典型文献
How the laser beam size conditions the temporal contrast in pulse stretchers of chirped-pulse amplification lasers
文献摘要：
In this work,we propose and verify experimentally a model that describes the concomitant influence of the beam size and optical roughness on the temporal contrast of optical pulses passing through a pulse stretcher in chirped-pulse amplification laser systems.We develop an analytical model that is capable of predicting the rising edge caused by the reflection from an optical element in a pulse stretcher,based on the power spectral density of the surface and the spatial beam profile on the surface.In an experimental campaign,we characterize the temporal contrast of a laser pulse that passed through either a folded or an unfolded stretcher design and compare these results with the analytical model.By varying the beam size for both setups,we verify that optical elements in the near-and the far-field act opposed to each with respect to the temporal contrast and that the rising edge caused by a surface benefits from a larger spatial beam size on that surface.
文献关键词：
中图分类号：
作者姓名：
Simon Roeder;Yannik Zobus;Christian Brabetz;Vincent Bagnoud
作者机构：
GSI Helmholtzzentrum für Schwerionenforschung GmbH,Darmstadt,Germany;Technische Universit?t Darmstadt,Darmstadt,Germany;Helmholtz-Institut Jena,Jena,Germany
文献出处：
引用格式：
[1]Simon Roeder;Yannik Zobus;Christian Brabetz;Vincent Bagnoud-.How the laser beam size conditions the temporal contrast in pulse stretchers of chirped-pulse amplification lasers)[J].高功率激光科学与工程（英文版）,2022(06):1-7
A类：
stretchers
B类：
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AB值：
0.440605
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