平场全息凹面光栅制作结构与使用结构之间误差补偿作用的数值模拟与实验验证

doi:10.3964/j.issn.1000-0593.2008.07.008

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Abstract A flat-field holographic concave grating can be the only optical element in a spectrometer. If the mutually compensating roles of the concave grating and the spectrometer are taken into account, the difficulty of fabricating concave grating can be reduced. When the holographic method is used to make concave gratings, it is very difficult to fix precisely the spatial distances between the two recording points and the vertex of concave gratings. In like manner, it is also difficult to fix precisely the location of the entrance slit or the CCD in using concave gratings in spectrometers. In other words, during the fabrication stage and the end-use stage of concave gratings, there are inevitable errors between the practical system structure parameters and the theoretical ones. The authors name them fabrication structure errors and end-use structure errors, respectively. Numerical simulation indicates that these two classes of errors will seriously deteriorate the spectral image quality. At present, there are few references describing the elimination of the fabrication and end-use errors of concave gratings. In this paper, a concave grating used in a compact chromatograph is analyzed as an example. By performing numerical simulations that take both fabrication structure parameters and end-use structure parameters into consideration, we found that in a large neighborhood around the design point, the two sets of parameters can mutually compensate. This means that even both sets are away from the optimized design points, as long as proper compensations are made, the spectral image quality of the spectrometer can be as good as designed. In other words, on the one hand, for a specific concave grating that has been made with some fabrication structure errors, we can move the CCD to find an appropriate location where the spectral image quality is as good as designed; On the other hand, for a decided end-use system which has some end-use structure errors, we can adjust the fabrication structure to make concave gratings that will generate good spectral images in this end-use system. The experiment results show that this method is an effective way to adjust the optical system for grating fabrication. The authors also give experimental results that agree with simulation results. Such compensation can reduce both the alignment difficulty and the required precision of fabrication structure parameters of concave gratings. It could also give theoretical guidance to the design and assembly of spectrometers.

Key words：Spectrometer;Flat-field holographic concave grating;Grating design;Grating fabrication

Received: 2007-09-28 Accepted: 2007-12-29

ZTFLH:

O433.4

Corresponding Authors: ZHOU Qian E-mail: q-zhou03@mails.thu.edu.cn

Cite this article:

ZHOU Qian,ZENG Li-jiang,LI Li-feng. Numerical Simulation and Experimental Demonstration of Error Compensation between Recording Structure and Use Structure of Flat-Field Holographic Concave Gratings[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(07): 1674-1678.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593.2008.07.008 OR https://www.gpxygpfx.com/EN/Y2008/V28/I07/1674

［1］ WU Guo-an(吴国安). Design of Spectroscopic Instruments (光谱仪器设计). Beijing：Science Press(北京：科学出版社)，1978.
［2］ Hutley M C. Diffraction Gratings. Academic Press, 1980.
［3］ ZHU Shao-ji, ZOU Hai-xing, BAO Xue-cheng, et al(祝绍箕，邹海兴，包学诚，等). Diffraction Gratings(衍射光栅). Beijing：Machine Industry Press(北京：机械工业出版社), 1986.
［4］ HUANG Mei-zhen, NI Yi, LIN Feng, et al(黄梅珍，倪一，林峰，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(6)：938.
［5］ Katsuya Goto，Tokihiro Kurosaki. J. Opt. Soc. Am., 1993, 10(3)：152.
［6］ Takeshi Namioka, Masato Koike, David Content. Appl. Opt., 1994, 33(31)：7261.
［7］ McGreer K A. Appl. Opt., 1996, 35(30)：5904.
［8］ WANG Daoyi, YAN Yingbai, JIN Guofan, et al. Proc. SPIE, 2000, 4131：408.
［9］ WANG Daoyi, MN Guofan, YAN Yingbai, et al. Proc. SPIE, 2000, 4223：27.
［10］ Takashi Onaka, Takashi Miyata, Hirokazu Kataza, et al. Appl. Opt., 2000, 39(10)：1474.
［11］ ZHANG Ji-yan, YANG Guo-hong, ZHANG Bao-han, et al(张继彦，杨国洪，张保汉，等). Acta Optica Sinica(光学学报), 2001, 21(9)：1099.
［12］ Bazhanov Y V, Demin A M, Timergazeeva L K, et al. J. Opt. Technol., 2002, 69 (12)：898.
［13］ Sokolova E A, Kruizinga V, De Bruijn D, et al. J. Opt. Technol, 2003, 70(8)：600.
［14］ LI Ying-jun, YANG Jian-lun, ZHANG Jie(李英俊，杨建伦，张杰). Acta Physica Sinica(物理学报), 2000, 49(5)：863.
［15］ LIU Ya-qing, FAN Pin-zhong, XU Zhi-zhan (刘亚青，范品忠，徐至展). Acta Optica Sinica(光学学报), 2000, 20(7)：879.
［16］ Noda H, Namioka T, Seya M. J. Opt. Soc. Am., 1974, 64(8)：1031.
［17］ Mckinney W R，Palmer C. Appl. Opt., 1987, 26(15)：3108.
［18］ LI Chao-ming, WU Jian-hong, TANG Min-xue(李朝明，吴建宏，唐敏学). Laser Journal(激光杂志), 2005, 26(2)：57.
［19］ ZEMAX Reference Manual. ZEMAX Development Corp., 2003.