高密度パルス光と原子・分子との相互作用理論

• 藤村 勇一

  東北大学大学院理学研究科化学専攻

• 河野 裕彦

  東北大学大学院理学研究科化学専攻

書誌事項

タイトル別名

• Electronic Dynamics of Atoms and Molecules in Intense Ultrashort Laser Pulses.

抄録

Electronic dynamics of atoms and molecules in strong femtosecond pulses (≥10¹⁴ Wcm^-2) was investigated by numerically solving the time-dependent Schrödinger equation. Responses to a laser field areclassified into adiabatic and diabatic regimes. The quasi-static adiabatic model for tunnel ionization and higher-order harmonic generation is validated by quantal simulations. Ionization processes of diatomic molecules are analyzed in terms of laser-induced nonadiabatic transitions, dipole interaction energy, and electron correlation. In molecules, adiabaticity means that electron density transfers from nucleus to nucleus every half optical cycle and the electronic motion is strongly correlated with the nuclear motion (leading to reaction control). By changing the frequency and intensity, one could spatially transfer or halt an electron.

収録刊行物

• レーザー研究

  レーザー研究 27 (5), 324-330, 1999

  一般社団法人 レーザー学会

キーワード

• Quantum simulation
• Electronic wavepacket
• Electron tunneling
• Adiabaticity
• Higher-order harmonic generation

詳細情報

• CRID: 1390001204646929664
• NII論文ID: 130003702679
• DOI: 10.2184/lsj.27.324
• ISSN: 13496603
• ISSN: 03870200
• Web Site: http://www.jstage.jst.go.jp/article/lsj1973/27/5/27_5_324/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可