Enhancement of molecular field-free orientation by utilizing rovibrational excitation

被引：11

作者：

Hu, Wen-Hui ^{[1
]}

Shu, Chuan-Cun ^{[1
]}

Han, Yong-Chang ^{[1
]}

Yuan, Kai-Jun ^{[1
]}

Cong, Shu-Lin ^{[1
]}

机构：

[1] Dalian Univ Technol, Dept Phys, Dalian 116024, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 474卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

LASER; ALIGNMENT; HF; DYNAMICS; STATES;

D O I：

10.1016/j.cplett.2009.04.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have demonstrated that field-free molecular orientation induced by a terahertz half-cycle pulse can be considerably enhanced by rovibrational selective excitation. The excitation process is controlled by infrared laser pulses. The calculations are performed by solving numerically the full time-dependent Schrodinger equation for the HF molecule including molecular rovibrational degrees of freedom at finite rotational temperature. The effect of molecular structure on the field-free orientation is discussed by comparing HF with LiH molecules. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：222 / 226

页数：5

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