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Chin. Phys. B, 2020, Vol. 29(5): 054101    DOI: 10.1088/1674-1056/ab81f0
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Single-order soft x-ray spectra with spectroscopic photon sieve

Yu-Lin Gao(高宇林)1,2, Lai Wei(魏来)3, Qiang-Qiang Zhang(张强强)3, Zu-Zua Yang(杨祖华)3, Wei-Min Zhou(周维民)3, Lei-Feng Cao(曹磊峰)3
1 Hi-tech Research and Development Centre, China Academy of Engineering Physics, Beijing 100094, China;
2 China Jiuyuan Hi-Tech Equipment Corporation Limited, Beijing 100094, China;
3 National Key Laboratory for Laser Fusion, Research Center of Laser Fusion, Mianyang 621900, China
Abstract  A single-order diffraction transmission grating named spectroscopic photon sieve (SPS) for soft x-ray region is proposed and demonstrated in this paper. The SPS consists of many circular pinholes located randomly, and can realize both free-standing diffractions and the suppression of higher-order differations. In this paper, the basic concept, numerical simulations, and calibration results of a 1000-lines/mm SPS for soft x-ray synchrotron radiation are presented. As predicted by theoretical calculations, the calibration results of a 1000-lines/mm SPS verify that the higher-order diffractions can be significantly suppressed along the symmetry axis. With the current nanofabrication technique, the SPS can potentially have a higher line density, and can be widely used in synchrotron radiation, laser-induced plasma diagnostics, and astrophysics.
Keywords:  higher-order diffraction suppression      extreme ultraviolet and soft x-rays      single-order diffraction grating  
Received:  13 July 2019      Revised:  26 December 2019      Published:  05 May 2020
PACS:  41.85.Si (Particle beam collimators, monochromators)  
  42.25.Fx (Diffraction and scattering)  
  42.79.Dj (Gratings)  
Fund: Project supported by the National Natural Science Foundation for Young Scientists of China (Grant No. 11805179).
Corresponding Authors:  Lei-Feng Cao     E-mail:  leifeng.cao@caep.cn

Cite this article: 

Yu-Lin Gao(高宇林), Lai Wei(魏来), Qiang-Qiang Zhang(张强强), Zu-Zua Yang(杨祖华), Wei-Min Zhou(周维民), Lei-Feng Cao(曹磊峰) Single-order soft x-ray spectra with spectroscopic photon sieve 2020 Chin. Phys. B 29 054101

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