A novel single-order diffraction grating： Random position rectangle grating

Spectral diagnosis of radiation from laser plasma interaction and monochromation of radiation source are hot and important topics recently. Grating is one of the primary optical elements to do this job. Although easy to fabricate, traditional diffraction grating suffers from multi-order diffraction...

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Published inChinese physics B Vol. 25; no. 5; pp. 229 - 232
Main Author 杨祖华 张强强 王静 范全平 刘钰薇 魏来 曹磊峰
Format Journal Article
LanguageEnglish
Published 01.05.2016
Subjects
Diagnosis
Diffraction
Diffraction efficiency
Diffraction gratings
Gratings (spectra)
Rectangles
Retarding
Spectra
位置
光谱诊断
单级
单色辐射
激光等离子体相互作用
矩形光栅
衍射光栅
随机
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/25/5/054209

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Summary:Spectral diagnosis of radiation from laser plasma interaction and monochromation of radiation source are hot and important topics recently. Grating is one of the primary optical elements to do this job. Although easy to fabricate, traditional diffraction grating suffers from multi-order diffraction contamination. On the other hand, sinusoidal amplitude grating has the nonharmonic diffraction property, but it is too difficult to fabricate, especially for x-ray application. A novel nonharmonic diffraction grating named random position rectangle grating（RPRG） is proposed in this paper. Theoretical analysis and experiment results show that the RPRG is both higher order diffraction suppressing and not difficult to fabricate. Additionally, it is highly efficient; its first order absolute theoretical diffraction efficiency reaches 4.1%. Our result shows that RPRG is a novel tool for radiation diagnosis and monochromation.
Bibliography:diffraction grating; single order; x-ray
Spectral diagnosis of radiation from laser plasma interaction and monochromation of radiation source are hot and important topics recently. Grating is one of the primary optical elements to do this job. Although easy to fabricate, traditional diffraction grating suffers from multi-order diffraction contamination. On the other hand, sinusoidal amplitude grating has the nonharmonic diffraction property, but it is too difficult to fabricate, especially for x-ray application. A novel nonharmonic diffraction grating named random position rectangle grating（RPRG） is proposed in this paper. Theoretical analysis and experiment results show that the RPRG is both higher order diffraction suppressing and not difficult to fabricate. Additionally, it is highly efficient; its first order absolute theoretical diffraction efficiency reaches 4.1%. Our result shows that RPRG is a novel tool for radiation diagnosis and monochromation.
Zuhua Yang, Qiangqiang Zhang, Yuwei Liu, Lai Wei, Jing Wang, Quanping Fan, and Leifeng Cao（ Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China）
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/5/054209