软X射线双频光栅剪切干涉法研究

刘正坤; 邱克强; 陈火耀; 刘颖; 徐向东; 付绍军; 王琛; 安红海; 方智恒

doi:10.7498/aps.62.070703

摘要

本文中设计了一种利用软X射线双频光栅作为剪切干涉元件的剪切系统, 使剪切干涉法在软X射线波段得到了应用. 介绍了软X射线双频光栅的结构及衍射特性, 在同步辐射光束线对双频光栅的效率分布进行了测试实验, 两个剪切级次的效率比值高于75%, 干扰级次效率低于5%. 利用软X射线双频光栅为剪切干涉光学元件, 对待测靶进行了静态检测, 得到了对比度高, 稳定的干涉条纹, 验证了该方法在软X射线等离子体密度诊断中的可行性.

关键词:

Abstract

The M-Z interferometer with gratings or multilayer mirrors is widely used in the X-ray laser plasma diagnoses; however, this system is difficult to adjust, and results in the low success rate in experiment. Since wavefront shearing interferometers do not need a separate reference wavefront, they have inherent advantages compared with conventional interferometers. But the absence of shearing element for soft X-ray has restrained the application of the shearing interferometry in soft X-ray measurement. In this paper, a new-structured double-frequency grating was proposed and fabricated that served as the shearing element for soft X-rays, which can promote the application of shearing interferometers in the X-ray laser plasma diagnoses. The diffraction characteristics of the double-frequency grating are analyzed and tested in the synchrotron radiation beams. It is found that the intensity ratio of the two working diffracted beams is over 75%, and the intensity ratio of the rest diffracted beam to the working beam is less than 5%. An X-ray shearing interferometer using a double-frequency grating with 1000 lines/mm and 1002.5 lines/mm gratings was set up, and a clear shear interferogram was obtained. The experimental results demonstrated that the soft X-ray shearing interferometer using double-frequency grating can be applied in the X-ray laser plasma diagnoses.

Keywords:

作者及机构信息

1.
中国科学技术大学国家同步辐射实验室, 合肥 230029;

2.
上海激光等离子体研究所, 上海 201800

基金项目: 国家自然科学基金(批准号: 10975135, 11075146)资助的课题.

Authors and contacts

1.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China;

2.
Shanghai Institude of Laser Plasma, Shanghai 201800, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 10975135, 11075146).

参考文献

[1]	Da Silva L B, Barbee T W, Cauble Jr R, Celliers P, Ciarlo D, Libby S, London R A, Matthews D, Mrowka S, Moreno J C, Ress D, Trebes J E, Wan A S, Weber F 1995 Phys. Rev. Lett. 74 3991
[2]	Wan A S, Barbee T W, Cauble Jr R, Celliers P, Da Silva L B, Moreno J C, Rambo P W, Stone G F, Trebes J E 1997 Phys. Rev. E 55 6293
[3]	Filevich J, Kanizay K, MarconiM C, Chilla J L A, Rrocca J J 2000 Opt. Lett. 25 356
[4]	Smith R F, Dunn J, Nilsen J, Shlyaptsev V N, Moon S, Filevich J, Rocca J J, Marconi M C, Hunter J R, Barbee Jr T W 2002 Phys. Rev. Lett. 89 065004-1
[5]	Wang C, Zheng W D, Fang Z H, Sun J R, Wang W, Xiong J, Fu S Z, Gu Y, Wang S J, Qiao X M, Zhang G P 2010 ActaPhys. Sin. 59 4767 (in Chinese) [王琛, 郑无敌, 方智恒, 孙今人, 王伟, 熊俊, 傅思祖, 顾援, 王世绩, 乔秀梅, 张国平 2010 物理学报 59 4767]
[6]	Wang C, Wang W, Sun J R, Fang Z H, Wu J, Fu S Z, Ma W X, Gu Y, Wang S J, Zhang G P, Zheng W D, Zhang T X, Peng H M, Shao P, Yi K, Lin Z Q, Wang Z S, Wang H C, Zhou B, Chen L Y, Jin C S 2005 ActaPhys. Sin. 54 202 (in Chinese) [王琛, 王伟, 孙今人, 方智恒, 吴江, 傅思祖, 马伟新, 顾援, 王世绩, 张国平, 郑无敌, 张覃鑫, 彭惠民, 邵平, 易葵, 林尊琪, 王占山, 王洪昌, 周斌, 陈玲燕, 金春水 2005 物理学报 54 202]
[7]	Zheng W D, Zhang G P, Wang C, Sun J R, Fang Z H, Gu Y, Fu S Z 2007 ActaPhys. Sin. 56 3984 (in Chinese) [郑无敌, 张国平, 王琛, 孙今人, 方智恒, 顾援, 傅思祖 2007 物理学报 56 3984]
[8]	Chen GH, Chen L, Liu S X 2007 ActaPhotonica. Sin. 36 2192 (in Chinese) [陈光华, 陈林, 刘寿先 2007 光子学报 36 2192]
[9]	Wyant J C 1973 Appl. Opt. 12 2057
[10]	Ming H, Zhou C G, Liu Y, Xie J P, Huo R, Li C F 1994 ActaOpt. Sin. 14 214 (in Chinese) [明海, 周晨冈, 刘宇, 谢建平, 霍然, 李昌烽 1994 光学学报 14 214]
[11]	Liu Y, Tan X, Liu Z K, Xu X D, Hong Y L, Fu S J 2008 Opt. Exp. 14761
[12]	Wyant J C 1974 Appl. Opt. 13 200

施引文献

[1]	Da Silva L B, Barbee T W, Cauble Jr R, Celliers P, Ciarlo D, Libby S, London R A, Matthews D, Mrowka S, Moreno J C, Ress D, Trebes J E, Wan A S, Weber F 1995 Phys. Rev. Lett. 74 3991
[2]	Wan A S, Barbee T W, Cauble Jr R, Celliers P, Da Silva L B, Moreno J C, Rambo P W, Stone G F, Trebes J E 1997 Phys. Rev. E 55 6293
[3]	Filevich J, Kanizay K, MarconiM C, Chilla J L A, Rrocca J J 2000 Opt. Lett. 25 356
[4]	Smith R F, Dunn J, Nilsen J, Shlyaptsev V N, Moon S, Filevich J, Rocca J J, Marconi M C, Hunter J R, Barbee Jr T W 2002 Phys. Rev. Lett. 89 065004-1
[5]	Wang C, Zheng W D, Fang Z H, Sun J R, Wang W, Xiong J, Fu S Z, Gu Y, Wang S J, Qiao X M, Zhang G P 2010 ActaPhys. Sin. 59 4767 (in Chinese) [王琛, 郑无敌, 方智恒, 孙今人, 王伟, 熊俊, 傅思祖, 顾援, 王世绩, 乔秀梅, 张国平 2010 物理学报 59 4767]
[6]	Wang C, Wang W, Sun J R, Fang Z H, Wu J, Fu S Z, Ma W X, Gu Y, Wang S J, Zhang G P, Zheng W D, Zhang T X, Peng H M, Shao P, Yi K, Lin Z Q, Wang Z S, Wang H C, Zhou B, Chen L Y, Jin C S 2005 ActaPhys. Sin. 54 202 (in Chinese) [王琛, 王伟, 孙今人, 方智恒, 吴江, 傅思祖, 马伟新, 顾援, 王世绩, 张国平, 郑无敌, 张覃鑫, 彭惠民, 邵平, 易葵, 林尊琪, 王占山, 王洪昌, 周斌, 陈玲燕, 金春水 2005 物理学报 54 202]
[7]	Zheng W D, Zhang G P, Wang C, Sun J R, Fang Z H, Gu Y, Fu S Z 2007 ActaPhys. Sin. 56 3984 (in Chinese) [郑无敌, 张国平, 王琛, 孙今人, 方智恒, 顾援, 傅思祖 2007 物理学报 56 3984]
[8]	Chen GH, Chen L, Liu S X 2007 ActaPhotonica. Sin. 36 2192 (in Chinese) [陈光华, 陈林, 刘寿先 2007 光子学报 36 2192]
[9]	Wyant J C 1973 Appl. Opt. 12 2057
[10]	Ming H, Zhou C G, Liu Y, Xie J P, Huo R, Li C F 1994 ActaOpt. Sin. 14 214 (in Chinese) [明海, 周晨冈, 刘宇, 谢建平, 霍然, 李昌烽 1994 光学学报 14 214]
[11]	Liu Y, Tan X, Liu Z K, Xu X D, Hong Y L, Fu S J 2008 Opt. Exp. 14761
[12]	Wyant J C 1974 Appl. Opt. 13 200

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