Development of laser-produced plasma light source with free electron laser

• Project/Area Number: 24760051
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: Institute for Molecular Science
• Principal Investigator: IWAYAMA Hiroshi 分子科学研究所, 極紫外光研究施設, 助教 (50584570)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2012: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: 原子 / クラスター / 自由電子レーザー / 蛍光 / プラズマ / イオン / Ｘ線自由電子レーザー

Research Abstract

We have measured fluorescence spectra of rare-gas clusters and helium atoms irradiated intense extreme-ultraviolet free-electron laser pulse. For Argon clusters, we observed rich structure at fluorescence wavelength shorter than incident FEL wavelength of 51nm. It is suggested that multiply charged ions recapture plasma-electrons in nanoplasma of the Argon cluster. For He gas, we found that fluorescence intensities nonlinearly increase with increasing the He atomic density.

Research Products

• [Journal Article] Toward coherent control of SASE pulses using propagation through helium gas at wavelengths corresponding to double excitation (2013)
  • Author(s): J.R. Harries, M. Nagasono, H. Iwayama, E. Shigemasa
  • Volume: 46巻
  • Peer Reviewed
• [Journal Article] Resonant-enhanced three-photon single ionization of Ne by ultrashort extreme-ultraviolet pulses (2013)
  • Author(s): E. Shigemasa, M. Nagasono, H. Iwayama, J.R. Harries, L. Ishikawa
  • Journal Title: J. Phys. B Volume: 46巻
  • Peer Reviewed
• [Journal Article] Frustration of photoionization of Ar nanoplasma produced by extreme ultraviolet FEL pulses (2013)
  • Author(s): H. Iwayama, K. Nagaya, M. Yao, H. Fukuzawa, X-J. Liu, G. Prumper, K. Motomura, K. Ueda, N. Saito, A. Rudenko, L. Foucar, M. Nagasono, A. Higashiya, M. Yabahi, T. Ishikawa, H. Ohashi, H. Kimura
  • Journal Title: J. Phys. B Volume: 46巻
  • Peer Reviewed
• [Journal Article] Frustration of photoionization in Ar nanoplasma produced by extreme ultraviolet FEL pulses (2013)
  • Author(s): H. Iwayama, K. Nagaya, M. Yao, H. Fukuzawa, X.-J. Liu, G. Prümper, K. Motomura, K. Ueda, N. Saito, A. Rudenko, L. Foucar, M. Nagasono, A. Higashiya, M. Yabashi, T. Ishikawa, H. Ohashi, H. Kimura
  • Journal Title: J. Phys. B: At. Mol. Opt. Phys. Volume: 46 Issue: 16 Pages: 1640191-6
  • DOI: 10.1088/0953-4075/46/16/164019
  • Peer Reviewed
• [Journal Article] Resonance-enhanced three-photon single ionization of Ne by ultrashort extreme-ultraviolet pulses (2013)
  • Author(s): E. Shigemasa, M. Nagasono, H. Iwayama, J. R Harries and L. Ishikawa (Okihara)
  • Journal Title: Journal of Physics B : Atomic, Molecular and Optical Physics Volume: 46 Issue: 16 Pages: 1640201-5
  • DOI: 10.1088/0953-4075/46/16/164020
  • Peer Reviewed
• [Journal Article] Towards coherent control of SASE pulses using propagation through helium gas at wavelengths corresponding to double excitation (2013)
  • Author(s): J. R Harries, M. Nagasono, H. Iwayama and E. Shigemasa
  • Journal Title: Journal of Physics B : Atomic, Molecular and Optical Physics Volume: 46 Issue: 16 Pages: 1640211-5
  • DOI: 10.1088/0953-4075/46/16/164021
• [Journal Article] Demonstration of up- conversion fluorescence from Ar clusters in intense free-electron-laser fields (2012)
  • Author(s): H. Iwayama, M. Nagasono, J.R. Harries and E.Shigemasa
  • Journal Title: Optical Express Volume: 20巻 Pages: 23174-23179
  • Peer Reviewed
• [Journal Article] Demonstration of up-conversion fluorescence from Ar clusters in intense free-electron-laser fields (2012)
  • Author(s): H.Iwayama, M. Nagasono, J.R. Harries and E. Shigemasa
  • Journal Title: Optical Express Volume: 20 Issue: 21 Pages: 23174-23179
  • DOI: 10.1364/oe.20.023174
  • Peer Reviewed
• [Presentation] 極紫外自由電子レーザーによるヘリウム原子の集団的蛍光 (2014)
  • Author(s): 岩山洋士
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 神奈川
• [Presentation] 内殻励起した酸素分子の解離ダイナミクスの研究 (2014)
  • Author(s): 岩山洋士、繁政英治
  • Organizer: 第27回放射光学会年会
  • Place of Presentation: 広島
• [Presentation] 極紫外自由電子レーザーによるヘリウム原子の集団的蛍光 (2014)
  • Author(s): 岩山 洋士
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学 湘南キャンパス(神奈川）
  • Invited
• [Presentation] 内殻イオン化による準安定な二価酸素分子イオンの生成 (2013)
  • Author(s): 岩山洋士、繁政英治
  • Organizer: 原子衝突学会第38回年会
  • Place of Presentation: 和光
• [Presentation] Colletive spontaneous emission of He gas irradiated by intense EUV-FEL pulses (2013)
  • Author(s): 岩山洋士
  • Organizer: ISWAMP2 (Intense Field, Short Wavelength Atomic and Molecular Processes)
  • Place of Presentation: Xi'an (China)
• [Presentation] オージェ電子・イオン同期計測による内殻イオン化したC4H5F3O2分子の解離過程の研究 (2013)
  • Author(s): 岩山洋士、石川理沙、繁政英治
  • Organizer: 第26回日本放射光学会年会
  • Place of Presentation: 名古屋
• [Presentation] COLLECTIVE SPONTANEOUS EMISSION OF HE GAS IRRADIATED BY INTENSE EUV-FEL PULSES (2013)
  • Author(s): 岩山 洋士
  • Organizer: Intense Field, Short Wavelength Atomic and Molecular Processes (ISWAMP) 2
  • Place of Presentation: Xi'an (China)
  • Invited
• [Presentation] EUV自由電子レーザー照射Arクラスターの電荷再結合 (2012)
  • Author(s): 岩山洋士、永園充、James Harries、繁政英治
  • Organizer: 日本物理学会秋季学会
  • Place of Presentation: 横浜
• [Presentation] EUV自由電子レーザー照射Arクラスターの電荷再結合 (2012)
  • Author(s): 岩山洋士、永園充、James Harries、繁政英治
  • Organizer: 日本物理学会
  • Place of Presentation: 横浜国立大学(神奈川県）