Probing rotational wave-packet dynamics with the structural minimum in high-order harmonic spectra

被引：9
作者：
Qin, Meiyan [1 ,2 ,3 ]
Zhu, Xiaosong [1 ,2 ,3 ]
Li, Yang [1 ,2 ,3 ]
Zhang, Qingbin [1 ,2 ,3 ]
Lan, Pengfei [1 ,2 ,3 ]
Lu, Peixiang [1 ,2 ,3 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[3] MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 06期
基金：
国家教育部博士点专项基金资助;
关键词：
GENERATION; MOLECULES;
D O I：
10.1364/OE.22.006362
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the alignment-dependent high-order harmonic spectrum generated from nonadiabatically aligned molecules around the first half rotational revival. It is found that the evolution of the molecular alignment is encoded in the structural minima. To reveal the relation between the molecular alignment and the structural minimum in the high-order harmonic spectrum, we perform an analysis based on the two-center interference model. Our analysis shows that the structural minimum position depends linearly on the inverse of the alignment parameter < cos(2)theta >. This linear relation indicates the possibility of probing the rotational wave-packet dynamics by measuring the spectral minima. (C) 2014 Optical Society of America
引用
收藏
页码：6362 / 6371
页数：10
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