Enhancing the energy of terahertz radiation from plasma produced by intense femtosecond laser pulses

• Jahangiri, Fazel

• 橋田, 昌樹

• Tokita, Shigeki

• Nagashima, Takeshi

• Hangyo, Masanori

• Sakabe, Shuji

抄録

Terahertz (THz) radiation from atomic clusters illuminated by intense femtosecond laser pulses is investigated. By studying the angular distribution, polarization properties and energy dependence of THz waves, we aim to obtain a proper understanding of the mechanism of THz generation. The properties of THz waves measured in this study differ from those predicted by previously proposed mechanisms. To interpret these properties qualitatively, we propose that the radiation is generated by time-varying quadrupoles, which are produced by the ponderomotive force of the laser pulse.

収録刊行物

• Applied Physics Letters

  Applied Physics Letters 102 (19), 2013-05

  American Institute of Physics

キーワード

• plasma nonlinear processes
• plasma production by laser
• terahertz wave generation

詳細情報

• CRID: 1050564285723260672
• NII論文ID: 120005245125
• NII書誌ID: AA00543431
• ISSN: 00036951
• HANDLE: 2433/174313
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles