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arXiv · 1404.2383

Single-shot measurement of free-electron laser polarization at SDUV-FEL

Lie Feng·Haixiao Deng·Tong Zhang·Chao Feng·Jianhui Chen·Xingtao Wang·Taihe Lan·Lei Shen·Wenyan Zhang·Haifeng Yao·Xiaoqing Liu·Bo Liu·Dong Wang
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Abstract

In this paper, a division-of-amplitude photopolarimeter (DOAP) for measuring the polarization state of free-electron laser (FEL) pulse is described. The incident FEL beam is divided into four separate beams, and four Stokes parameters can be measured in a single-shot. In the crossed-planar undulators experiment at Shanghai deep ultraviolet FEL test facility, this DOAP instrument constructed in house responses accurately and timely while the polarization-state of fully coherent FEL pulses are switched, which is helpful for confirming the crossed-planar undulators technique for short-wavelength FELs.

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Lie Feng, Haixiao Deng, Tong Zhang, Chao Feng, Jianhui Chen, Xingtao Wang, Taihe Lan, Lei Shen, Wenyan Zhang, Haifeng Yao, Xiaoqing Liu, Bo Liu, Dong Wang. 2014-04-09. Single-shot measurement of free-electron laser polarization at SDUV-FEL. https://doi.org/10.1088/1674-1137%2F39%2F2%2F028101

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