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Abstract

Optical elements such as stretcher, compressor and thick lenses will lead to spatially-dependent temporal properties of a large aperture laser pulse, which is called spatiotemporal coupling (STC). Beyond pure temporal characterization measurement, a measure of spatiotemporal coupling distortion based on spatial-spectral interference is proposed in this study. Full one-dimensional spatiotemporal coupling characteristics can be obtained in a single-shot measurement, and the complete spatiotemporal coupling characteristics in the near field can be obtained by scanning along another spatial dimension. The spatiotemporal coupling characteristics introduced by the wedge glasses are measured, and the experimental results accord well with the theoretical results.

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Authors and contacts

Corresponding author:Wang Xiao,wangxiaocn@263.net

Funds:Project supported by the Science and Technology Research Project on Plasma Physics Laboratory Independent, China (Grant No. JCKYS2018212024)

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Catalog

Vol. 70, Issue 23 - 2021-12-05

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