スギモリ　キミカズ
  杉森　公一
   所属   高等教育推進センター
   職種   教授
言語種別 英語
発行・発表の年月 2005/12
形態種別 学術論文
査読 査読あり
標題 Theoretical study of multiphoton processes in diatomic molecules
執筆形態 共著
掲載誌名 INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
掲載区分国外
出版社・発行元 WILEY
巻・号・頁 105(6),pp.596-604
担当区分 筆頭著者
著者・共著者 K Sugimori, T Ito, H Nagao, K Nishikawa
概要 We adopt the Morse oscillator model for the vibrational state of molecules and simulate the population transfer between vibrational levels caused by molecule-laser interaction. The ground-state energy is calculated by the quadratic configurational interaction (QCISD) level ab initio molecular orbital calculation, and the potential energy curve of the ground state is fitted by the Morse potential curve to evaluate the discrete vibrational levels. An intense laser field generally causes the nonlinear optical processes in molecules, such as multiphoton excitation and ionization. We investigate the 1-, 2-, 3-, and 4-photon absorption processes in H-2 and OH molecules in relation to the laser intensity in the picosecond (ps) regime. We also apply the stimulated Raman adiabatic passage (STIRAP) method to the efficient generation of the highly vibrational excited state, using a couple of the simultaneous 2-photon absorption processes as the Stokes and pump processes.
DOI 10.1002/qua.20781
ISSN 00207608