引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1744次   下载 1265 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Selective Alignment of D2 Induced by Two Ultrashort Laser Pulses
Zeng-qiang Yang*,Zhi-rong Guo,Gui-xian Ge
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  
Gui-xian Ge Key Laboratory of Ecophysics and Department of Physics, Normal College, Shihezi University, Shihezi 832003, China  
Abstract:
The dynamics of molecular rotational wave packets of D2 induced by ultrashort laser pulses was investigated numerically by solving the time-dependent Schrödinger equation. Results show that an ultrashort pulse can manipulate a coherent rotational wave packet of D2 selectively. In the calculation, a first laser pulse was used to create a coherent rotational wave packet from an initial thermal ensemble of D2 at the temperature of 300 K. The second laser pulse was used to manipulate the rotational wave packet selectively around the first quarter and the three quarters revival. The alignment parameter and its Fourier transform amplitude both illustrate that the relative populations of even and odd rotational states in the final rotational wave packet of D2 can be manipulated by precisely selecting the time delay between the first and the second ultrashort pulse.
Key words:  Rotational wave packet, Ultrashort laser pulse, Time delay, Odd and even States
FundProject:
Selective Alignment of D2 Induced by Two Ultrashort Laser Pulses
杨增强*,郭志荣,葛桂贤
摘要:
通过求解D2分子在飞秒激光场中的含时薛定谔方程,研究了室温下D2分子在超快飞秒激光驱动下的的转动波包动力学. 选择用第一束超短飞秒脉冲与温度为300 K的D2分子系综相互作用产生一个相干转动波包,用第二束超短飞秒脉冲在波包的1/4和3/4恢复周期选择操纵D2分子取向. 研究结果表明,通过选择两束超短飞秒脉冲的延迟时间,可以有效控制D2分子转动波包中奇偶态的相对布居,从而选择性的控制D2分子取向.
关键词:  转动波包,超短脉冲,时间延迟,奇偶态
DOI:10.1088/1674-0068/22/03/228-234
分类号: