Improvement of fast electron coherence by tuning polarization of ultra-intense laser

• Project/Area Number: 26400537
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plasma science
• Research Institution: The Graduate School for the Creation of New Photonics Industries
• Principal Investigator: MORI Yoshitaka 光産業創成大学院大学, その他の研究科, 准教授 (60440616)
• Co-Investigator(Renkei-kenkyūsha): SUNAHARA Atsushi 公益財団法人レーザー技術総合研究所, 理論・シミュレーションチーム, 研究員 (00370213)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 超高強度レーザー / 偏光制御 / 高速電子 / 高速点火 / レーザープラズマ相互作用

Outline of Final Research Achievements

We conducted experiments by tuning polarization of ultra-intense laser pulses from linear polarization to circular polarization and then irradiating into a solid target. As the results, for the circular polarization, we found that energy population bellow 0.3 MeV was increased for circular polarization. This results indicate a possibility of efficient plasma heating in comparison with usual linear poralization.

Research Products

• [Presentation] 1/4 波長板を用いた超高強度レーザーの偏光制御による高速電子発生 (2017)
  • Author(s): 森芳孝, 西村靖彦, 花山良平, 石井勝弘, 北川米喜, 砂原淳, 千徳靖彦, 川嶋利幸
  • Organizer: レーザー学会学術講演会第37回年次大会
  • Place of Presentation: 徳島大学常三島キャンパス
  • Year and Date: 2017-01-07
• [Presentation] 超高強度レーザーの偏光調整による高速電子温度制御 (2016)
  • Author(s): 森芳孝, 西村靖彦, 花山良平, 石井勝弘, 北川米喜, 砂原淳, 千徳靖彦, 川嶋利幸
  • Organizer: 日本物理学会秋季大会物理学会
  • Place of Presentation: 金沢大学角間キャンパス
  • Year and Date: 2016-09-13