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Dynamic Alignment of D2 Enhanced by Two Few-cycle Pulses
Zeng-qiang Yang*,Zhi-rong Guo,Bao-xiang Yin,Mao-zhu Sun
Author NameAffiliationE-mail
Zeng-qiang Yang* Key Laboratory of Ecophysics and Department of Physics, Normal College, Shihezi University, Shihezi 832003, China ashinafy@yahoo.cn 
Zhi-rong Guo Key Laboratory of Ecophysics and Department of Physics, Normal College, Shihezi University, Shihezi 832003, China  
Bao-xiang Yin Key Laboratory of Ecophysics and Department of Physics, Normal College, Shihezi University, Shihezi 832003, China  
Mao-zhu Sun Key Laboratory of Ecophysics and Department of Physics, Normal College, Shihezi University, Shihezi 832003, China  
Abstract:
Dynamic alignment of D2 induced by two few-cycle pulses was investigated by solving the time-dependent Schr?odinger equation numerically based on a rigid rotor model. The results show that alignment of D2 can be enhanced by two few-cycle pulses compared with the level achievable by a single few-cycle pulse as long as the time delay between two pulses is chosen properly, and the pulse duration of two lasers plays an important role in the aligning process of D2 molecules.
Key words:  Dynamic alignment, Few-cycle pulses, Pulse duration
FundProject:
Dynamic Alignment of D2 Enhanced by Two Few-cycle Pulses
杨增强*,郭志荣,殷保祥,孙茂珠
摘要:
利用数值方法求解D2分子刚性转子模型在超短飞秒激光脉冲作用下的薛定谔方程,计算了双原子分子D2在两束固定强度的飞秒激光脉冲作用下,延迟时间对于分子取向的影响.结果表明,只要选取合适的延迟时间,就能很好改善分子取向;保持两束激光强度不变,通过调整两束脉冲的宽度,选择合适的延迟时间能够进一步有效提高D2分子的取向程度.
关键词:  非绝热取向,超短飞秒脉冲,脉冲宽度
DOI:10.1088/1674-0068/21/05/421-426
分类号: