加藤 政博MASAHIRO KATOH

Last Updated :2020/02/03

所属・職名
放射光科学研究センター放射光科学研究センター教授
メールアドレス
mkatohhiroshima-u.ac.jp

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)

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

  1. 2019年, 学部専門, セメスター(前期), 卒業研究A
  2. 2019年, 学部専門, セメスター(後期), 卒業研究B
  3. 2019年, 修士課程・博士課程前期, セメスター(前期), 物理科学特別研究
  4. 2019年, 修士課程・博士課程前期, セメスター(後期), 物理科学特別研究
  5. 2019年, 修士課程・博士課程前期, セメスター(後期), 放射光物理学
  6. 2019年, 修士課程・博士課程前期, セメスター(前期), 放射光物理学セミナー
  7. 2019年, 修士課程・博士課程前期, セメスター(後期), 放射光物理学セミナー

研究活動

学術論文(★は代表的な論文)

  1. Controlling the Orbital Alignment in Atoms Using Cross-Circularly Polarized Extreme Ultraviolet Wave Packets, Physical Review Letters, 123巻, pp. 233401-1-5
  2. Coherent control in the extreme ultraviolet and attosecond regime by synchrotron radiation, Nature Communications, 10巻, 4988号, 2019,11,1
  3. Orbital angular momentum of Liénard–Wiechert fields, Progress of Theoretical and Experimental Physics, 2019(8)巻, pp. 083A02-1-18
  4. pn -type substrate dependence of CsK2Sb photocathode performance, Physical Review Accelerators and Beams, 20190300
  5. Demonstration of tomographic imaging of isotope distribution by nuclear resonance fluorescence, AIP Advances, 9巻, 3号, 20190300
  6. Generation of vector beam with tandem helical undulators, Applied Physics Letters, 113巻, 2号, 20180700
  7. Generation of Optical Vortices by Nonlinear Inverse Thomson Scattering at Arbitrary Angle Interactions, The Astrophysical Journal, 860巻, 1号, pp. 45, 20180600
  8. Gamma-ray vortices emitted from nonlinear inverse Thomson scattering of a two-wavelength laser beam, Physical Review A, 98巻, 5号, 20180000
  9. 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
  10. Angular Momentum of Twisted Radiation from an Electron in Spiral Motion, Physical Review Letters, 118巻, 9号, pp. 094801-1-094801-5, 20170300
  11. 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
  12. Limitations in photoionization of helium by an extreme ultraviolet optical vortex, Physical Review A, 95巻, 2号, 20170000
  13. Helical Phase Structure of Radiation from an Electron in Circular Motion, Scientific Reports, 7巻, 1号, 20170000
  14. Gamma-ray vortices from nonlinear inverse Thomson scattering of circularly polarized light, Scientific Reports, 7巻, 1号, 20170000
  15. 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
  16. Investigation of the electrical field sensitivity of sub-μm Y-Ba-Cu-O detectors, IEEE Transactions on Applied Superconductivity, 25巻, 3号, 20150000
  17. Transient response of relativistic electron bunches to wave-number selected perturbations near the micro-bunching instability threshold, New Journal of Physics, 16巻, 20140000
  18. 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
  19. Beam injection with pulsed multipole magnet at UVSOR-III, Nuclear Instruments and Methods in Physics Research A, 767巻, pp. 26-33, 20140000
  20. 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
  21. 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
  22. Photon-induced positron annihilation lifetime spectroscopy using ultrashort laser-Compton-scattered gamma-ray pulses, Review of Scientific Instruments, 84巻, 5号, 20130000
  23. 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
  24. Design and construction of UVSOR-III, Journal of Physics: Conference Series, 425巻, PART 4号, 20130000
  25. Construction of the scanning transmission X-ray microscope beamline at UVSOR, Journal of Physics: Conference Series, 463巻, 1号, 20130000
  26. Terahertz photonics: Coherent terahertz synthesizer, Nature Photonics, 6巻, 2号, pp. 76-77, 20120000
  27. 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
  28. 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
  29. 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
  30. Design of a dedicated beamline for THz coherent synchrotron radiation at UVSOR-III, Journal of Physics: Conference Series, 359巻, 1号, 20120000
  31. 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
  32. 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
  33. 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
  34. 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
  35. Status and prospects of coherent light source developments at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 491-494, 20100000
  36. 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
  37. Observation of saturation Effect on Vacuum Ultraviolet Coherent Harmonic Generation at UVSOR-II, Applied Physics Express, 3巻, 12号, pp. 122702-KM006350, 20100000
  38. Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power, Physical Review Special Topics - Accelerators and Beams, 13巻, 9号, 20100000
  39. Full energy injection and top-up operation at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 531-534, 20100000
  40. Design of terahertz pump - Photoemission probe spectroscopy beamline at UVSOR-II, AIP Conference Proceedings, 1234巻, pp. 63-65, 20100000
  41. Coherent synchrotron terahertz radiation using electron bunch slicing, IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide, 20100000
  42. Central Japan synchrotron radiation research facility project-(II), AIP Conference Proceedings, 1234巻, pp. 591-594, 20100000
  43. 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
  44. Shifted Feedback Suppression of Turbulent Behavior in Advection-Diffusion Systems, Physical Review Letters, 102巻, 13号, pp. 134501, 20090000
  45. Transverse-Longitudinal Coupling Effect in Laser Bunch Slicing, Physical Review Letters, 103巻, 14号, pp. 144802, 20090000
  46. Observation of Synchrotron Sidebands in a Storage-Ring-Based Seeded Free-Electron Laser, Physical Review Letters, 102巻, 1号, pp. 014801, 20090000
  47. 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
  48. Tunable narrowband terahertz emission from mastered laser–electron beam interaction, Nature Physics, 4巻, 390-393号, pp. 390-393, 20080000
  49. Optimization of a Seeded Free-Electron Laser with Helical Undulators, Physical Review Letters, 101巻, 16号, pp. 164803, 20080000
  50. Local heating induced by Coherent Harmonic Generation on electron beam dynamics in storage ring, EPL, 81巻, 3号, 20080000
  51. Coherent Harmonic Generation Experiments on UVSOR-II Storage Ring, Nuclear Instruments and Methods in Physics Research, A 593巻, 1-5号, 20080000
  52. 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
  53. Present status of UVSOR-II, AIP Conference Proceedings, 879巻, pp. 192-195, 20070000
  54. Nagoya university photo-science nanofactory project, AIP Conference Proceedings, 879巻, pp. 75-78, 20070000
  55. 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
  56. 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
  57. Coherent terahertz radiation at UVSOR-II, AIP Conference Proceedings, 879巻, pp. 71-74, 20070000
  58. Coherent harmonic generation at UVSOR-II storage ring, The European Physical Journal D, 44巻, 1号, pp. 187-200, 20070000
  59. 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
  60. Measurements of threshold photoemission magnetic dichroism using ultraviolet lasers and a photoelastic modulator, Review of Scientific Instruments, 78巻, pp. 023907, 20070000
  61. Infrared and terahertz spectromicroscopy beam line BL6B(IR) at UVSOR-II, Infrared Physics and Technology, 49巻, 1-2号, pp. 147-151, 20060000
  62. 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
  63. 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
  64. Ion Trapping Phenomenon in UVSOR Electron Storage Ring, Japanese Journal of Applied Physics, Vol. 44, No. 1A, pp. 430-437巻, 20050000
  65. 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
  66. Status and prospects of user applications of the UVSOR storage ring free electron laser, AIP Conference Proceedings, 705巻, pp. 61-64, 20040000
  67. New infrared and terahertz beam line BL6B at UVSOR, AIP Conference Proceedings, 705巻, pp. 416-419, 20040000
  68. In-vacuum undulators in UVSOR electron storage ring, AIP Conference Proceedings, 705巻, pp. 259-262, 20040000
  69. 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
  70. Construction and commissioning of UVSOR-II, AIP Conference Proceedings, 705巻, pp. 49-52, 20040000
  71. 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
  72. Upgrade of the UVSOR storage ring FEL, Nuclear Instruments and Methods in Physics Research A, 528, 291-295巻, 20040000
  73. Q-switching Operation of the UVSOR-FEL, Nuclear Instruments and Methods in Physics Research A, 507, 289-293巻, 20030000
  74. From the operation of an SRFEL to a users facility, Nuclear Instruments and Methods in Physics Research A, 483巻, pp. 146-151, 20020000
  75. 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
  76. New Lattice for UVSOR, Nuclear Instruments and Methods in Physics Research A, 467-468巻, pp. 68-71, 20010000
  77. Bunch lengthening in compact SR source HiSOR, Nuclear Instruments and Methods in Physics Research A, 467-468巻, pp. 95-98, 20010000
  78. 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
  79. 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
  80. 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
  81. Reconstruction for the brilliance-upgrading project of the Photon Factory storage ring, Journal of Synchrotron Radiation, 5巻, 3号, pp. 366-368, 19980000
  82. Single-pass BPM system of the Photon Factory storage ring, Journal of Synchrotron Radiation, 5巻, 3号, pp. 618-620, 19980000
  83. Design of a synchrotron radiation source at Tohoku University, Journal of Synchrotron Radiation, 5巻, 3号, pp. 339-341, 19980000
  84. 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
  85. "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
  86. "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
  87. "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
  88. "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
  89. "Global Orbit Feedback System at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1795, 19900000
  90. "Effects of Insertion Devices on Beam Emittances at the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1807, 19900000
  91. "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
  92. "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
  93. "Ginga X-ray Observations of two gamma-ray burst error boxes"(共著), Astron. Astrophys., 227巻, pp. 451, 19900000
  94. "Positron Beams for the PF Storage Ring"(共著), Particle Accelerators, 30巻, pp. 385, 19900000
  95. "Dynamic Aperture of the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 495, 19900000
  96. "Accumulation of Positrons into the Photon Factory Storage Ring"(共著), Particle Accelerators, 30巻, pp. 1777, 19900000
  97. "Beam Position Stabilization at the Photon Factory"(共著), Rev. Sci. Instrum., 60巻, 7 Pt.2A号, pp. 1507-1512, 19890000
  98. "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
  99. Observation of a Cosmic Gamma-ray Burst on Hakucho, AIP Conf. Proc., 115巻, pp. 390-392, 19840000

招待講演、口頭・ポスター発表等

  1. 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