Effect and compensate of grating curvature radius error in Seya-Namioka monochromator

doi:10.3788/CO.20181104.0623

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Effect and compensate of grating curvature radius error in Seya-Namioka monochromator
	Meng, Zhu; Tan, Xin; Bayanheshig; Wang, Wei; Liu, Zhao-Wu; Zhao, Xu-Long
刊名	Chinese Optics
	2018
卷号	11 期号:4 页码:623-629
关键词	Error compensation Monochromators Ray tracing
ISSN号	20951531
DOI	10.3788/CO.20181104.0623
英文摘要	The curvature radius error in the Seya-Namioka grating process can cause defocus aberration, which may have a great impact on the spectral performance of the grating monochromator. Based on the theory of ray tracing, we simulate and analyze the impact of curvature radius error on Seya-Namioka grating. The analysis results show that the length of the entrance and exit arm has a good compensating effect on the curvature radius error. By adjusting the length of the entrance and exit arm, the allowable range of the curvature radius error can be increased to about 2 mm. If the total adjustment amount is not changed and the length of the access arm is arbitrarily changed, the compensation effect is similar. As the error increases, the length of the arm that needs to be adjusted becomes larger, and the excessive error makes the length of the arm unable to be compensated. In addition, changing the angle between the arm and the arm can only compensate for the error of the positive curvature radius. The adjustment angle needed for compensation is too large, which will affect the design structure of the monochromator, and it is not practical to compensate the curvature radius error by changing the angle of the entrance and exit arm. The research results in this paper show that by adjusting the parameters of the grating, the influence of errors can be reduced and the margin of error can be extended. 2018, China Science Publishing & Media LTD. All right reserved.
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/60642]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Meng, Zhu,Tan, Xin,Bayanheshig,et al. Effect and compensate of grating curvature radius error in Seya-Namioka monochromator[J]. Chinese Optics,2018,11(4):623-629.
APA	Meng, Zhu,Tan, Xin,Bayanheshig,Wang, Wei,Liu, Zhao-Wu,&Zhao, Xu-Long.(2018).Effect and compensate of grating curvature radius error in Seya-Namioka monochromator.Chinese Optics,11(4),623-629.
MLA	Meng, Zhu,et al."Effect and compensate of grating curvature radius error in Seya-Namioka monochromator".Chinese Optics 11.4(2018):623-629.