掠入射多包含角平面光栅单色器的设计  

Design of Grazing Incident Multi-Included-Angle Plane Grating Monochromator

作　　者：彭倩[1,2] 魏来[1] 范全平[1] 杨祖华[1] 王心怡[1] 张强强[1] 易有根[2] 曹磊峰[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心等离子体物理重点实验室,四川绵阳621900 [2]中南大学物理与电子学院,湖南长沙410083

出　　处：《激光与光电子学进展》2017年第2期261-265,共5页Laser & Optoelectronics Progress

基　　金：国家重大科学仪器开发专项(2012YQ130125);国家自然科学基金(11375160)

摘　　要：介绍了一种掠入射式多包含角平面光栅单色器的设计原理,从理论上对其可行性进行了分析和验证。该单色器系统对SX-700型单色器进行了改进,通过简单地升降多角平面反射镜即可对覆盖某个波长范围的包含角进行改变,选择所需的单色光波长。通过光学仿真软件X-LAB模拟了光束入射到多角平面反射镜的单个角度的反射面时,单色器对软X射线波段1~2.48nm的单色化效果,从理论上验证了本设计能够实现宽能谱扫描及高次谐波的抑制,并且该单色器结构简单,易于在实际应用中得以推广。The design principle of a grazing incident multi-included-angle plane grating monochromator is introduced, and the feasibility of the monochromator is analyzed and verified theoretically. This system is an improvement of SX-700 monochromator. Rising or falling the multi-angle plane reflection mirror can easily change the included-angle of covering a certain wavelength range, thus the desired wavelength of monochromatic light is chosen. Also, the monochromatization effect with X-LAB optical simulation software by monochromator at soft X- ray region 1-2.48 nm are simulated when the light incidents in the reflecting surface of a certain angular in multi- angle plane reflection mirror. This proves in theory that the wide energy spectrum scanning and high harmonics suppression can be realized with the proposed design. Furthermore, the structure of the monochromator is simple, which makes it easy to popularize for practical applications.

关 键 词：光学器件 平面光栅单色器 多角平面反射镜 软X射线 谐波抑制 

分 类 号：O434.1[机械工程—光学工程]