Molecular orbital imaging via above-threshold ionization with circularly polarized pulses

被引：28

作者：

Zhu, Xiaosong ^{[1
]}

Zhang, Qingbin ^{[1
]}

Hong, Weiyi ^{[1
]}

Lu, Peixiang ^{[1
,2
]}

Xu, Zhizhan ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Wuhan Inst Technol, Sch Sci, Wuhan 430073, Peoples R China

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 15期

基金：

中国国家自然科学基金;

关键词：

FIELD;

D O I：

10.1364/OE.19.013722

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Above-threshold ionization (ATI) for aligned or orientated linear molecules by circularly polarized laser pulsed is investigated. It is found that the all-round structural information of the molecular orbital is extracted with only one shot by the circularly polarized probe pulse rather than with multi-shot detections in a linearly polarized case. The obtained photoelectron momentum spectrum directly depicts the symmetry and electron distribution of the occupied molecular orbital, which results from the strong sensitivity of the ionization probability to these structural features. Our investigation indicates that the circularly polarized probe scheme would present a simple method to study the angle-dependent ionization and image the occupied electronic orbital. (C) 2011 Optical Society of America

引用

页码：13722 / 13731

页数：10