(A) 学術雑誌掲載論文（査読付き原著論文）

1. “Observation of population inversion in He I due to a double electron capture process”

   S. Namba, S. Kusakabe, K. Takahara, K. Sato, T. Katsuta and T. Oda,

   Fusion Engineering and Design, 34-35, pp. 777-779 (1997).

2. “A double electron capture by alpha particles in collisions with hydrogen molecules in low temperature plasma”

   T. Oda, K. Sato, S. Namba, S. Kusakabe, K. Takahara, H. Tawara, T. Katsuta, K. Takiyama and

   U. Furukane,

   J. Nucl. Matter., 241-243, pp. 1238-1242 (1997).  

3. “Double electron capture process in C3+-H2 collisions inferred from spectroscopic measurements

   in plasmas”

   K. Iwasaki, S. Namba, K. Takahara,. S. Kusakabe, K. Toi, Y. Hamada, K. Sato,

   J. Phys. D, Appl. Phys., 31, pp. 2789-2796 (1998).

4. “Spectroscopic observation of a helium plasma cooled by a hydrogen gas injection”

   S. Namba, I. Nomura, K. Iwasaki, K. Takiyama, U. Furukane, T. Oda and K. Sato,

   J. Nucl. Mater., 266-269, pp. 1157-1160 (1999).

5. “Spectroscopic study of ionizing and recombining plasma in a stationary plasma source”

   S. Namba, M. Goto, H. Tsuboi, T. Oda and K. Sato,

   J. Appl. Phys., 88, pp. 3182-3189 (2000).

6. “Production of highly-charged ions by nitrogen gas target irradiated with ultrashort high-intensity pulse laser”

   S. Namba, T. Kawachi, N. Hasegawa, K. Nagashima, K. Sukegawa, M. Kado, M. Tanaka, H. Daido, Y. Kato,

   Int. J. Appl. Electro. and Mech., 14, pp. 277-282 (2001/2002).

7. “Gain saturation of nickel-like silver and tin x-ray lasers by use of a table top pumping laser system”

   T. Kawachi, M. Kado, M. Tanaka, A. Sasaki, N. Hasegawa, A.V. Kilpio, S. Namba, K. Nagashima, P. Lu, K. Takahashi, H. Tang, R. Tai, M. Kishimoto, M. Koike, H. Daido, Y. Kato,

   Phys. Rev. A, 66, 033815 (2002).

8. “Demonstration of a Transient High Gain Soft X-Ray Laser for Neon-Like Argon”

   P. Lu, T. Kawachi, M. Suzuki, K. Sukegawa, S. Namba, M. Tanaka, N. Hasegawa, K. Nagashima, H. Daido, T. Arisawa, Y. Kato, H. Fiedorowicz,

   Jpn. J. Appl. Phys., 41, L133-L135 (2002).

9. “過渡的衝突励起方式によるX線レーザー開発”

   永島圭介, 河内哲哉, 加道雅孝, 田中桃子, 長谷川登, 助川鋼太, 難波愼一, H. Tang, 他2名

   プラズマ核融合学会誌, Vol. 78 No. 3, pp. 248-255 (2002).

10.  “High-density metastable helium atoms produced by Penning-type discharges”

    P. X. Peng, D. Andruczyk, B. W. James, K. Takiyama, S. Namba and T. Oda,

    Plasma Sources Sci. Technol., 12, pp. 142-147 (2003).

11.  “Effect of discharge current and voltage on the high density of metastable helium atoms”

    P. X. Peng, D. Andruczyk, B. W. James, K. Takiyama, S. Namba and T. Oda,

    Chinese Physics, Vol. 12 No. 5, pp. 495-501 (2003).

12. “Development of a pumping laser system for x-ray laser research”

    T. Kawachi, M. Kado, M. Tanaka, N. Hasegawa, K. Nagashima, K. Sukegawa, P. Lu, K. Takahashi,

    S. Namba, M. Koike, A. Nagashima, and Y. Kato,

    Applied Optics, 42 (12), pp. 2198-2205 (2003).

13. “Fast Numerical Calculation for a Set of Nonlinear Rate Equations: Application to Rapid Ionization Phase in Plasma”

    T. Oda, S. Namba, K. Takiyama and U. Furukane,

    Jpn. J. Appl. Phys., 44, pp. 8118-8124 (2005).

14. “Efficient electron heating in nitrogen clusters irradiated with intense femtosecond laser pulses”

    S. Namba, N. Hasegawa, K. Nagashima, T. Kawachi, M. Kishimoto, K. Sukegawa and K. Takiyama,

    Phys. Rev. A, 73, 013205 (2006).

15. “Spectroscopic study of ablation and recombination processes in a laser-produced ZnO plasma”

    S. Namba, R. Nozu, K. Takiyama and T. Oda,

    J. Appl. Phys., 99, 073302 (2006).

16. “Spectroscopic study of debris mitigation with minimum-mass Sn laser plasma for extreme ultraviolet lithography”

    S. Namba, S. Fujioka, H. Nishimura, U. Yasuda, K. Nagai, N. Miyanaga, Y. Izawa, K. Mima

    and K. Takiyama,

    Appl. Phys. Lett., 88, 171503 (2006).

17. “Development of Supersonic Metastable Helium Pulsed Beam Source for Plasma Diagnostics”

    S. Namba, D. Andruczyk, K. Takiyama, D. Ueno, S. Furukawa and B. W. James,

    Jpn. J. Appl. Phys., 45 No. 10B, pp. 8099-8103 (2006).

18. “A short-pulsed compact supersonic helium beam source for plasma diagnostics”

    D. Andruczyk, S. Namba, B. W. James, K. Takiyama and T. Oda,

    Plasma Devices and Operations, 14, pp. 81-89 (2006).

19. “次世代リソグラフィー光源としての最少質量EUV 放射プラズマの開発”

    藤岡慎介，西村博明，井澤靖和，西原功修，青田達也，上田修義，安藤強史，村上匡且，姜永光，乗松孝好，長井圭治，谷勤翠，保田ゆづり，宮永憲明，三間圀興, 島田義則，橋本和久，山浦道照，砂原淳，古河裕之，内田成明，難波愼一,

    プラズマ核融合学会誌, Vol. 82 No. 9, pp. 609-616 (2006).

20. “Observation of OH Radical Reactions with Atomic Hydrogen in He/H2O Plasmas by LIF Spectroscopy”

    K. Takiyama, S. Namba, T. Yamasaki, A. Shoji, J. H. Kwon, R. E. Park and H. Nojima,

    Jpn. J. Appl. Phys., 45, No. 10B, pp. 8260-8263 (2006).

21. “Enhancement of Double Auger Decay Probability in Xenon Clusters Irradiated with a Soft-X-ray Laser pulse”

    S. Namba, N. Hasegawa, M. Nishikino, T. Kawachi, M. Kishimoto, K. Sukegawa, M. Tanaka,

    Y. Ochi, K. Takiyama and K. Nagashima,

    Phys. Rev. Lett., 99, 043004 (2007).

22. “Novel atmospheric pressure plasma device releasing atomic hydrogen: reduction of microbial-contaminants and OH radicals in the air”

    H. Nojima, R. Park, J. Kwon, I. Suh, J. Jeon, E. Ha, H.i On, H. Kim, K. Choi, K. Lee, B. Seong, H. Jung, S. Kang, S. Namba and K. Takiyama,

    J. Phys. D: Appl. Phys., 40, pp. 501–509 (2007).

23. “Absolute evaluation of out-of-band radiation from laser-produced tin plasmas for extreme ultraviolet lithography”

    H. Sakaguchi, S. Fujioka, S. Namba, H. Tanuma, H. Ohashi, S. Suda, M. Shimomura, Y. Nakai, Y. Kimura, Y. Yasuda, H. Nishimura, T. Norimatsu, A. Sunahara, K. Nishihara, N. Miyanaga, Y. Izawa, K. Mima,

    Appl. Phys. Lett., 92, 111503 (2008).

24. “Characterization of out-of-band radiation and plasma parameters in laser-produced Sn plasmas for extreme ultraviolet lithography light sources”

    S. Namba, S. Fujioka, H. Sakaguchi, H. Nishimura, Y. Yasuda, K. Nagai, N. Miyanaga, Y. Izawa, K. Mima, K. Sato, K. Takiyama,

    J. Appl. Phys., 104, 013305 (2008).

25. “軟Ｘ線レーザー照射によるXeクラスターの内殻電離過程”

    難波慎一,

    プラズマ核融合学会誌, Vol. 84, No. 7, pp. 439-442 (2008).

26. “Effect of Disalignment due to Electron Collision on Laser-Induced Fluorescence Polarization Spectroscopy for Measuring Electric Field in Plasmas”

    S. Furukawa, S. Namba, K. Takiyama, T. Oda,

    Jpn. J. Appl. Phys., 47, pp. 8570-8575 (2008).

27. “Photoionized Xenon Cluster Plasmas Generated by a Soft X-ray Laser Pulse”

    S. Namba, K. Takiyama, N. Hasegawa, M. Kishimoto, M. Nishikino, T. Kawachi, et al,

    J. Phys. Conf. Series, 112, 042057 (2008).

28. “Transition from Thermal to Recombining Plasma in a Free Expanding Arc Jet Plasma Generator”
    S. Namba, K. Nakamura, K. Yashio, S. Furukawa, K. Takiyama, K. Sato, 
    J. Plasma and Fusion Res. Series, 8, pp. 1348-1352 (2009).

29. “Intensity and polarization of laser-induced fluorescence due to forbidden excitation of He atoms immersed in an electric field in plasmas” K. Takiyama, S. Furukawa, S. Namba, T. Oda, and K. Kawasaki, Phys. Rev. E, 79, 026402 (2009).

30. “Spatially-resolved spectroscopic study of arcjet helium plasmas expanding through a rectangular shaped converging-  diverging nozzle” S. Namba, N. Yashio, K. Kozue, K. Nakamura, T. Endo, K. Takiyama and K. Sato, Jpn. J. Appl. Phys. 48, 116005 (2009).

31. “Two-dimensional spatial temperature and density measurements in an arcjet plasma expanding through a slit nozzle”K. Kozue, S. Nakamitsu, S. Namba, T. Endo, K. Takiyama, K. Sato and N. Tamura, Plasma and Fusion Research, 6 2406054 (2010).

32. “Emission spectroscopy of a microhollow cathode discharge plasma in helium-water gas mixtures”
    S. Namba, T.Yamasaki, Y.Hane, D.Fukuhara, K.Kozue, and K.Takiyama,
    J. Appl. Phys. 110, 073307 (2011).

33. “Electron spectra of xenon clusters irradiated with a laser-driven plasma soft-x-ray laser pulse”
    S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino, K. Takiyama and T. Kawachi, 
    Phys. Rev. A, 84, 053202 (2011).

34. “Effect of cathode length on electrical characteristics of a microhollow cathode discharge in helium”
    T. Yamasaki, S. Namba, K. Takiyama and N. Nojima,
    Jpn. J. Appl. Phys. 51, 066001 (2012)

35. “Pressure Dependences of Gas Temperature and Electron Density in Microhollow Cathode　Discharges in He and He+H2O Gases”
    T. Yamasaki, S. Namba, K. Takiyama, and H. Nojima
    Jpn. J. Appl. Phys. 51, 126101 (2012).

36. “Spectroscopic measurement of shock waves in an arcjet plasma expanding through a conical nozzle”
    K. Kozue, G. Kumakawa, S. Namba, T. Endo, K. Takiyama, K. Sato and N. Tamura,
    Plasma Sci. Technol. 15, 89 (2013).

37. “Characterization of a microhollow cathode discharge plasma in helium or air with water vapor”
    D. Fukuhara, S. Namba, K. Kozue, T. Yamasaki and K. Takiyama,
    Plasma Sci. Technol. 15, 129 (2013).

38. “Cathode sheath thickness of a microhollow cathode discharge plasma in argon high gas pressures”
    D. Fukuhara, S. Namba and K. Takiyama,
    Engineering Journal 17, pp1-6(2013).

39. “Spectroscopic observation of He arcjet plasma expanding through a converging and diverging slit nozzle”
    K. Kozue, S. Namba, T. Endo, K. Takiyama and N. Tamura,
    Engineering Journal 17, pp7-12(2013).

40. “Mass Spectrometry Study of Reactive Species in a Microhollow Cathode Discharge in He+H2O Mixtures”
    Y. Katada, S. Ikeno, S. Murakami, S. Namba, K. Takiyama, K. Takenoshita, H. Nojima
    Engineering Journal 17, pp.29-34 (2013).

41. “Parametric amplification of attosecond pulse trains at 11 nm”
    J. Seres, E. Seres, B. Landgraf, B. Ecker, B. Aurand, A. Hoffmann, G. Winkler, S. Namba, T. Kuehl and C. Spielmann,
    Sci. Rep.4, 04254 (2014).

42. ” Measurements of Localized Potential by LIF Polarization Spectroscopy in an Inertial-Electrostatic”
    T. Motoyasu, S. Namba and K. Takiyama,
    J. Korean. Phys. Soc., 65, pp.1205-1208 (2014).

43. ” Investigation of shock wave in an arcjet He plasma by electric probe and emission spectroscopy”
    G. Kumagawa, K. Kozue, S. Fujino, L. Matsuoka, T. Endo, S. Namba, N. Tamura, N. Ezumi,
    J. Korean. Phys. Soc., 65, pp.1252-1256(2014).

44. ” Spatially Resolved Absorption Spectroscopy on a Microhollow Cathode Helium Plasma Using a Vertical-Cavity Surface- Emitting Laser”,
    K. Torii, S. Yamawaki, K. Takayama, S. Namba, K. Fujii, T. Shikama and M. Hasuo,
    Plasma Fusion Res., 10, 3406063 (2015).

45. ” Construction of a magnetic bottle spectrometer and its application to pulse duration measurement of X-ray laser using a pump-probe method”
    S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino, M. Ishino and T. Kawachi,
    AIP Advances., 5, 117101 (2015).

46. “Quantum control of isotope-selective rovibrational excitation of diatomic molecules in the thermal distribution”
    Akira Ichihara, Leo Matsuoka, Yuzuru Kurosaki, Keiichi Yokoyama,
    Optical Review, 22, pp. 153-156 (2015).

47. “Isotope-selective dissociation of diatomic molecules by terahertz optical pulses”,
    Akira Ichihara, Leo Matsuoka, Etsuo Segawa, Keiichi Yokoyama,
    Physical Review A, 91, 043404 (2015).

48. “Unified parameter for localization in isotope-selective rotational excitation of diatomic molecules using a train of optical pulses", Leo Matsuoka, Physical Review A, 91, 043420 (2015).

49. “An Ab Initio Study on Four Low-lying Electronic Potential Energy Curves for Atomic Cesium and Rare Gas Pairs”,
    Takanori Kobayashi, Kenta Yuki, Leo Matsuoka,
    Chemistry Letters, 45, pp. 1400-1402 (2016).

50. “Reinjection of transmitted laser light into laser-produced plasma for efficient laser ignition”,
    T. Endo, Y. Takenaka, Y. Sako, T. Honda, T. Johzaki and S. Namba,
    Applied Optics 55, pp. 1132 (2016).

51. “Avalanche of stimulated forward scattering in high harmonic generation”,
    C. Serrat,, D.Roca, J. M. Budesca, J. Seres, E. Seres, B. Aurand, A. Hoffmann, S. Namba, T. Kuehl, and C. Spielmann,
    Opt. Exp 24, 8028 (2016).

52. “Development of a cascade arc discharge source for an atmosphere-vacuum interface device”,
    S. Namba, T. Endo, S. Fujino, C. Suzuki, and N. Tamura,
    Rev. Sci. Instrum. 87, 083503 (2016).

53. “Core-level attosecond transient absorption spectroscopy of laser-dressed solid films of Si and Zr”,
    E. Seres, J. Seres, C. Serrat and S. Namba,
    Phys. Rev. B 94, 165125 (2016).

54. “Numerical Study of Spectral Line Shapes in High-Density He Plasmas”,
    H. Kawazome and Shinichi Namba, Plasma Fusion. Res. 11, 2401124 (2016).

55. “Localization in Rotational Excitation of Diatomic Molecules Induced by a Train of Optical Pulses”,
    Leo Matsuoka, Etsuo Segawa, Interdisciplinary Information Sciences, 23, pp. 51-56 (2017).

56. “Numerical analysis of highly efficient laser-based method of radioactive Cs isotope separation utilizing light-induced drift in D1 and D2 transitions in rare gases”,
    Kenta Yuki, Takanori Kobayashi, Leo Matsuoka, Journal of Nuclear Science and Technology, 54, pp. 1240-1250 (2017).

57. “Quasi-classical Trajectory Calculation for the Cesium Exchange Reaction of 133CsI (v = 0, j = 0) + 135Cs → 133Cs + I135Cs”, Takanori Kobayashi, Leo Matsuoka, Keiichi Yokoyama, Journal of the Japan Institute of Energy, 96, pp. 441-444 (2017).

58. “Numerical study of collisional effects in saturated absorption spectrum of argon arcjet plasma”,
    Leo Matsuoka, Noritaka Nishiya, Kenta Yuki, Yutaro Sonoyama, Journal of Instrumentation, 12, C11023 (2017).

59. “An experimental study on the ignition ability of a laser-induced gaseous breakdown”,
    T. Endo, Y. Takenaka, Y. Sako, T. Johzaki, S. Namba,
    Combustion and Flame 178, 1 (2017).

60. “Measurement of ion Mach number of arcjet plasmas by a directional Langmuir probe under high-gas pressure”,
    W. Sasano, T. Shikama, K. Kozue, L. Matsuoka, N. Tamura and S. Namba,
    IEEE Transactions on Plasma Science 3, pp. 285-288 (2017).

61. “Attosecond sublevel beating and nonlinear dressing on the 3d-to-5p and 3p-to-4s core transtions at 91.3 eV and 21.0 eV in Krypton",
    E. Seres, J. Seres, S. Namba, J. Afa and C. Serrat, Opt. Exp. 25, pp.31775 (2017).

62. “Comparative study of laser ignition and spark-plug ignition in high-speed flows”,
    T. Endo, K. Kuwamoto, W. Kim, T. Johzaki, D. Shimokuri, S. Namba,
    Combustion and Flame, 191 pp.408-417 (2018).

63. “Characteristics of an under-expanded supersonic flow in arcjet plasmas”,
    S. Namba, T. Shikama, W. Sasano, N. Tamura and T. Endo, Jpn. J. Appl. Phys. 57, 066101 (2018).

64. “Investigation of a large diameter He cascade arc plasma by vacuum-UV and visible emission spectroscopy",
    Y. Asano, Y. Iwamoto, K. Fukuyama, N. Tamura, T. Endo and S. Namba,
    IEEE Trans. Plasma Sci. 99, pp. (2018)

65. “Laser absorption spectroscopy for measurement of He metastable atoms of a microhollow cathode plasma”,
    Keisuke Ueno, Kenta Kamebuchi, Jiro Kakutani, Leo Matsuoka, Shinichi Namba, Keisuke Fujii, Taiichi Shikama, Masahiro   Hasuo,
    Jpn. J. Appl. Phys. 57, 01AA03 (2018).

66. “Emission of water-window soft x-rays under optically thin conditions using low-density foam targets”,
    H. Hara, H. Kawasaki, T.Tamura, T. Hatano, T. Ejima, W. Jiang, H.Ohashi, S. Namba, A. Sunahara, A. Sasaki, M. Nishikino,G. O’Sullivan, and T. Higashiguchi,
    Opt. Lett.43, pp3493-3496 (2018)．https://doi.org/10.1364/OL.43.003750

67. “Spectral dynamics of soft x-ray emission in dual laser-produced medium-Z plasma”,
    H. Ohashi, H. Hara, G. Arai, T. Hatano, T. Ejima, C. Suzuki, S. Namba, A. Sasaki, M. Nishikino, G. O'Sullivan, T. Higashiguchi,
    Appl. Phys. B, 124, 193 (2018).

68. “Intense water-window soft x-ray emission by spectral control using dual laser pulses”,
    G. Arai, H. Hara, T. Hatano, T. Ejima, W. Jiang, H. Ohashi, S. Namba, A. Sunahara, A. Sasaki, M. Nishikino, G. O’Sullivan, and T. Higashiguchi,
    Optics Express, Vol. 26, pp. 27748-27756 (2018). https://doi.org/10.1364/OE.26.027748

69. “High-density cascade arc plasma sources for application to plasma windows for virtual vacuum interfaces “,
    S. Namba, Y. Iwamoto, Y. Asano, T. Shugyo, K. Fukuyama, N. Ikoma, H. Okuno, N. Tamura, and T. Endo,
    Physics of Plasmas 25, 113511 (2018); https://doi.org/10.1063/1.5070071

70. “Experiments on laser cleaning of sooted optical windows”,
    Takuma Endo, Kazuki Okada, Yuto Ito, Wookyung Kim, Tomoyuki Johzaki, and Shin-ichi Namba,
    Appl. Opt. 57(36), 10522-10527 (2018). https://doi.org/10.1364/AO.57.010522

71. “Enhancement of water-window soft X-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere”,
    C. John, M. Kishimoto, T. Johzaki, T. Higashiguchi, N. Kakunaka, Y. Matsumoto, N. Hasegawa, M. Nishikino, T. Ejima, A. Sunahara, T. Endo, and S. Namba,
    Opt. Lett. 46 pp.1439-1442 (2019). https://doi.org/10.1364/OL.44.001439

72. “Extreme-ultraviolet coherent pulse amplification in argon”,
    C. Serrat, J. Seres, E. Seres and S. Namba, Phys. Rev. A 99, 063425 (2019). DOI: 10.1103/PhysRevA.99.063425

73. “Demonstration of Plasma Window with 20mm Diameter and Pressure Separation for Accelerator Applications”,
    N. Ikoma, Y. Miyake, M. Takahashi, H. Okuno, S. Namba, K. Takahashi, T. Sasaki, and T. Kikuchi,
    Plasma Fusion Res. 14, 1206148 (2019). https://doi.org/10.1585/pfr.14.1206148

74. “Soft X-ray spectral analysis of laser produced molybdenum plasmas using fundamental and second harmonics of a Nd:YAG laser”,
    R. LOKASANI, H. KAWASAKI, Y. SHIMADA, M. SHOJI, K. ANRAKU, T. EJIMA, T. HATANO, W. JIANG, S. NAMBA, J. NIKL,  M.  ZEMAN, G. O’SULLIVAN, T. HIGASHIGUCHI, and J. LIMPOUCH,
    Opt. Exp. 27, pp.33351-33358 (2019). https://doi.org/10.1364/OE.27.033351

75. “Spatially resolved laser absorption spectroscopy on a micro-hollow cathode He plasma”
    K. Ueno, Keisuke, K. Kamebuchi, J. Kakutani, L. Matsuoka, S. Namba, K. Fujii, T. Shikama, M. Hasuo,
    Jpn. J. Appl. Phys., SAAB03 (2019). https://doi.org/10.7567/1347-4065/aaec19

76. “Optimized highly charged ion production for strong soft x-ray sources obeying a quasi-Moseley's law”,
    Y.Shimada, H. Kawasaki, K. Watanabe, H. Hara, K. Anraku, M. Shoji, T. Oba, M. Matsuda, W. Jiang, A. Sunahara, M. Nishikino, S. Namba, G. O'Sullivan, and T. Higashiguchi,
    AIP Advances 9, 115315 (2019). https://doi.org/10.1063/1.5127943

77. “Observation of gain coefficients of 15.47 nm Li-like Al soft x-ray laser in a recombining plasma pumped by a compact YAG  laser”,
    S. Namba, C. John , T. Morishita , N. Kubo , M. Kishimoto , N. Hasegawa , M. Nishikino,
    High Energy Density Physics 25, 100790 (2020). https://doi.org/10.1016/j.hedp.2020.100790

78. “Characteristics of plasma window with various channel diameters for accelerator applications”,
    N. Ikoma, Y. Miyake, M. Takahashi, H. Okuno, S. Namba, K. Takahashi, T. Sasaki, and T. Kikuchi,
    Rev. Sci. Instrum. 91, 053503 (2020). https://doi.org/10.1063/1.5140709

79. “Electron temperature and soft x-ray intensity scaling in laser heavy element plasma interaction”, T. Higashiguchi, AIP Advances 10, 065306 (2020). https://doi.org/10.1063/5.0009946

80. “Observation of water-window soft x-ray emission from laser-produced Au plasma under optically thin condition”,
    C. John, M. Kishimoto, Y. Matsumoto, T. Morishita, T. Higashiguchi, T. Endo, A. Sunahara, T. Johzaki, S. Namba,
    High Energy Density Physics. 100845 (2020). https://doi.org/10.1016/j.hedp.2020.100845

81. “Deflagration-to-detonation transition in laser-ignited explosive gas contained in a smooth-wall tube”,
    Takuma Endo, Shimon Kuwajima, Wookyung Kim,Tomoyuki Johzaki, Daisuke Shimokuri, Akira Miyoshi, Shin-ichi Namba,
    Combustion and Flames 219, pp.275-282 (2020). https://doi.org/10.1016/j.combustflame.2020.06.005

82. “Development of high performance cascade arc discharge device for applications to plasma window”,
    Md. Anwarul Islam, Takumi Yamaguchi, Kouhei Fukuyama, Hayato Kawazome, Naoki Tamura, Shinichi Namba,
    IEEE Transactions on Plasma Science, (2020). 10.1109/TPS.2020.3000729

83. “Parametric attosecond pulse amplification far from the ionization threshold from high order harmonic generation in He+”,
    C. SERRAT, J. SERES, E. SERES, T. H. DINH, N. HASEGAWA, M. NISHIKINO, AND S. NAMBA,
    Opt. Exp. 28, 24243 (2020). https://doi.org/10.1364/OE.398595

84. “Charge-separated spectra of suprathermal highly charged bismuth ions in a dual laser-produced plasma soft x-ray source”,
    H. Kawasaki, T. Tamura, A. Sunahara, M. Nishikino, S. Namba, G. O’Sullivan, and T. Higashiguchi,
    Rev. Sci. Instrum. 11, 086103 (2020). https://doi.org/10.1063/5.0012225

85. "Numerical Study on Radiation Trapping of He I Resonance Lines in Arc Plasma Under High-Gas Pressures", 
    Hayato KAWAZOME, Md Anwarul ISLAM, Shinichi NAMBA,
    Plasma and Fusion Research, 16, 2401012 (2021). https://doi.org/10.1585/pfr.16.2401012

86. “VUV Emission Spectroscopy for Evaluation of Optical Thickness in He Cascade Arc Plasmas”，Md. Anwarul ISLAM, Ryo SHIGESADA, Takumi YAMAGUCHI, Hayato KAWAZOME, Naoki TAMURA, Hiroki OKUNO and Shinichi NAMBA、Plasma Fusion Res. 16, 2406011 (2021). DOI: 10.1585/pfr.16.2406011

87. “Numerical Study on Radiation Trapping of He I Resonance Lines in Arc Plasma Under High-Gas Pressures”, Hayato KAWAZOME, Md Anwarul ISLAM and Shinichi NAMBA, Plasma Fusion Res. 16, 2401012 (2021). DOI: 10.1585/pfr.16.2401012.

88. “Enhancement of Gain Coefficient of Li-Like Ion 3d-4f Soft X-ray Laser Oscillation by a Single Resonator”, Shinichi Namba, Jiahao Wang, Hikari Ohiro, Jiawei Zhang, Maki Kishimoto, Kotaro Yamasaki, Noboru Hasegawa, Thanhhung Dinh, Masahiko Ishino, Takeshi Higashiguchi and Masaharu Nishikino, Atoms 10, 128(2022). https://doi.org/10.3390/atoms10040128 

89. “Generation of Highly Charged Au Ion in Laser-Produced Plasma for WaterWindow X-ray Radiation Sources, JiahaoWang , Maki Kishimoto , Tomoyuki Johzaki, Kairi Mizushima, Chihiro Kumeda, Takeshi Higashiguchi, Atsushi Sunahara, Hikari Ohiro, Kotaro Yamasaki and Shinichi Namba”, Atoms 10, 150 (2022). https://doi.org/10.3390/atoms10040150

90. Evaluation of self-absorption effect of He I resonance line by measurement of forbidden emission in helium arc jet plasma，R. Shigesada, M. A. Islam, H. Kawazome, K. Okuda, Y.Sunada, O. Yanagi, M. Sumino, K. Hatta, N. Tamura, K. Yamasaki, J. Kawata, and S. Namba, Phys. Plasmas 29, 113505 (2022) doi: 10.1063/5.0109171

91. “Nonlinear propagation effect in x-ray parametric amplification during high harmonic generation”, J. SERES, E. SERES, C. SERRAT, T. H. DINH, N. HASEGAWA, M. ISHINO, M. NISHIKINO, K. NAKANO, AND S. NAMBA, J. Opt. Soc. America B 34, pp.1263-1271 (2023). https://doi.org/10.1364/JOSAB.454902

92. “Construction of a Magnetic Bottle Electron Spectrometer for Electron Energy Measurement in BISER X-Rays and Xe Interaction”, Hikari OHIRO, Alexander S. PIROZHKOV, Koichi OGURA, Akito SAGISAKA, Tatiana A. PIKUZ, Kai HUANG, Masaki KANDO, Kotaro YAMASAKI and Shinichi NAMBA, Plasma Fusion Res. 17, 2406020 (2023). DOI: 10.1585/pfr.17.2406020.

93. “Discharge characteristics of steady-state high-density plasma source based on cascade arc discharge with hollow cathode”, K. Yamasaki, O. Yanagi, Y. Sunada, K. Hatta, R. Shigesada, M. Sumino, T. Yamaguchi, Md. Anwarul Islam, N. Tamura, H. Okuno, and S. Namba, Rev. Sci. Instrum. 93, 053502 (2022)．https://doi.org/10.1063/5.0076388

94. “Generation of stationary high-density cascade arc plasma and application to plasma windows”, K. Yamasaki,O.Yanagi,Y. Sunada,K.Okuda,A. Saito,J. Kono,D Mori,N. Tamura, H. Okuno and S. Namba, Jpn. J. Appl. Phys. 62, SL1009 (2023). 10.35848/1347-4065/acd55e

95. “Water-window x-ray emission from laser-produced Au plasma under optimal target thickness and focus conditions”, Jiahao Wang , Maki Kishimoto,Tomoyuki Jozaki , Tomohiro Kumeda, Takeshi Higashiguchi , Atsushi Sunahara , Hikari Ohiro, Kotaro Yamasaki , and Shinichi Namba, Phy. Rev. E. 107, 065211 (2023). DOI:https://doi.org/10.1103/PhysRevE.107.065211．

96. “Optimization of Extreme Ultra-Violet light emitted from CO2 laser-irradiated tin plasmas using 2D radiation hydrodynamic simulations”, Atsushi Sunahara, Ahmed Hassanein, Kentaro Tomita, Shinichi Namba, and Takeshi Higashiguchi, Optics Express 31, 31780 (2023). https://doi.org/10.1364/OE.497282

97. “Development of a large-bore plasma window with an indirectly heated hollow cathode, K. Yamasaki, M. Sumino, Y. Sunada, O. Yanagi, K. Okuda, J. Kono, A. Saito, D. Mori, K. Tomita, Y. Pan, N. Tamura, C. Suzuki, H. Okuno, F. Guo, “S. Namba”, J. Appl. Phys. 134, 093302 (2023)．https://doi.org/10.1063/5.0166798

98. “Spectral Shift and Split of Harmonic Lines in Propagation Affected High Harmonic Generation in a Long-Interaction Gas Tube”, Jozsef Seres, Enikoe Seres , Carles Serrat , Thanh-Hung Dinh , Noboru Hasegawa , Masahiko Ishino ,Masaharu Nishikino and Shinichi Namba, Atoms 11, 150 (2023). https://doi.org/10.3390/atoms11120150.

99. “Spectral control of beyond extreme ultraviolet emission from a dual-laser-produced plasma”,Masaki Kume, Tsukasa Sugiura, Hiroki Morita, Weihua Jiang, Kazuyuki Sakaue,Shinichi Namba, Gerry O’Sullivan, and Takeshi Higashiguchi, Appl. Phys. Lett. 124, 052107 (2024). https://doi.org/10.1063/5.0180836.

100. “Angular distribution separation of the extreme ultraviolet emission and suprathermal ions with energy reduction”, T. Niinuma, T. Sugiura, H. Morita, W. Jiang, K Sakaue, G. O’Sullivan, S. Namba, and T. Higashiguch, Appl. Phys. Lett. 124 054104 (2024). https://doi.org/10.1063/5.0180842．

101. “Efficient extreme ultraviolet emission by multiple laser pulses”，T. Sugiura, H. Yazawa, H. Morita, K. Sakaue, D. Nakamura, Eiji J. Takahashi, A. Sunahara, G. O’Sullivan, S. Namba, and T. Higashiguchi, Appl. Phys. Lett.125 034103 (2024). https://doi.org/10.1063/5.0214952

102. “In-vacuum post-compression of optical probe pulses for relativistic plasma diagnostics”, S. Lorenz N. Nakanii, K. Huang, G.M.Grittani1, K. Kondo, A. Kon, Y.-K. Liu ,A. Sagisaka, K. Ogura, ,A. Bierwage, S. Namba, H. Ohiro, T.A. Pikuz, J. K. Koga, P. Chen, H. Kiriyama, M. Kando, T. Zh. Esirkepov, S.V.Bulanov, and A. S. Pirozhkov, High Power Laser Science and Engineering, (2024), Vol. 12, e53, doi:10.1017/hpl.2024.29

103. “Laser-produced plasma water-window x-ray source by continuous liquid bismuth jet”, Tatsuya Soramoto, Ayaka Ogiwara, Hiroki Morita, Weihua Jiang, Kazuyuki Sakaue, Takeo Ejima, Gerry O’Sullivan, Shinichi Namba, and Takeshi Higashiguchi, Opt. Lett. 49, pp. 5791-5794 (2024) •https://doi.org/10.1364/OL.539678

104. “Water-Window Soft X-Ray Spectra from Dual Laser-Produced Bi Plasmas”, Toida, T; Sugiura, T; Yazawa, H; Morita, H; Namba, S; Higashiguchi, T, PLASMA FUS. RES.,20.10.1585/pfr.20.2406003: (2025).

105. “EUV Emission from a Regenerative Liquid Target Laser-Produced Plasma”, Soramoto, T; Niinuma, T; Morita, H; Namba, S; Higashiguchi, T, PLASMA FUS. RES., 20: 10.1585/pfr.20.2406013: (2025).

106. “EUV Spectra from Laser-Produced Tungsten Plasmas”, Ohashi, H; Kawasaki, H; Shimada, Y; Namba, S; O'sullivan, G; Higashiguchi, T, PLASMA FUS. RES., 20:10.1585/pfr.20.2401014: (2025).

107. “Improvement of EUV Spectra by Optical Thickness Control”, Sugiura, T; Kume, M; Morita, H; Namba, S; Higashiguchi, T:: PLASMA FUS. RES., 20: 10.1585/pfr.20.2406004: (2025)

108. “Spectroscopic Diagnostics of Radiation Reabsorption in Dense He Arc Plasmas”, Md Anwarul Islam, Shinichi Namba, International Journal of Research and Innovation in Applied Science (IJRIAS), vol. 9(7), pages 194-201 (2024).

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(B) 国際会議発表論文

1. “Production of Highly-Charged Ions by Clusters Irradiated with Ultrashort High-Intense Pulse Laser”

   S. Namba, T. Kawachi, N. Hasegawa, K. Nagashima, K. Sukegawa, M. Tanaka, Y. Kato, et al.

   4th Pacific Rim Conference on Lasers and Electro-Optics, Technical digest II, pp. 110-111 (2001).

2. “Soft X-ray Emission of Cluster Target Irradiated with Ultrashort High-Intensity Pulse Laser”

   S. Namba, T. Kawachi, M. Kado, N. Hasegawa, M. Tanaka, K. Sukegawa K. Nagashima, Y. Kato,

   Proc. 10th Int. Sympo. on Appl. Electromagnetics and Mechanics, pp. 369-370 (2001).

3. “Higher harmonics generation for the high coherent x-ray laser”

   N. Hasegawa, A. V. Kilpio, K. Nagashima, T. Kawachi, M. Kado, M. Tanaka, S. Namba, K. Takahashi, K. Sukegawa, P. Lu, H. Tang, M. Kishimoto, T. Renzhong, H.i Daido, and Y. Kato,

   Proc. SPIE, 4505, pp. 204-210 (2001).

4. “X-ray laser research at Advanced Photon Research Center of JAERI, Kansai”

   M.Kado, T. Kawachi, M. Tanaka, N. Hasegawa, K. Takahashi, S. Namba, K. Sukegawa, A. Sasaki,

   P. Lu, H. Tang, K. Nagashima, H. Daido, A. V. Kilpio, and Y. Kato,

   Proc. SPIE, 4505, pp. 54-61 (2001).

5. “Demonstration of Transient Collisional Excitation X-Ray Lasers in Gases”

   P. Lu, T. Kawachi, M. Suzuki, K. Sukegawa, S. Namba, M. Tanaka, N. Hasegawa, R. Tai,

   M. Kishimoto, M. Kado, K. Nagashima, H. Daido, Y. Kato, and H. Fiedorozicz,

   AIP Conference Proceedings, 634, pp. 241-246 (2001).

6. “A pulsed supersonic helium beam for diagnostics applications”

   D. Andruczyk, B.W. James, K. Takiyama, S. Namba and T. Oda,

   The 6th Japan-Australia Plasma Diagnostics Workshop, CD-ROM 6 pages (2002).

7. “High-Sensitive LIF Measurements of Electric Field Perpendicular to Magnetic Field in Plasmas”

   K. Takiyama, S. Namba, S. Furukawa, T. Oda, T. Ohgo, B.W. James and D. Andruczyk,

   Proc. 11th Int. Sympo. Laser-Aided Plasma Diagnistics, CD-ROM 5 pages (2003).

8. “Observation of Interference between Stark and Electric Quadrupole Transitions in LIF from He Atoms in Plasma”

   K. Takiyama, S. Namba, S. Furukawa, T. Oda, B.W. James and D. Andruczyk,

   Proc. 4th Int. sympo. on Plasma Polarization Spectroscopy, NIFS-Proc-57, pp. 137-143 (2004).

9. “Charge exchange recombination x-ray laser in a cluster plasma produced by an ultra-short high intensity pulse laser”

   S. Namba, K. Takiyama, N. Hasegawa, M. Kishimoto, T. Kawachi, K. Nagashima,

   Proceedings "X-RAY LASERS 2004", ed. J. Zhang, pp. 481-484 (2005).

10. “Atmospheric Observation of OH Radical Reactions with Atomic Hydrogen Produced in Plasmas by 　Laser-Induced Fluorescence Spectroscopy”

    K. Takiyama, S. Namba, T. Yamasaki, J.H. Kwon, R.E. Park and H. Nojima,

    Proc. 7th conference on Atmospheric Spectroscopy Applications, pp. 245-248 (2005).

11. “Spectroscopic Investigation of Atomic Hydrogen Generation in Atmospheric Pressure Plasma Device”

    H. Nojima, R.E. Park, J.H. Kwon, S. Namba and K. Takiyama,

    Proc. 2nd International Workshop on Cold Atmospheric Pressure Plasma: Source and Applications, pp. 110-113 (2005).

12. “Spectroscopic studies of ionization and recombination dynamics in laser produced ZnO plasmas”

    S. Namba, K. Uemura, S. Furukawa and K. Takiyama,

    Proceedings of the International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing, pp. 385-386 (2006).

13. “Development of a pulsed supersonic metastable helium beam source for plasma diagnostics”

    S. Namba, D. Andruczyk, D. Ueno, S. Furukawa and B. W. James, K. Takiyama,

    Proceedings of the International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing, pp. 701-702 (2006).

14. “Inner-Shell Ionization in Xe Clusters Irradiated with X-Ray Laser Pulse”

    S. Namba, N. Hasegawa, M. Nishikino, T. Kawachi, M. Kishimoto, K. Sukegawa, M. Tanaka,

    K. Nagashima and K. Takiyama,

    Proceedings "X-RAY LASERS 2006", pp. 511-515 (2006).

15. “Emission profile from micro-hollow cathode discharge plasmas in helium water vapor mixture”

    T. Yamasaki, S. Namba and K. Takiyama,

    Proceedings of the International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing, pp. 345-346 (2006).

16. “Observation of OH radical reactions with atomic hydrogen in atmospheric He/H2O plasmas by LIF spectroscopy”

    K. Takiyama, S. Namba, T. Yamasaki, A. Shoji, J. H. Kwon, R. E. Park and H. Nojima,

    Proceedings of the International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing, pp. 315-316 (2006).

17. “Depolarization effect by electrons on electric field measurements in He plasmas using LIF polarization spectroscopy”

    K. Takiyama, T. Yamasaki, S. Furukawa, T. Nagashima, S. Namba and T. Oda,

    Proceedings of the International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing, pp. 711-712 (2006).

18. “Energy spectra and charge states of debris emitted from laser-produced minimum mass tin plasmas”

    S. Fujioka, H. Nishimura, T. Ando, N. Ueda, S. Namba, T. Aota, M. Murakami, K. Nishihara, Y. Kang, A. Sunahara, H. Furukawa, Y. Shimada, N. Miyanaga, Y. Izawa, K. Mima,

    Proc. SPIE, 6151, V1513 (10 pages) (2006).

19. “Effect of Collisional Disalignment on LIF Polarization Spectroscopy for Measuring Electric Field in Plasmas”

    S. Furukawa, S. Namba, K. Takiyama and T. Oda,

    XXVIII International Conference on Phenomena in Ionized Gases, pp. 1562-1565 (2007).

20. “Measurements of localized electrostatic potential well profiles in a He discharge plasma by LIF polarization spectroscopy”

    S. Furukawa, Y. Kuramoto, S. Namba, K. Takiyama,

    13th Laser aided plasma diagnostics, pp. 170-173 (2007).

21. “A LIF polarization spectroscopy by use of a Stark-electric quadrupole interference for electric field vector measurement in plasmas”

    K. Takiyama, S. Furukawa, S. Namba, T. Oda,

    13th Laser aided plasma diagnostics, pp. 275-278 (2007).

22. "Recent progress on x-ray laser source development and application activities at JAEA"

    M. Kishimoto, K. Nagashima, T. Kawachi, N. Hasegawa, M. Tanaka, Y.Ochi, M. Nishikino,

    K. Sukegawa, H. Yamatani, Y. Kunieda, S. Namba, K. Namikawa and Y. Kato

    Proc. SPIE, 6702, 67020P (2007).

23. “Time-of-Flight Measurements of Ion and Electron from Xenon Clusters Irradiated with a Soft X-ray Laser Pulse”

    S. Namba, N. Hasegawa, M. Nishikino, M. Kishimoto,T. Kawachi, M. Tanaka,Y. Ochi, et al,

    Proceedings ”X-Ray Lasers 2008”, pp. 453-459 (2008).

24. “Energy spectra of photo- and Auger electrons generated by a soft x ray laser and Xe cluster interaction”

    S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino, T. Kawachi,

    X-ray Laser 2010, pp 307-310 (2010).

25. “Spectroscopic Investigations on OH Radicals Generated in He/Water and Air/Water Mixtures by an Atmospheric Pressure Surface Discharge Micro Plasma Device”

    K. Takiyama, H. Nojima, T. Noi, S. Namba, T. Yamasaki,

    Proceedings of the7th International Conference on Reactive Plasmas (2010).

26. “Experiments on Hydrodynamic Stability of Laser-Driven Detonations in Nitrogen and Helium Gases”

    T. Honda, A. Kawaguchi, Y. Hanta, A. Susa, S. Namba, T. Endo, H. Shiraga, K. Shigemori, et al.

    Proceedings of the 23th International Colloquium on the Dynamics of Explosions and Reactive Systems (2011).

27. “Spectroscopic measurement of an inertial electrostatic confinement discharge”

    K. Takiyama, S. Namba, S. Furukawa, Y. Kuramoto, K. Nakanishi, O. Tsunefuji,

    Proceedings of the 30th International Conference on Phenomena in Ionized Gases (2010).

28. “Multi-emission line high-resolution plasma spectroscopy on a micro-hollow cathode atmospheric-pressure helium discharge”

    M. Hasuo, S. Namba, K. Fujii, T. Shikama and H. Azuma,

    Proceedings of “Plasma Conference 2011” (2011).

29.  “Generation of strongly coupled Xe cluster nanoplasmas by low intensive soft X-ray laser irradiation”

    S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino, T. Kawachi,

    Proceedings of the 11th Symposium on Advanced Photon Research (2012).

30.  “Spectroscopic observation of He arcjet plasma expanding through a converging and diverging slit nozzle”

    K. Kozue, S. Namba, T. Endo, K. Takiyama, K. Sato and N. Tamura

    Joint conference on renewable energy and nanotechnology (JCREN 2013), D34 (4 pages, CD-ROM), Hiroshima, Japan (2013).

31.  “Dependence of supersonic nozzle shapes on plasma plugging effect in an arcjet”

    S.Fujino, K. Kozue, S. Namba, T. Endo and N. Tamura

    Joint conference on renewable energy and nanotechnology (JCREN 2013), C11 (4 pages, CD-ROM), Hiroshima, Japan (2013).

32. “Investigation of shock cell formed in an arcjet helium plasma by a double probe measurement”

    G. Kumagawa, K. Kozue, S. Namba, T. Endo and N. Tamura

    Joint conference on renewable energy and nanotechnology (JCREN 2013), D43 (4 pages, CD-ROM), Hiroshima, Japan (2013).

33. “Measurement of electric field in a helium micro hollow cathode discharge plasma by forbidden transition”

    D. Maki, D. Maki, K. Yanagiya, K. Takiyama and S. Namba

    Joint conference on renewable energy and nanotechnology (JCREN 2013), D51 (4 pages, CD-ROM), Hiroshima, Japan (2013).

34. “Development of versatile molecular beam mass spectrometer for atmospheric pressure plasmas in He+H2O mixtures”

    S. IKENO, Y. KATADA, S. NAMBA, K. TAKIYAMA, K. TAKENOSHITA, H. NOJIMA

    Joint conference on renewable energy and nanotechnology (JCREN 2013), C23 (4 pages, CD-ROM), Hiroshima, Japan (2013).

35. “Measurements of localized electrostatic potential profiles in He discharge plasmas by LIF polarization spectroscopy”

    T. MOTOYASU, S. NAMBA and K.TAKIYAMA

    Joint conference on renewable energy and nanotechnology (JCREN 2013), C14 (4 pages, CD-ROM), Hiroshima, Japan (2013).

36. “Investigation of shock wave in an arcjet He plasma by electric probe and emission spectroscopy “

    G. Kumagawa, K. Kozue, S. Fujino, S. Namba, T. Endo, L. Matsuoka, 9th Asian Plasma and Fusion Association, Gyeongju, Korea (2013).

37. “Measurements of localized potential profiles in inertial-electrostatic confinement discharges by LIF polarization spectroscopy “

    T. Motoyasu, S. Namba, K. Takiyama, 9th Asian Plasma and Fusion Association, Gyeongju, Korea (2013).

38. “Pump-probe experiment for temporal profile measurement of plasma x-ray laser”

    S. Namba, N. Hasegawa, M. Kishimoto, M. Nishikino and T. Kawachi, Springer Proc. in Phys. 169, pp.95-102 (2015).

39. “Attosecond dynamics of parametric amplification at 11 nm”

    J. Seres, E. Seres, B. Landgraf, B. Ecker, B. Aurand, A. Hoffmann,  G. Winkler, S. Namba, T. Kuehl, C. Spielmann, Springer Proc. in Phys. 169, pp.173-178 (2015).

40.  “Narrow-band high harmonic emission at 100eV from an optimized generation geometry driven by an ultrafast 40mJ table-top laser”

    M. Zürch, A. Guggenmos, C. Heyl, B. Landgraf, A. Hoffmann, C. Spaeth, R. Hollinger, S. Namba, U. Kleineberg and C. Spielmann

    International Conference on “Correlation Effects in Radiation Fields, 13-18 Sep. (2015). Rostock, Germany.

41. “A study on laser ablation of solid-state cesium iodide by Nd:YAG laser for simple generation of atomic Cs vapor",Hitoshi Goto, Takanori Kobayashi, Leo Matsuoka, Joint Conference on Renewable Energy and Nanotechnology (JCREN2016), [CD-ROM] JCREN2016-2C-2 (2016).

42. “Numerical study on light-induced drift of atomic rubidium based on ab initio interatomic potentials”,Kenta Yuki, Takanori Kobayashi, Leo Matsuoka, Joint Conference on Renewable Energy and Nanotechnology (JCREN2016), [CD-ROM] JCREN2016-2C-3 (2016).

43. “The continuous-time quantum walk with transition moments of the Gaussian distribution as a mathematical model of rotational excitation in molecules by an optical pulse”, Leo Matsuoka, Hynek Lavička, IC-MSQUARE 2017: International Conference on Mathematical Modeling in Physical Sciences, [Virtual presentation] Proceedings 85 (2017).

44.  “Effects of Equation of State on fluid simulations for laser-produced plasmas”

    C. Ikeda, A. Sunahara and S. Namba, Int. Conf. on X-ray laser 2017, pp.213-217 (2018).

45. “Numerical Calculation of Gain Coefficients for a Recombination X-Ray Laser in Carbon Cluster Plasmas”, H. Kawazome and S. Namba

    Int. Conf. on X-ray laser 2017, pp. 63-66 (2018).

46. “Construction of a magnetic bottle electron spectrometer for electron energy measurement in BISER X-ray and Xe gas interaction”, H. Ohiro, A.S. Pirozhkov, T.A. Pikuz, K. Ogura, K. Huang, A. Sagisaka, M. Kando, S. Namba, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

47. “High-Density Sheet Plasma for Versatile Applications of Plasma Window”, K. Hatta, O.Yanagi, R. Shigesada, M. Sumino, Y. Sunada, S. Namba, K.Yamasaki, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

48. “Measurement of soft X-ray emission from laser-irradiated gold foils”, J.H. Wang, M. Kishimoto, T. Johzaki, T. Higashiguchi, A. Sunahara, D. T. Hung, N. Hasegawa, M. Nishikino, K. Yamasaki, S. Namba, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

49. “Radiation Trapping of He Ⅰ Resonance Line in Helium Arc Jet Plasmas”, R. Shigesada, Y. Sunada, H. Kawazome, Md. Anwarul Islam, M. Sumino, K. Hatta, O. Yanagi, K. Kurosaki, N. Tamura, T. Okuno, K. Yamasaki, and S. Namba, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

50. “Stationary hot dense He arc discharge apparatus using an indirectly heated LaB6 hollow cathode electron emitter”, M. Sumino, Y. Sunada, O. Yanagi, Md. Anwarul Islam, R. Shigesada, K. Hatta, K. Kurosaki, N. Tamura, H. Okuno, N. Ohno, M. Takagi, K. Yamasaki, S. Namba, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

51. “Evaluation of Optical Thickness in He Cascade Arc Plasmas Using VUV Emission Spectroscopy”, Md. Anwarul Islam, H. Kawazome, Y. Sunada, M. Sumino, R. Shigesada, K. Yamasaki, N. Tamura, H. Okuno, and S. Namba, 5th Asia-Pacific Conference on Plasma Physics, 26 Sept-1Oct, 2021, Remote e-conference.

52. “Dependence of water window X-ray intensity on target thickness in laser produced Au plasmas”, K. Murakami, T. Jozaki, C. Kumada, A. Sunaharaa, T. Higashiguchi, K. Yamasaki and S. Namba, The 30th International Toki Conference on Plasma and Fusion Research, Nov. 16-19 2021, Toki, Japan.

53. “Construction of a magnetic bottle electron spectrometer for electron energy measurement in BISER X-ray and Xe interaction”, H. Ohiro, A.S. Pirozhkov, K. Ogura, A. Sagisaka, T.A. Pikuz, K. Huang, M. Kando and S. Namba, The 30th International Toki Conference on Plasma and Fusion Research, Nov. 16-19 2021, Toki, Japan.

54. “Measurements of electron temperature and density of a hollow cathode type cascade arc discharge by means of Thomson scattering”, K. Kurosaki, D. Norikoshi, K. Yamasaki, O. Yanagi, Y. Sunada, K. Hatta, R. Shigesada,M. Sumino, Md. Anwarul Islam, C. Suzuki H. Okuno and S. Namba, The 30th International Toki Conference on Plasma and Fusion Research, Nov. 16-19 2021, Toki, Japan.

55. “Development and optimization of cascaded arc plasma source in TPD-II”, Y. Hayashi, Y. Hamaji, S. Masuzaki, N. Ezumi, N. Ohno, S. Namba and M. Takagi, ISPlasma 2022 / IC-PlANTS 2022, Nagoya, 6-10 Mar. 2022 (web meeting).

56. “Measurement of Auger electrons in BISER X-rays and Xe interaction by using a magnetic bottle electron spectrometer” H. Ohiro, A.S. Pirozhkov, K. Ogura, A. Sagisaka, T.A. Pikuz , K. Huang, M. Kando , K. Yamasaki  and S. Namba, OPIC ALPS2022, Apr.18-21 (2022).

57. “Optimal target thickness and spot size for the water-window X-ray generation from the laser-produced Au plasma”, J.H. Wang, M. Kishimoto, T. Johzaki, K. Murakami, C. Kumeda, T. Higashiguchi, A. Sunahara, H. Ohiro, K. Yamasakiand S. Namba, OPIC ALPS2022, Apr.18-21 (2022).

58. “Generation of highly charged Au ion in laser-produced plasma for water window X-ray radiation sources”, J. Wang, S. Namba et al, HCI 2022, Matsue 29th Aug.-3rd. Sep (2022).

59. “Enhancement of gain coefficient of Li-like Al ion 3d-4f soft X-ray laser oscillation by a single resonator”, S. Namba, J. Wang, HCI 2022, Matsue 29th Aug.-3rd. Sep. (2022).

60. “The effect of radiation trapping on the ambient gas pressure in a stationary high-density He arcjet plasma” K. Okuda, O. Yanagi, Y. Sunada, J. Kono, D. Mori, A. Saito, M. Takagi, N. Ohno, N. Tamura, Y. Hayashi, Y. Hamaji, S. Masuzaki, H. Okuno, K.Yamasaki and S.Namba, Gaseous Electric Conference, 3rd Oct-7th Oct. Sendai

61. “Development of an alternative differential pumping system by virtual vacuum interface plasma window” Y. Sunada, K. Okuda, O. Yanagi, J. Kono, D. Mori, A. Saitou, M. Takagi, N. Ohno, N. Tamura, Y. Hayashi, Y. Hamaji, S. Masuzaki, H. Okuno, K.Yamasaki, and S.Namba, Gaseous Electric Conference, 3rd Oct-7th Oct. Sendai

62. “High-viscous Ar plasma generation for plasma window application to electron beam welding in atmosphere”, O. Yanagi, K. Okuda, Y. Sunada, J. Kono D. Mori A. Saitou, M. Takagi, N. Ohno, N. Tamura, Y. Hayashi, Y. Hamaji, S. Masuzaki, H. Okuno, K.Yamasaki, and S.Namba, Gaseous Electric Conference, 3rd Oct-7th Oct. Sendai

63. J. Wang OPIC　2023

64. “Electron spectra in BISER harmonic radiation-Xe gas interaction”, S. Namba, H. Ohiro, A.S. Pirozhkov and M. Kando, OPIC ALPS2023 Apr.18-21 (2023)

65. “Absorption length dependence of He I resonance line in He arcjet plasma” K. Okuda, H. Kawazome A. Saito, J. Kono, R. Hamada, Y. Kanbara, R. Suzuki1 N. Ohno,N. Tamura, Y. Hayashi, Y. Hamaji, S. Masuzaki, H. Okuno, K.Yamasaki and S. Namba, AAPPS-DPP, 12-17 Nov. (2023)

66. Generation of high-order harmonics radiations around 13.5 nm by using

67. a T-shaped He gas tube, K. Mizushima, J. Seres, E. Seres. C. Serrat, T.-H. Dinh, N. Hasegawa, M. Ishino, T. Niinuma，M. Kume5 T. Higashiguchi, K. Yamasaki, and S. Namba, AAPPS-DPP, 12-17 Nov. (2023).

68. “Development of large channel diameter plasma window using indirectly heated hollow cathode” K. Yamasaki1, K. Okuda1, J. Kono1, A. Saito1, D. Mori1, Y Sunada1, O. Yanagi1,P. Yiming2, K. Tomita3, N. Tamura4, H. Okuno5, and S Namba, AAPPS-DPP, 12-17 Nov. (2023). Invited

69. “Water window X-ray microscopy based on laser produced Au plasma”, J.H. Wang, M. Kishimoto, T. Johzaki, T. Higashiguchi, A. Sunahara, H. Ohiro, K. Yamasaki and S. Namba, invited AAPPS-DPP 2023

70. “Measurement of electron energy spectra in BISER harmonic radiation-Xe gas interaction”, S. Namba , A.S. Pirozhkov and M. Kando, OPIC ALPS Apr.22-26 (2024) Yokohama

71. “Generation of high-order harmonics by using long interaction He gas tube”, S. Namba1, K. Mizushima, J. Seres, E. Seres, C. Serrat, T.-H. Dinh, N. Hasegawa, M. Ishino, T. Niinum5, M. Kume, K. Yamasaki and T. Higashiguchi, OPIC ALPS Apr.22-26 (2024) Yokohama.

72. “Enhancement of laser produced Sn plasma EUV emission by multi-pulse YAG laser irradiations”, Keishin Watanabe, Yuito Nishii, Maki Kishimoto, Tomoyuki Jozaki, Takeshi Higashiguchi, Atushi Sunahara, Jia hao Wang, Kotaro Yamasaki, Shinichi Namba, OPIC ALPS Apr.22-26 (2024) Yokohama.

73. “Oscillation of 122 nm laser by means of TCE Ne-like Al ion scheme”, Y. Nishii, K. Watanabe, M. Kishimoto, T. Jozaki, J. Wang, K. Yamasaki, S. Namba, OPIC ALPS Apr.22-26 (2024) Yokohama.