Department of Physics, Swami Shraddhanand College, University of Delhi, Delhi 110036, India.
Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Aug 14;129:193-200. doi: 10.1016/j.saa.2014.03.075. Epub 2014 Apr 1.
We investigate theoretically the rotational excitation and field free molecular orientation of polar HBr molecule, interacting with train of ultrashort laser pulses. By adjusting the number of pulses, pulse period and the intensity of the pulse, one can suppress a population while simultaneously enhancing the desired population in particular rotational state. We have used train of laser pulses of different shaped pulse envelopes. The dynamics and orientation of molecules in the presence of pulse train of different shapes is studied and explained.
我们从理论上研究了与超短激光脉冲串相互作用的极性 HBr 分子的转动激发和无场分子取向。通过调整脉冲数、脉冲周期和脉冲强度，可以抑制一个种群，同时同时增强特定旋转态中所需的种群。我们使用了具有不同形状脉冲包络的激光脉冲串。研究并解释了不同形状脉冲串存在下分子的动力学和取向。
