注意：通过透明介质中的丝状化对飞秒激光脉冲进行预脉冲表征。

Note: Pre-pulse characterization of femtosecond laser pulse by filamentation in transparent media.

作者信息

Liu X L, Lu X, Ma J L, Du Z G, He Y, Li Y T, Chen L M, Zhang J

机构信息

Academy of Opto-electronics, Chinese Academy of Sciences, Beijing 100094, China.

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

出版信息

Rev Sci Instrum. 2014 Dec;85(12):126103. doi: 10.1063/1.4903853.

DOI:10.1063/1.4903853

PMID:25554339

Abstract

A new method and associating system has been presented to characterize pre-pulses of femtosecond laser using laser filamentation in transparent media. Pre-pluses of the laser system has been measured experimentally and it is in good agreement with the results obtained by third order cross-correlator. This method can be used for fast detection of temporal laser intensity relatively in order to avoid formation of pre-plasmas before laser matter interaction experiments.

摘要

一种利用透明介质中的激光成丝现象来表征飞秒激光预脉冲的新方法及关联系统已被提出。该激光系统的预脉冲已通过实验测量，并且与三阶互相关仪获得的结果吻合良好。这种方法可用于相对快速地检测激光强度的时间特性，以避免在激光与物质相互作用实验之前形成预等离子体。