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无场分子排列取向——啁啾飞秒脉冲

发表时间:2013-02-15  浏览量:1085  下载量:292
全部作者: 吴健
作者单位: 华东师范大学精密光谱科学与技术国家重点实验室
摘 要: 讨论啁啾飞秒激光脉冲对无场分子排列取向的影响。通过分析不同波长、不同啁啾程度的飞秒脉冲诱导的分子排列取向,发现分子取向主要决定于变化极限的激光脉冲参数,而极性分子在双色场脉冲下的取向则随啁啾的增加而减弱,这主要是由脉冲不对称性的改变导致。
关 键 词: 光学;超快非线性光学;分子排列取向;啁啾飞秒脉冲;双色激光场
Title: Field-free molecular alignment and orientation by chirped fs laser pusles
Author: WU Jian
Organization: State Key Laboratory of Precision Spectroscopy, East China Normal University
Abstract: In this paper, we investigated the effects of chirped fs laser pusles on field-free molecular alignment and orientation. Through analysis on molecular alignment and orientation induced by chirped fs laser pulses with different wavelengths and different chirped degree, we found that the molecular orientation was mainly determined by laser pulse parameters within transform limiting. However, due to the change of the asymmetry of pusles, the molecular orientaion degree decreased with the increase of the chirp in dual-color pusles.
Key words: optics; ultrafast nonlinear optics; moelcular alignment and orientation; chirped fs laser pusle; two-color laser field
发表期数: 2013年2月第3期
引用格式: 吴健. 无场分子排列取向——啁啾飞秒脉冲[J]. 中国科技论文在线精品论文,2013,6(3):210-214.
 
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