Sekiguchi, Toshinori Suzuki, Direct Measurement of Vertical Electron Binding Energies of Solvated Electrons in Methanol and Ethanol, Chemistry Letters, 10.1246/cl.2010.668, 39, 7, 668-670, 2010.07. |
31. |
Yoshi-Ichi Suzuki, Takao Fuji, Takuya Horio, Toshinori Suzuki, Time-resolved photoelectron imaging of ultrafast S2→S1 internal conversion through conical intersection in pyrazine, The Journal of Chemical Physics, 10.1063/1.3395206, 132, 17, 174302-174302, 2010.05. |
32. |
S. Y. Liu, Y. Ogi, T. Fuji, K. Nishizawa, T. Horio, T. Mizuno, H. Kohguchi, M. Nagasono, T. Togashi, K. Tono, M. Yabashi, Y. Senba, H. Ohashi, H. Kimura, T. Ishikawa, T. Suzuki, Time-resolved photoelectron imaging using a femtosecond UV laser and a VUV free-electron laser, Physical Review A, 10.1103/physreva.81.031403, 81, 3, 2010.03. |
33. |
Ying Tang, Yoshi-Ichi Suzuki, Takuya Horio, Toshinori Suzuki, Molecular Frame Image Restoration and Partial Wave Analysis of Photoionization Dynamics of NO by Time-Energy Mapping of Photoelectron Angular Distribution, Physical Review Letters, 10.1103/physrevlett.104.073002, 104, 7, 2010.02. |
34. |
Takuya Horio, Takao Fuji, Yoshi-Ichi Suzuki, Toshinori Suzuki, Probing Ultrafast Internal Conversion through Conical Intersection via Time-Energy Map of Photoelectron Angular Anisotropy, Journal of the American Chemical Society, 10.1021/ja904780b, 131, 30, 10392-10393, 2009.08. |
35. |
Takuya Horio, Toshinori Suzuki, Multihit two-dimensional charged-particle imaging system with real-time image processing at 1000 frames/s, Review of Scientific Instruments, 10.1063/1.3062945, 80, 1, 013706-013706, 2009.01. |
36. |
Takao Fuji, Takuya Horio, Toshinori Suzuki, Generation of 12 fs deep-ultraviolet pulses by four-wave mixing through filamentation in neon gas, Optics Letters, 10.1364/ol.32.002481, 32, 17, 2481-2481, 2007.09. |
37. |
Masakazu Yamazaki, Takuya Horio, Naoki Kishimoto, Koichi Ohno, Determination of outer molecular orbitals by collisional ionization experiments and comparison with Hartree-Fock, Kohn-Sham, and Dyson orbitals, Physical Review A, 10.1103/physreva.75.032721, 75, 3, 2007.03. |
38. |
岸本 直樹, 赤澤 直史, Borodin Andriy, 堀尾 琢哉, 大野 公一, 21pTG-12 表面最上層の励起原子衝突2次元電子分光(表面界面構造,領域9,表面・界面,結晶成長), 日本物理学会講演概要集, 62, 1, 927-927, 2007.02. |
39. |
Takuya Horio, Satoshi Maeda, Naoki Kishimoto, Koichi Ohno, Anisotropic interaction and stereoreactivity in a chemi-ionization process of OCS by collision with He*(2(3)S) metastable atoms., The journal of physical chemistry. A, 110, 38, 11010-7, 2006.09, Ionic-state-resolved collision energy dependence of Penning ionization cross sections for OCS with He*(2(3)S) metastable atoms was measured in a wide collision energy range from 20 to 350 meV. Anisotropic interaction potential for the OCS-He*(2(3)S) system was obtained by comparison of the experimental data with classical trajectory simulations. It has been found that attractive potential wells around the O and S atoms are clearly different in their directions. Around the O atom, the collinear approach is preferred (the well depth is ca. 90 meV), while the perpendicular approach is favored around the S atom (the well depth is ca. 40 meV). On the basis of the optimized potential energy surface and theoretical simulations, stereo reactivity around the O and S atoms was also investigated. The results were discussed in terms of anisotropy of the potential energy surface and the electron density distribution of molecular orbitals to be ionized.. |
40. |
Takuya Horio, Takuro Hatamoto, Satoshi Maeda, Naoki Kishimoto, Koichi Ohno, Probing anisotropic interaction potentials of unsaturated hydrocarbons with He*(2S3) metastable atom: Attractive-site preference of σ-direction in C2H2 and π-direction in C2H4, The Journal of Chemical Physics, 10.1063/1.2178298, 124, 10, 104308-104308, 2006.03. |
41. |
Takuya Horio, Takuro Hatamoto, Satoshi Maeda, Naoki Kishimoto, Koichi Ohno, Probing anisotropic interaction potentials of unsaturated hydrocarbons with He*(2S3) metastable atom: Attractive-site preference of σ-direction in C2H2 and π-direction in C2H4, The Journal of Chemical Physics, 10.1063/1.2178298, 124, 10, 104308-104308, 2006.03. |
42. |
岸本 直樹, 山崎 優一, 半澤 義紀, 堀尾 琢哉, 大野 公一, 27pSA-5 励起原子衝突2次元電子分光法による立体反応ダイナミクスの観測と分子軌道分布の決定(27pSA 領域1シンポジウム:回転制御で探る分子反応,領域1(原子・分子,量子エレクトロニクス,放射線物理)), 日本物理学会講演概要集, 61, 1, 141-141, 2006.03. |
43. |
Takuya Horio, Masakazu Yamazaki, Satoshi Maeda, Takuro Hatamoto, Naoki Kishimoto, Koichi Ohno, Development of a cooled He*(2S3) beam source for measurements of state-resolved collision energy dependence of Penning ionization cross sections: Evidence for a stereospecific attractive well around methyl group in CH3CN, The Journal of Chemical Physics, 10.1063/1.2114808, 123, 19, 194308-194308, 2005.11. |
44. |
堀尾 琢哉, 畠本 拓郎, 前田 珪, 岸本 直樹, 大野 公一, 25aYA-4 低温励起原子ビーム源を用いた2次元電子分光による衝突電離過程の異方性の観測(原子・分子,領域1(原子・分子,量子エレクトロニクス,放射線物理)), 日本物理学会講演概要集, 60, 1, 139-139, 2005.03. |
45. |
Takuya Horio, Ryo Maruyama, Naoki Kishimoto, Koichi Ohno, A crossed-molecular beam study on collisional ionization dynamics of acetonitrile and benzene molecules with He*(23S) metastable atoms, Chemical Physics Letters, 10.1016/j.cplett.2003.12.005, 384, 1-3, 73-79, 2004.01. |
46. |
Takuya Horio, Takuro Hatamoto, Naoki Kishimoto, Koichi Ohno, Low velocity experiments for collision energy dependence of partial ionization cross-sections of C2H2 with He*(23S) metastable atoms, Chemical Physics Letters, 10.1016/j.cplett.2004.08.127, 397, 1-3, 242-246, 2004.10. |
47. |
Naoki Kishimoto, Takuya Horio, Satoshi Maeda, Koichi Ohno, Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(23S) metastable atoms, Chemical Physics Letters, 10.1016/j.cplett.2003.08.046, 379, 3-4, 332-339, 2003.09. |
48. |
岸本 直樹, 堀尾 琢哉, 丸山 涼, 美齊津 文典, 大野 公一, 31pXE-3 交差分子-励起原子線による衝突エネルギー分解ペニングイオン化電子分光, 日本物理学会講演概要集, 58, 1, 204-204, 2003.03. |
49. |
Koichi Ohno, Hideyasu Tanaka, Yoshihiro Yamakita, Ryo Maruyama, Takuya Horio, Fuminori Misaizu, Penning ionization electron spectroscopy of van der Waals clusters, Journal of Electron Spectroscopy and Related Phenomena, 10.1016/s0368-2048(00)00206-1, 112, 1-3, 115-128, 2000.11. |