Pulse characterization during femtosecond laser filamentation in air by two-photon fluorescence measurement

Pulse characterization during femtosecond laser filamentation in air by two-photon fluorescence measurement
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通过双光子荧光测量对空气中飞秒激光成丝过程中的脉冲进行表征

DOI:
10.1007/s00340-011-4480-9
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发表时间:
2011-04
影响因子:
2.1
通讯作者:
W. Liu
W. Liu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Q. Wen;S. Xu;Y. Liu;S. L. Chin;W. Liu

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本文报道了激光脉冲在空气中传播的时间特性。诊断方法是基于双光子荧光测量。结果表明,该方法可以同时定量反演激光脉冲宽度、啁啾率和光束半径。这种简单的技术在实践中将有助于追踪空气中吸附的潜在动力学。
This work reports a temporal characteristic of a laser pulse undergoing filamentation in air. The diagnostic method is based on two-photon fluorescence measurement. The results show that the pulse duration, chirp rate and beam radius could be simultaneously quantitatively retrieved. This simple technique would be useful in practice to trace the underlying dynamics of filamentation in air.
DOI: 10.1364/ol.17.000172
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