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首页> 外文期刊>Bulletin of the Russian Academy of Sciences. Physics >Femtosecond laser control of intramolecular vibrations in a liquid
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Femtosecond laser control of intramolecular vibrations in a liquid

机译:飞秒激光控制液体中分子内的振动

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摘要

Optical control of coherent intramolecular oscillations in chloroform CHCl3 and dimethyl sulfoxide (CH _3) _3SO is attained experimentally under normal conditions by means of femtosecond polarization spectroscopy. Nonresonant excitation of the medium is accomplished by a sequence of two linearly polarized laser pulses. The state of the medium is probed by the third pulse via the optical Kerr effect. We show that control over the vibrational dynamics of molecules on a sub-picosecond scale can be achieved by varying the delay between the excitation pulses and their relative intensity.
机译:在正常条件下,通过飞秒偏振光谱法实验性地获得了氯仿CHCl3和二甲基亚砜(CH _3)_3SO中相干分子内振荡的光学控制。介质的非共振激发是通过两个线性偏振激光脉冲序列实现的。介质的状态通过光学克尔效应由第三个脉冲探测。我们表明,可以通过改变激发脉冲及其相对强度之间的延迟来实现亚皮秒级的分子振动动力学控制。

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