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4月8日学术报告通知

来源： 发布时间：2013-04-02【字体：大 中 小】

 

题目：Molecular Manipulation by Ultrafast Laser Pulses

姓名：Yehiam Prior

单位：以色列魏茨曼科学研究所

时间：2013年4月8号（周一）上午9：45

地点：溢智厅

简历请查看附件

摘要: Molecules in the gas or liquid phases are generally randomly distributed and isotropically oriented in space. Thus, the determination and the measurement of properties such as chemical reaction rates or optical properties are, by necessity, averages over all orientations.  Femtosecond laser pulses enable molecular manipulation on time scales faster than the internal rotational and vibrational degrees of freedom, opening the way to the addressing of aligned and oriented molecules.  

In this talk I will review molecular alignment and control, and will discuss selective excitation of like species.  The creation of unidirectional molecular rotation by a sequence of laser pulses and its observation by the rotational Doppler effect will also be described. If time permits, I will present predictions for the formation of vortices driven by the laser induced rotational motion of the molecules.

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