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

2013 Fiscal Year Final Research Report

• 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
• Keywords: 原子 / クラスター / 自由電子レーザー / 蛍光 / プラズマ

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
  • Pages: 164021-1 - 164021-5
  • 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 Pages: 164020-1 - 164020-5
  • 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 Pages: 164019-1 - 164019-6
  • 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巻 Pages: 23174-23179
  • 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
  • Year and Date: 20140327-30
• [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
  • Year and Date: 20140111-13
• [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
  • Year and Date: 20131116-17
• [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)
  • Year and Date: 20130720-22
• [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
  • Year and Date: 20130112-14
• [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
  • Year and Date: 20120918-21