Shinichi Namba

Last Updated :2025/04/03

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor
E-mail
nambahiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Doctor of Engineering, Nagoya University
  • Master of Engineering, Nagoya University

Research Fields

  • Mathematical and physical sciences;Plasma science;Plasma science

Research Keywords

  • plasma spectroscopy
  • atomic process
  • X-ral laser

Affiliated Academic Societies

  • The Japan Society of Plasma Science and Nuclear Fusion Research
  • The laser Society of Japan

Educational Activity

Course in Charge

  1. 2025, Undergraduate Education, 2Term, Introduction to chemical physics
  2. 2025, Undergraduate Education, 4Term, Introduction to Quantum Physics
  3. 2025, Undergraduate Education, First Semester, Experiments in Mechanical Engineering I
  4. 2025, Undergraduate Education, 2Term, Plasma Engineering
  5. 2025, Undergraduate Education, 4Term, Optical Measurement Techniques
  6. 2025, Undergraduate Education, Year, Graduation Thesis
  7. 2025, Graduate Education (Master's Program) , 1Term, Special Exercises on Mechanical Engineering A
  8. 2025, Graduate Education (Master's Program) , 2Term, Special Exercises on Mechanical Engineering A
  9. 2025, Graduate Education (Master's Program) , 3Term, Special Exercises on Mechanical Engineering B
  10. 2025, Graduate Education (Master's Program) , 4Term, Special Exercises on Mechanical Engineering B
  11. 2025, Graduate Education (Master's Program) , Academic Year, Special Study on Mechanical Engineering
  12. 2025, Graduate Education (Master's Program) , 4Term, Advanced Plasma Engineering
  13. 2025, Graduate Education (Doctoral Program) , Academic Year, Special Study on Mechanical Engineering

Research Activities

Academic Papers

  1. Production of highly-charged ions by nitrogen gas target irradiated with ultrashort high-intensity pulse laser, Int. J. Appl. Electromag. Mechanics, 14, 277-282, 20021201
  2. Demonstration of a Transient High Gain Soft X-Ray Laser for Neon-Like Argon, Jpn. J. Appl. Phys., 41, L133-135, 20020501
  3. Gain saturation of nickel-like silver and tin x-ray lasers by use of a table top pumping laser system, Phys. Rev. A, 66, 033815, 20020401
  4. Charge exchange recombination in a Non-equilibrium plasma dut to an interaction of ultra-short pulse laser and cluster, Japan Atomic Energy Research Institute= Conf, 008, 190-193, 20030701
  5. Charge exchange recombination in a non-equilibrium plasma due to an interaction of ultra-short pulse laser and cluster, Japan Atomic Energy Research Institute= Conf, 009, 115-118, 20040401
  6. Development of supersonic metastable helium pulsed beam source for plasma diagnostics, Jpn. J. Appl. Phys., 45(10B), 20061001
  7. Spectroscopic study of debris mitigation with minimum-mass Sn laser-plasma for extreme ultraviolet lithography, Appl. Phys. Lett=, 88, 151503, 20060401
  8. Spectroscopic study of ablation and recombination processes in a laser-produced ZnO plasma, J. Appl. Phys., 99, 073302, 20060401
  9. ★, Efficient Electron Heating in Nitrogen Clusters Irradiated with Intense Femtosecond Laser Pulse, Phys. Rev. A, 73, 013205, 20060101
  10. A short-pulsed compact supersonic helium beam source for plasma diagnostics, Plasma Device and Operations, 14, 81, 20060101
  11. Fast numerical calculation for a set of nonlinear rate equations: application to rapid ionization phase in plasma, Jpn. J. Appl. Phys., 44, 8118, 20051001
  12. Effect of discharge current and voltage on the high density of metastable helium atoms, Chinese Physics, 12(5), 495, 20030401
  13. High-density metastable helium atoms produced by Penning-type discharges, Plasma Sources Sci. Technol., 12, 142, 20030401
  14. Demonstration of a Transient High Gain Soft X-Ray Laser for Neon-Like Argon, Jpn. J. Appl. Phys., 41, L133, 20020401
  15. Spectroscopic Observation of Highly-Charged Ions Produced by Cluster Target, Proceedings of the 2nd Symposium on Advanced Photon Research, 118, 20011001
  16. Charge exchange recombination x-ray laser in a cluster plasma produced by an ultra-short high intensity pulse laser, X-RAY LASERS 2004, 481, 20040401
  17. Higher harmonic generation for the high coherent x-ray laser, Proceedings of SPIE, 4505, 204, 20010401
  18. X-ray laser research at Advanced Photon Research Center of JAERI, Kansai, Proceedings of SPIE, 4505, 54, 20010401
  19. Demonstration of Transient Collisional Excitation X-Ray Lasers in Gases, AIP Conference Proceedings, 634, 241, 20021001
  20. ★, Enhancement of Double Auger Decay Probability in Xenon Clusters Irradiated with a Soft X-ray Laser pulse, Physical Review Letters, 99, 043004, 20070731
  21. Photoionized Xeon Cluster Plasmas Generated by a Soft X-ray Laser Pulse, Journal of Physics: Conference series, 112, 042057, 20080601
  22. Characterization of out-of-band radiation and plasma parameters in laser-produced Sn plasmas for extreme ultraviolet lithography light sources, Journal of Applied Physics, 104, 013305, 20080714
  23. Absolute evaluation of out-of-band radiation from laser produced Sn plasma for extreme ultraviolet lithography application, Applied Physics Letters, 92, 11503, 20080321
  24. Time-of-Flight Measurements of Ion and Electron from Xenon Clusters Irradiated with a Soft X-ray Laser Pulse, X-Ray Laser 2008, 20080930
  25. Transition from Thermal to Recombining Plasma in a Free Expanding Arc Jet Plasma GeneratorS. Namba, K. Nakamura, K. Yashio, S. Furukawa,, K. Takiyama, K. Sato, J. Plasma and Fusion Res. Series, 8, 1348-1352, 20090801
  26. Intensity and polarization of laser-induced fluorescence due to forbidden excitation of He atoms immersed in an electric field in plasmas, Phys. Rev. E, 79, 026402, 20090401
  27. Spatially-resolved spectroscopic study of arcjet helium plasmas expanding through a rectangular-shaped converging-diverging nozzle, Jpn. J. Appl. Phys., 48, 116005, 20091101
  28. Two-dimensional spatial temperature and density measurements in an arcjet plasma expanding through a slit nozzle, Plasma and Fusion Research, 6, 2406054, 20110701
  29. ★, Emission spectroscopy of a microhollow cathode discharge plasma in helium-water gas mixtures, J. Appl. Phys., 110, 073307, 20111001
  30. ★, Electron spectra of xenon clusters irradiated with a laser-driven plasma soft-x-ray laser pulse, Phys. Rev. A, 84, 053202, 20111101
  31. Effect of Disalignment due to Electron Collision on Laser-Induced Fluorescence Polarization Spectroscopy for Measuring Electric Field in Plasmas, Jpn. J. Appl. Phys., 47(11), 8570-8575, 20081001
  32. Novel atmospheric pressure plasma device releasing atomic hydrogen: reduction of microbial-contaminants and OH radicals in the air, Journal of Physics D: Appl. Phys., 40, 501, 20070101
  33. Spectroscopic Observation of a Helium Plasma Cooled by a Hydrogen Gas Injection, J. Nucl. Mater., 266-269, 1157-1160, 19990201
  34. Observation of OH radical reactions with atomic hydrogen in He/H2O plasmas by laser-induced fluorescence spectroscopy, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 45(10B), 8260-8263, 200610
    Link to Paper Search Results by DOI
  35. Intensity and polarization of laser-induced fluorescence due to forbidden excitation of He atoms immersed in an electric field in plasmas, PHYSICAL REVIEW E, 79(2), 200902
    Link to Paper Search Results by DOI
  36. Effect of Cathode Length on Electrical Characteristics of a Microhollow Cathode Discharge in Helium, JAPANESE JOURNAL OF APPLIED PHYSICS, 51(6), 201206
    Link to Paper Search Results by DOI
  37. Pressure Dependences of Gas Temperature and Electron Density in Microhollow Cathode Discharges in He and He+H2O Gases, JAPANESE JOURNAL OF APPLIED PHYSICS, 51(12), 201212
    Link to Paper Search Results by DOI
  38. Spectroscopic Measurement of Shock Waves in an Arcjet Plasma Expanding Through a Conical Nozzle, PLASMA SCIENCE & TECHNOLOGY, 15(2), 89-92, 20130201
    Link to Paper Search Results by DOI
  39. Characterization of a Microhollow Cathode Discharge Plasma in Helium or Air with Water Vapor, PLASMA SCIENCE & TECHNOLOGY, 15(2), 129-132, 20130201
    Link to Paper Search Results by DOI
  40. Parametric amplification of attosecond pulse trains at 11 nm, SCIENTIFIC REPORTS, 4, 20140503
    Link to Paper Search Results by DOI
  41. Measurements of localized potential profiles by LIF polarization spectroscopy in an inertial-electrostatic confinement discharge, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 65(8), 1205-1208, 20141001
    Link to Paper Search Results by DOI
  42. Investigation of a shock wave in an arcjet He plasma by using an electric probe and emission spectroscope, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 65(8), 1252-1256, 20141001
    Link to Paper Search Results by DOI
  43. Cathode sheath thickness of a microhollow cathode discharge plasma in argon high gas pressures, Engineering Journal 17, pp1-6, 2013
  44. Dependence of supersonic nozzle shapes on plasma plugging effect in an arcjet, CD-ROM(C11), 4 pages, 201312
  45. Development of versatile molecular beam mass spectrometer for atmospheric pressure plasmas in He+H2O mixtures, CD-ROM(C23), 4 pages, 201312
  46. Investigation of shock cell formed in an arcjet helium plasma by a double probe measurement, CD-ROM(D43), 4 pages, 201312
  47. Mass Spectrometry Study of Reactive Species in a Microhollow Cathode Discharge in He+H2O Mixtures, Engineering Journal 17, pp.29-34, 2013
  48. Measurement of electric field in a helium micro hollow cathode discharge plasma by forbidden transition, CD-ROM(D51 ), 4 pages, 201312
  49. Measurements of localized electrostatic potential profiles in He discharge plasmas by LIF polarization spectroscopy, CD-ROM(C14), 4 pages, 201312
  50. Spectroscopic observation of He arcjet plasma expanding through a converging and diverging slit nozzle, Engineering Journal 17, pp7-12, 2013
  51. Spectroscopic observation of He arcjet plasma expanding through a converging and diverging slit nozzle, CD-ROM(D34), 4 pages, 20131231
  52. Spatially Resolved Absorption Spectroscopy on a Microhollow Cathode Helium Plasma Using a Vertical-Cavity Surface-Emitting Laser, Plasma Fusion Res., 10, 3406063, 20150530
  53. Pump-probe experiment for temporal profile measurement of plasma x-ray laser, Springer Proc. in Phys., 169, 95-102, 20150627
  54. Construction of a magnetic bottle spectrometer and its application to pulse duration measurement of X-ray laser using a pump-probe method, AIP ADVANCES, 5(11), 117101, 201511
    Link to Paper Search Results by DOI
  55. Reinjection of transmitted laser light into laser-produced plasma for efficient laser ignition, APPLIED OPTICS, 55(5), 1132-1137, 20160210
    Link to Paper Search Results by DOI
  56. Avalanche of stimulated forward scattering in high harmonic generation, OPTICS EXPRESS, 24(8), 8028-8044, 20160418
    Link to Paper Search Results by DOI
  57. DEVELOPMENT OF A CASCADE ARC DISCHARGE SOURCE FOR AN ATMOSPHERE-VACUUM INTERFACE DEVICE, Review of Scientific Instruments, 87, 083503, 20160810
    Link to Paper Search Results by DOI
  58. Electric probe measurement of an arcjet plasma in high gas pressures, PST-15, 20150810
  59. Spatially Resolved Absorption Spectroscopy on a Microhollow Cathode Helium Plasma Using a Vertical-Cavity Surface-Emitting Laser, Plasma Fusion Res., 10, 3406063-3406063, 20151010
  60. Core-level attosecond transient absorption spectroscopy of laser-dressed solid films of Si and Zr, Phys. Rev. B, 94, 165125-165125, 20160810
  61. Development of a cascade arc discharge source for an atmosphere-vacuum interface device, REVIEW OF SCIENTIFIC INSTRUMENTS, 87(8), 201608
    Link to Paper Search Results by DOI
  62. Physics book: CRYRING@ESR, EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 225(5), 797-882, 201609
    Link to Paper Search Results by DOI
  63. Core-level attosecond transient absorption spectroscopy of laser-dressed solid films of Si and Zr, PHYSICAL REVIEW B, 94(16), 20161012
    Link to Paper Search Results by DOI
  64. Measurement of Ion Mach Number of Arcjet Plasmas by a Directional Langmuir Probe Under High-Gas Pressure, IEEE TRANSACTIONS ON PLASMA SCIENCE, 45(3), 485-488, 201703
    Link to Paper Search Results by DOI
  65. Numerical Study of Spectral Line Shapes in High-Density He Plasmas, Plasma Fusion Research, 11, 2401124, 20160510
  66. An experimental study on the ignition ability of a laser-induced gaseous breakdown, Combustion and Flame, 178, 1-6, 20170118
  67. Numerical Study of Spectral Line Shapes in High-Density He Plasmas, PLASMA AND FUSION RESEARCH, 11, 2016
    Link to Paper Search Results by DOI
  68. Laser absorption spectroscopy for measurement of He metastable atoms of a microhollow cathode plasma, JAPANESE JOURNAL OF APPLIED PHYSICS, 57, 201801
    Link to Paper Search Results by DOI
  69. Comparative study of laser ignition and spark-plug ignition in high-speed flows, COMBUSTION AND FLAME, 191, 408-416, 201805
    Link to Paper Search Results by DOI
  70. Characteristics of an under-expanded supersonic flow in arcjet plasmas, JAPANESE JOURNAL OF APPLIED PHYSICS, 57(6), 201806
    Link to Paper Search Results by DOI
  71. Attosecond sublevel beating and nonlinear dressing on the 3d-to-5p and 3p-to-5s core-transitions at 91.3 eV and 210.4 eV in krypton, OPTICS EXPRESS, 25(25), 31774-31788, 20171211
    Link to Paper Search Results by DOI
  72. An experimental study on the ignition ability of a laser-induced gaseous breakdown, Combustion and Flame, 178, 1, 20170118
  73. Investigation of a large diameter He cascade arc plasma by vacuum-UV and visible emission spectroscopy, 46, 2626-2629, 20180401
  74. Generation of a Large Diameter He Cascade Arc Plasma for a Plasma Window Application, IEEE TRANSACTIONS ON PLASMA SCIENCE, 46(7), 2626-2629, 201807
    Link to Paper Search Results by DOI
  75. Emission of water-window soft x-rays under optically thin conditions using low-density foam targets, OPTICS LETTERS, 43(15), 3750-3753, 20180801
    Link to Paper Search Results by DOI
  76. Spectral dynamics of soft X-ray emission in dual-laser-produced medium-Z plasma, APPLIED PHYSICS B-LASERS AND OPTICS, 124(10), 201810
    Link to Paper Search Results by DOI

Invited Lecture, Oral Presentation, Poster Presentation

  1. Effects of Equation of State on fluid simulations for laser-produced plasmas, C. Ikeda, A. Sunahara, S. Namba, International Conference on X-ray Laser, 2016/05/22, Without Invitation, English, Nara
  2. Coherent plasma x-ray laser by injection of a parametrically amplified high-order harmonic light, S. Namba, J. Seres, E. Seres, C. Serrat, T. Kuehl, C. Spielmann, M. Kishimoto, N. Hasegawa, M. Nishikino, International Conference on X-ray Laser, 2016/05/22, Without Invitation, English, Nara, Japan
  3. Numerical Calculation of Gain Coefficients of Recombination X-Ray Laser in a Cluster Plasma, H. Kawazome, S. Namba, International Conference on X-ray Laser, 2016/05/22, Without Invitation, English
  4. Measurement of pulse width of a soft x-ray laser by pump-probe method, S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino and T. Kawachi, JEAE, The 15th Symposium on Advanced Photon Reserch, 2015/11/13, Without Invitation, Japanese, JAEA, Kyoto, Kizugawa
  5. Pump-Probe Spectroscopy for Temporal Characterization of Laser-Plasma XUV Pulses, S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino and T. Kawachi, European Physcal Society on Plasma Diagnostics, 2015/04/17, With Invitation, English, EPS, Italy, Frascati
  6. Electron energy spectrum from Xe atom irradiated with a plasma x-ray laser , S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino, JPS Annual meeting, 2015/03/21, Without Invitation, Japanese, JPS, Tokyo, Waseda Univ.
  7. Measurement of electron temperature and density in a laser produced Fe plasma by emission spectroscopy, C. Ikeda, L. Matsuoka, S. Namba, JPS Annual meeting, 2015/03/21, Without Invitation, Japanese, JPS, Tokyo, Waseda Univ.
  8. Electric probe measurement of plasma parameters in an expanding arcjet He plasma, W. Sasano, K. Kozue, L. Matsuok2, T. Endo, N. Tamura and S. Namba, JCREN 2014, 2014/12/22, Without Invitation, English, JCREN organizing committee, Mahidol University
  9. Spatiotemporal distributions of plasma parameters on a laser ablation Fe plasma, C. Ikeda, Leo Matsuoka and Shinichi Namba, JCREN 2014, 2014/12/22, Without Invitation, English, JCREN organizing committee, Mahidol University
  10. Development of high-temperature and high-density plasma source by a cascade arc discharge, S. Namba, Shuhei Fujino, Kazuki Kozue, Leo Matsuoka, Takuma Endo and Naoki Tamura, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  11. Observation of bright and dark emission structures formed in an expanding arcjet plasma , K. Kozue, Ginga Kumagawa, Leo Matsuoka, Takuma Endo, Naoki Tamura, Shinichi Namba, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  12. Multi-emission line high-resolution plasma spectroscopy on a micro-hollow cathode atmospheric-pressure helium discharge , Masahiro Hasuo, Shinichi Namba, Keisuke Fujii, Taiichi Shikama and Hiromichi Azuma, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  13. Spectroscopic Measurement of Atomic Hydrogen Impurity in a Microhollow Cathode Helium Plasma, L. Matsuoka, Daisuke Maki and Shinichi Namba, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  14. Development of laser absorption spectroscopy system for velocity distribution measurement in Ar arcjet plasma, R. Mizoguchi, Leo Matsuoka and Shinichi Namba, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  15. Ray-trace analysis for improvement of spatial resolution in spectroscopy of microhollow cathode plasma, Mizuki Nakai, Leo Matsuoka and Shinichi Namba, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  16. Spectroscopic study of laser induced Fe plasma for electron temperature and density measurements, C. Ikeda, Leo Matsuoka and Shinichi Namba, Plasma Conference2014, 2014/10/21, Without Invitation, Japanese, JPS, Niigata
  17. Pump-probe experiment for temporal profile measurement of plasma x-ray laser, S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino and T. Kawachi, International Conference on X-ray Laser 2014, 2014/05/12, Without Invitation, English, Colorad Univ., Colorad, Fort Collins
  18. Development of an Ar cascade arc discharge device and its spectroscopic characterization, S. Namba, S. Fujino, L. Matsuoka, 電気学会プラズマ研究会, 2014/05/09, Without Invitation, Japanese, 電気学会, Ashikaga
  19. Electric field measurement in a microhollow cathode from Stark spectrum of hydrogen Balmer- line , L. Matsuoka, Daisuke Maki, Kazuki Yanagiya, Shinichi Namba, 電気学会プラズマ研究会, 2014/05/09, Without Invitation, Japanese, 電気学会, Ashikaga

External Funds

Acceptance Results of Competitive Funds

  1. 2016/04/01, 2016/03/31
  2. 2017, 2018