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Multiframe observation of an intense femtosecond optical pulse propagating in air

机译:在空中传播的强飞秒光脉冲的多帧观测

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摘要

We have demonstrated femtosecond time-resolved and picosecond time-interval successive observations of a single femtosecond optical pulse propagating in air with ultrafast self-modulation such as filamentation. A quadruple femtosecond probe pulse crossing an intense propagating pulse at picosecond intervals was able to capture directly four successive images of the propagating pulse as in a movie but with femtosecond time resolution. From this observation, we can directly analyze and recognize the propagation process, which is significantly affected by pulse-energy fluctuation, and (or) atmospheric turbulence from shot to shot.
机译:我们已经展示了飞秒时间分辨和皮秒时间间隔的连续观测,这些观测是在空气中传播的飞秒光脉冲具有超快自调制(例如细丝化)的结果。与飞秒时间间隔内的强传播脉冲相交的四倍飞秒探测脉冲能够像电影中一样直接捕获传播脉冲的四个连续图像。从该观察结果中,我们可以直接分析和识别传播过程,该过程受脉冲能量波动和(或)每次发射的大气湍流的影响很大。

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