Investigation into the design and diffraction efficiency of shifted dual transmission grating

被引：0

作者：

Wang, Bao-Qing ^{[1
,2
]}

Wang, Chuan-Ke ^{[2
,3
]}

Yi, Tao ^{[2
]}

Li, Ting-Shuai ^{[1
]}

Li, Jin ^{[2
]}

Zhu, Xiao-Li ^{[4
]}

Xie, Chang-Qing ^{[4
]}

Liu, Shen-Ye ^{[2
]}

Jiang, Shao-En ^{[2
]}

Ding, Yong-Kun ^{[2
]}

机构：

[1] School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu

[2] Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, Sichuan

[3] Management Center of Inertial Confinement, China Academy of Engineering Physics, Mianyang, 621900, Sichuan

[4] Institute of Microelectronic, Chinese Academy of Sciences, Beijing

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2015年 / 44卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Diagnostics of laser-produced plasma; Diffraction efficiency; Experimental calibration; Shifted dual transmission grating; Time-resolved spectrum;

D O I：

10.3788/gzxb20154410.1030003

中图分类号：

学科分类号：

摘要：

A Shifted Dual Transmission Grating (SDTG) component has been designed and fabricated in this work, a range of 0.1~5 keV time-resolved spectrum can be recorded when the SDTG coupled with a streak camera. This SDTG is composed of 2000 lines/mm and 5000 lines/mm sub transmission grating which shifted with a certain distance. One of this sub grating is designed to measure the soft X-ray spectrum in 100~1000 eV photon energy while the other measures 1000~5000 eV photon energy. This space-shifted grating can sufficiently use the limited recorded panel to obtain a spliced time-resolved spectrum in streak camera. In this paper, The SDTG component is calibrated to get the diffraction efficiencies on Beijing synchrontron radiation facility, and the related efficiencies was achived. According to the structure parameter of this grating, the absolutely diffraction efficiency value was enentually obtained in combination the experimental values with the rigorous coupled-wave anslysis, meanwhile a method is discussed to unfold the source spectrum from the obtained efficiency. This SDTG component can improve the performance of the spectrometer, and may become an outstanding device to precisely measure x-ray spectra in the diagnostics of laser-produced plasma. ©, 2015, Chinese Optical Society. All right reserved.

引用

页数：5

共 17 条

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