Maan Anjali, Tyagi Ashish, Prasad Vinod
Department of Physics, Chaudhary Devi Lal University, Sirsa 125055, Haryana, India; Department of Physics, Pt.N.R.S.G.C.Rohtak, Maharshi Dayanand University, Rohtak 124001, Haryana, India.
Department of Physics, Swami Shraddhanand College, University of Delhi, Delhi 110036, Delhi, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Jan 5;188:268-275. doi: 10.1016/j.saa.2017.07.012. Epub 2017 Jul 13.
A theoretical model of NAREX (non-adiabatic rotational excitation) and field-free molecular orientation by a short specific elliptically polarised laser pulses (EPLPs) driving a polar molecule is presented. By choosing the proper value of elliptically polarised field parameters, efficient field-free orientation could be achieved. It is demonstrated that NAREX can be controlled by various laser parameters, out of which pulse shape plays the most significant role. The effect of elliptic parameter on the rotational excitation and orientation dynamics is also under concern.
本文提出了一种非绝热转动激发（NAREX）的理论模型，以及通过驱动极性分子的短特定椭圆偏振激光脉冲（EPLP）实现无场分子取向的方法。通过选择合适的椭圆偏振场参数值，可以实现高效的无场取向。结果表明，NAREX可以通过各种激光参数进行控制，其中脉冲形状起着最重要的作用。椭圆参数对转动激发和取向动力学的影响也受到关注。
