INTENSE-FIELD MOLECULAR-SPECTROSCOPY - VIBRATIONAL AND ROTATIONAL EFFECTS IN HARMONIC-GENERATION BY H-2+

被引:17
作者
AUBANEL, EE
ZUO, T
BANDRAUK, AD
机构
[1] Laboratoire de Chimie Théorique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke
来源
PHYSICAL REVIEW A | 1994年 / 49卷 / 05期
关键词
D O I
10.1103/PhysRevA.49.3776
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present results of a complete treatment of electronic, vibrational, and rotational motion in numerical calculation of harmonic generation (HG) of 1064-nm laser radiation by the H-2+ molecular ion for intensities 10(13) less-than-or-equal-to I less-than-or-equal-to 10(14) W/cm2. We show that efficient HG can be enhanced by suppression of photodissociation, a phenomenon which results from vibrational trapping in laser-field-induced potential wells. The HG spectra exhibit peaks clustered around even and odd harmonic orders. All peaks can be assigned to Raman-like transitions between dressed eigenstates of the field-molecule system. Rotational excitation is shown to compete with HG. Thus harmonic generation and photon scattering in molecules holds the promise of a potential diagnostic for molecular stabilization by intense laser fields.
引用
收藏
页码:3776 / 3787
页数:12
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