加藤 政博MASAHIRO KATO
Last Updated :2025/03/03
- 所属・職名
- 放射光科学研究所 特任教授
- メールアドレス
- mkatoh
hiroshima-u.ac.jp
- 自己紹介
- 電子加速器を用いて光を作ること、その光の性質を調べること、それを制御することに興味を持って研究を行っています。
基本情報
学位
- 理学修士(東京大学) (東京大学)
- 理学博士(東北大学) (東北大学)
教育担当
- 【博士課程前期】 先進理工系科学研究科 : 先進理工系科学専攻 : 物理学プログラム
- 【博士課程後期】 先進理工系科学研究科 : 先進理工系科学専攻 : 物理学プログラム
研究キーワード
- ビーム物理学
- 粒子加速器
- 電子
- 相対論
- シンクロトロン
- シンクロトロン光
- 放射光
- アンジュレータ
- 自由電子レーザー
- コンプトン散乱
- レーザー
- テラヘルツ
- 真空紫外線
- X線
- ガンマ線
教育活動
授業担当
- 2024年, 学部専門, セメスター(前期), 卒業研究A
- 2024年, 学部専門, セメスター(後期), 卒業研究B
- 2024年, 修士課程・博士課程前期, 1ターム, 放射光科学特論A
- 2024年, 修士課程・博士課程前期, 2ターム, 放射光科学特論B
- 2024年, 修士課程・博士課程前期, 3ターム, 放射光科学院生実験
- 2024年, 修士課程・博士課程前期, セメスター(前期), 物理学演習Ⅰ
- 2024年, 修士課程・博士課程前期, セメスター(後期), 物理学演習Ⅱ
- 2024年, 修士課程・博士課程前期, セメスター(前期), 物理学特別演習A
- 2024年, 修士課程・博士課程前期, セメスター(後期), 物理学特別演習B
- 2024年, 修士課程・博士課程前期, 年度, 物理学特別研究
研究活動
学術論文(★は代表的な論文)
- Spectral phase interferometry for direct electric-field reconstruction of synchrotron radiation, OPTICA, 10巻, 2号, pp. 302-307, 20230220
- Double-pulsed wave packets in spontaneous radiation from a tandem undulator, SCIENTIFIC REPORTS, 12巻, 1号, 20220611
- Time-Domain Eddy Current and Wake Fields Analysis of Pulsed Multipole Magnet Beam Injector in Synchrotron Radiation Ring, IEICE TRANSACTIONS ON ELECTRONICS, E105C巻, 4号, pp. 146-153, 202204
- Orbital angular momentum of Liénard–Wiechert fields, Progress of Theoretical and Experimental Physics, 2019(8)巻, pp. 083A02-1-18, 2019
- pn
-type substrate dependence of
CsK2Sb
photocathode performance, Physical Review Accelerators and Beams, 20190300
- Demonstration of tomographic imaging of isotope distribution by nuclear resonance fluorescence, AIP Advances, 9巻, 3号, 20190300
- Generation of vector beam with tandem helical undulators, Applied Physics Letters, 113巻, 2号, 20180700
- Generation of Optical Vortices by Nonlinear Inverse Thomson Scattering at Arbitrary Angle Interactions, The Astrophysical Journal, 860巻, 1号, pp. 45, 20180600
- Gamma-ray vortices emitted from nonlinear inverse Thomson scattering of a two-wavelength laser beam, Physical Review A, 98巻, 5号, 20180000
- Generation of 1-MeV quasi-monochromatic gamma-ray for precise measurement of Delbrück scattering by laser Compton scattering, Journal of Physics: Conference Series, 1067巻, 9号, 20180000
- Angular Momentum of Twisted Radiation from an Electron in Spiral Motion, Physical Review Letters, 118巻, 9号, pp. 094801-1-094801-5, 20170300
- Observation of an optical vortex beam from a helical undulator in the XUV region, Journal of Synchrotron Radiation, 24巻, 5号, pp. 934-938, 20170000
- Limitations in photoionization of helium by an extreme ultraviolet optical vortex, Physical Review A, 95巻, 2号, 20170000
- Helical Phase Structure of Radiation from an Electron in Circular Motion, Scientific Reports, 7巻, 1号, 20170000
- Gamma-ray vortices from nonlinear inverse Thomson scattering of circularly polarized light, Scientific Reports, 7巻, 1号, 20170000
- Generation of High Energy Gamma-ray by Laser Compton Scattering of 1.94-m Fiber Laser in UVSOR-III Electron Storage Ring, Energy Procedia, 89巻, pp. 335-345, 20160000
- Investigation of the electrical field sensitivity of sub-μm Y-Ba-Cu-O detectors, IEEE Transactions on Applied Superconductivity, 25巻, 3号, 20150000
- Transient response of relativistic electron bunches to wave-number selected perturbations near the micro-bunching instability threshold, New Journal of Physics, 16巻, 20140000
- Microbunching Instability in Relativistic Electron Bunches: Direct Observations of the Microstructures Using Ultrafast YBCO Detectors, Physical Review Letters, 113巻, 9号, pp. 094801, 20140000
- Beam injection with pulsed multipole magnet at UVSOR-III, Nuclear Instruments and Methods in Physics Research A, 767巻, pp. 26-33, 20140000
- Saturation of the laser-induced narrowband coherent synchrotron radiation process: Experimental observation at a storage ring, Physical Review Special Topics - Accelerators and Beams, 16巻, 2号, 20130000
- Photoreaction of rac-Leucine in Ice by Circularly Polarized Synchrotron Radiation: Temperature-Induced Mechanism Swithing from Norrish Type II to Deamination, CHEMISTRY a European Journal, 19巻, 41号, pp. 13929-13936, 20130000
- Photon-induced positron annihilation lifetime spectroscopy using ultrashort laser-Compton-scattered gamma-ray pulses, Review of Scientific Instruments, 84巻, 5号, 20130000
- High-speed Y-Ba-Cu-O direct detection system for monitoring picosecond THz pulses, IEEE Transactions on Terahertz Science and Technology, 3巻, 1号, pp. 81-86, 20130000
- Design and construction of UVSOR-III, Journal of Physics: Conference Series, 425巻, PART 4号, 20130000
- Construction of the scanning transmission X-ray microscope beamline at UVSOR, Journal of Physics: Conference Series, 463巻, 1号, 20130000
- Terahertz photonics: Coherent terahertz synthesizer, Nature Photonics, 6巻, 2号, pp. 76-77, 20120000
- Suppression of self-pulsing instabilities in free-electron lasers using delayed optical feedback, Physical Review Special Topics - Accelerators and Beams, 15巻, 4号, 20120000
- Pulse width measurement of laser Compton scattered gamma rays in picosecond range, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 695巻, pp. 233-237, 20120000
- Electric field detection of coherent synchrotron radiation in a storage ring generated using laser bunch slicing, Applied Physics Letters, 100巻, 11号, pp. 111112, 20120000
- Design of a dedicated beamline for THz coherent synchrotron radiation at UVSOR-III, Journal of Physics: Conference Series, 359巻, 1号, 20120000
- Ultra-short coherent terahertz radiation from ultra-short dips in electron bunches circulating in a storage ring, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 637巻, 1 SUPPL.号, 20110000
- Generation of energy-tunable and ultrashort-pulse gamma ray via inverse Compton scattering in an electron storage ring, Nuclear Instruments and Methods in Physics Research Section A, 652巻, 1号, pp. 696-700, 20110000
- Feasibility study of ultra-short gamma ray pulse generation by laser Compton scattering in an electron storage ring, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 637巻, 1 SUPPL.号, 20110000
- Systematic study on Ce:LuLiF4 as a fast scintillator using storage ring free-electron lasers, Japanese Journal of Applied Physics, 49巻, 12号, 20100000
- Status and prospects of coherent light source developments at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 491-494, 20100000
- Remaining noise-induced spatiotemporal dynamics in a free electron laser stabilized by feedback control, European Physical Journal D, 59巻, 3号, pp. 451-455, 20100000
- Observation of saturation Effect on Vacuum Ultraviolet Coherent Harmonic Generation at UVSOR-II, Applied Physics Express, 3巻, 12号, pp. 122702-KM006350, 20100000
- Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power, Physical Review Special Topics - Accelerators and Beams, 13巻, 9号, 20100000
- Full energy injection and top-up operation at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 531-534, 20100000
- Design of terahertz pump - Photoemission probe spectroscopy beamline at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 63-65, 20100000
- Coherent synchrotron terahertz radiation using electron bunch slicing, IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide, 20100000
- Central Japan synchrotron radiation research facility project-(II), AIP Conference Proceedings, 1234巻, pp. 591-594, 20100000
- SAMRAI: A novel variably polarized angle-resolved photoemission beamline in the VUV region at UVSOR-II, Review of Scientific Instruments, 81巻, 5号, pp. 053104, 20100000
- Shifted Feedback Suppression of Turbulent Behavior in Advection-Diffusion Systems, Physical Review Letters, 102巻, 13号, pp. 134501, 20090000
- Transverse-Longitudinal Coupling Effect in Laser Bunch Slicing, Physical Review Letters, 103巻, 14号, pp. 144802, 20090000
- Observation of Synchrotron Sidebands in a Storage-Ring-Based Seeded Free-Electron Laser, Physical Review Letters, 102巻, 1号, pp. 014801, 20090000
- Chirality Emergence in Thin Solid Films of Amino Acids by Polarized Light from Synchrotron Radiation and Free Electron Laser, International Journal of Molecular Sciences, 10巻, pp. 3044, 20090000
- Tunable narrowband terahertz emission from mastered laser–electron beam interaction, Nature Physics, 4巻, 390-393号, pp. 390-393, 20080000
- Optimization of a Seeded Free-Electron Laser with Helical Undulators, Physical Review Letters, 101巻, 16号, pp. 164803, 20080000
- Local heating induced by Coherent Harmonic Generation on electron beam dynamics in storage ring, EPL, 81巻, 3号, 20080000
- Coherent Harmonic Generation Experiments on UVSOR-II Storage Ring, Nuclear Instruments and Methods in Physics Research, A 593巻, 1-5号, 20080000
- Touschek lifetime measurement withaspurious bunch in UVSOR-II electron storage ring, 8th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, DIPAC 2007, pp. 280-282, 20070000
- Present status of UVSOR-II, AIP Conference Proceedings, 879巻, pp. 192-195, 20070000
- Nagoya university photo-science nanofactory project, AIP Conference Proceedings, 879巻, pp. 75-78, 20070000
- Design of a high resolution and high flux beam line for VUV angle-resolved photoemission at UVSOR-II, AIP Conference Proceedings, 879巻, pp. 527-530, 20070000
- Intense Terahertz Synchrotron Radiation by Laser Bunch Slicing at UVSOR-II Electron Storage Ring, Japanese Journal of Applied Physics, 46巻, 12号, pp. 7939-7944, 20070000
- Coherent terahertz radiation at UVSOR-II, AIP Conference Proceedings, 879巻, pp. 71-74, 20070000
- Coherent harmonic generation at UVSOR-II storage ring, The European Physical Journal D, 44巻, 1号, pp. 187-200, 20070000
- Touschek lifetime measurement with a spurious bunch in single bunch operation in the UVSOR-II electron storage ring, Nuclear Instruments and Methods in Physics Research A, 572巻, 3号, pp. 1033-1041, 20070000
- Measurements of threshold photoemission magnetic dichroism using ultraviolet lasers and a photoelastic modulator, Review of Scientific Instruments, 78巻, pp. 023907, 20070000
- Infrared and terahertz spectromicroscopy beam line BL6B(IR) at UVSOR-II, Infrared Physics and Technology, 49巻, 1-2号, pp. 147-151, 20060000
- Longitudinal and transverse heating of a relativistic electron bunch induced by a storage ring free electron laser, Physical Review Special Topics Accelerators and Beams, 9巻, pp. 100701, 20060000
- Observation of intense bursts of terahertz synchrotron radiation at UVSOR-II, Japanese Journal of Applied Physics, Part 2: Letters, 44巻, 33-36号, 20050000
- Ion Trapping Phenomenon in UVSOR Electron Storage Ring, Japanese Journal of Applied Physics, Vol. 44, No. 1A, pp. 430-437巻, 20050000
- Construction of the undulator beamline equipped with a UHV-STM for observations of synchrotron-radiation-stimulated surface reaction, Journal of Electron Spectroscopy and Related Phenomena, 144-147 1113-1116巻, 20050000
- Status and prospects of user applications of the UVSOR storage ring free electron laser, AIP Conference Proceedings, 705巻, pp. 61-64, 20040000
- New infrared and terahertz beam line BL6B at UVSOR, AIP Conference Proceedings, 705巻, pp. 416-419, 20040000
- In-vacuum undulators in UVSOR electron storage ring, AIP Conference Proceedings, 705巻, pp. 259-262, 20040000
- Design and performance of undulator beamline (BL7U) for in-situ observation of synchrotron radiation stimulated etching by STM, AIP Conference Proceedings, 705巻, pp. 368-371, 20040000
- Construction and commissioning of UVSOR-II, AIP Conference Proceedings, 705巻, pp. 49-52, 20040000
- The investigation of excited states of Xe atoms and dimmers by synchronization of FEL and SR pulses at UVSOR, Nuclear Instruments and Methods in Physics Research A, 528, 627-631巻, 20040000
- Upgrade of the UVSOR storage ring FEL, Nuclear Instruments and Methods in Physics Research A, 528, 291-295巻, 20040000
- Q-switching Operation of the UVSOR-FEL, Nuclear Instruments and Methods in Physics Research A, 507, 289-293巻, 20030000
- From the operation of an SRFEL to a users facility, Nuclear Instruments and Methods in Physics Research A, 483巻, pp. 146-151, 20020000
- Design study of a storage ring light source at Tohoku University, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 467-468巻, pp. 72-75, 20010000
- New Lattice for UVSOR, Nuclear Instruments and Methods in Physics Research A, 467-468巻, pp. 68-71, 20010000
- Bunch lengthening in compact SR source HiSOR, Nuclear Instruments and Methods in Physics Research A, 467-468巻, pp. 95-98, 20010000
- Development of longitudinal feedback system for a storage ring free electron laser, Nuclear Instruments and Methods in Physics Research A, 475巻, pp. 211-216, 20010000
- FEL induced electron bunch heating observed by a method based on synchrotron phase detection, Nuclear Instruments and Methods in Physics Research A, 475巻, pp. 217-221, 20010000
- Ultra-short Pulses of Synchrotron Radiation on Storage Rings, Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 38巻, 5 PART 2号, pp. 547549, 19990000
- Reconstruction for the brilliance-upgrading project of the Photon Factory storage ring, Journal of Synchrotron Radiation, 5巻, 3号, pp. 366-368, 19980000
- Single-pass BPM system of the Photon Factory storage ring, Journal of Synchrotron Radiation, 5巻, 3号, pp. 618-620, 19980000
- Design of a synchrotron radiation source at Tohoku University, Journal of Synchrotron Radiation, 5巻, 3号, pp. 339-341, 19980000
- Dynamic aperture for high-brilliance optics of the photon factory storage ring, Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 36巻, 12 A号, pp. 7415-7426, 19970000
- "Dynamic Aperture for High Brilliance Optics of the Photon Factory Storage Ring"(共著), Jpn. J. Appl. Phys., 36巻, 12A号, pp. 7415-7426, 19970000
- "Upgrade of the Photon Factory storage ring for a high brilliance configuration"(共著), Rev. Sci. Instrum., 66巻, 2 Pt 2号, pp. 1892-1894, 19950000
- "Characteristics of the Five-pole Superconducting Vertical Wiggler at the Photon Factory"(共著), Review of Scientific Instruments, 63巻, 1 Pt 2A号, pp. 301-304, 19920000
- "Improvement of beam lifetime by Optics Modification at the Photon Factory Storage Ring"(共著), Rev. Sci. Instrum., 63巻, 2号, pp. 1731-1735, 19920000
- "Global Orbit Feedback System at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1795, 19900000
- "Effects of Insertion Devices on Beam Emittances at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1807, 19900000
- "Correction of Tune Shifts and Distortions of Betatron Functions produced by the Insertion Devices at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1813, 19900000
- "Measurement of Transverse Instability Thresholds in Low and High Emittance Optics at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1783, 19900000
- "Ginga X-ray Observations of two gamma-ray burst error boxes"(共著), Astron. Astrophys., 227巻, pp. 451, 19900000
- "Positron Beams for the PF Storage Ring"(共著), Particle Accelerators, 30巻, pp. 385, 19900000
- "Dynamic Aperture of the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 495, 19900000
- "Accumulation of Positrons into the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1777, 19900000
- "Beam Position Stabilization at the Photon Factory"(共著), Rev. Sci. Instrum., 60巻, 7 Pt.2A号, pp. 1507-1512, 19890000
- "Construction and Poeration of the Multipole Wiggler, MPW#16 at the Photon Factory"(共著), Rev. Sci. Instru., 60巻, 7 Pt.2A号, pp. 1855-1858, 19890000
- Observation of a Cosmic Gamma-ray Burst on Hakucho, AIP Conf. Proc., 115巻, pp. 390-392, 19840000
- Coherent control in the extreme ultraviolet and attosecond regime by synchrotron radiation, Nature Communications, 10巻, 4988号, 20191101
- Controlling the Orbital Alignment in Atoms Using Cross-Circularly Polarized Extreme Ultraviolet Wave Packets, Physical Review Letters, 123巻, pp. 233401-1-5, 201912
招待講演、口頭・ポスター発表等
- Optical vortex emitted from free electrons in nature, Masahiro Katoh, SPIE Conference 11099: Light in Nature VII, SPIE Optical Engineering + Applications, 2019年08月13日, 通常, 英語, SPIE, The international society for optics and photonics, San Diego convention center, San Diego, California United States
社会活動
委員会等委員歴
- シンクロトロン光研究センター招へい教員, 2021年04月, 2022年03月, 名古屋大学
- 加速器・共通基盤研究施設運営会議委員, 2021年04月, 2023年03月, 高エネルギー加速器研究機構
- 客員研究員, 2021年04月, 2022年03月, 高エネルギー加速器研究機構
- 客員研究員, 2020年04月, 2021年03月, 高エネルギー加速器研究機構
- 評議員, 2019年10月, 2021年09月, 日本放射光学会
- 加速器・共通基盤研究施設運営会議委員, 2019年04月, 2021年03月, 高エネルギー加速器研究機構
- 客員研究員, 2019年04月, 2020年03月, 高エネルギー加速器研究機構
- 共同利用・共同研究計画委員会委員, 2019年04月, 2021年03月, 京都大学エネルギー理工学研究所
- 評議員, 2016年00月00日, 2017年00月00日, 日本加速器学会
- 評議員, 2014年00月00日, 2015年00月00日, 日本加速器学会
- 評議員, 2014年00月00日, 2018年00月00日, 日本放射光学会
- 評議員, 2010年00月00日, 2012年00月00日, 日本放射光学会
- 評議員, 2008年00月00日, 2009年00月00日, 日本加速器学会
- 評議員, 2006年00月00日, 2009年00月00日, 日本放射光学会