Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating

doi:10.3390/s22197291

CIOMP OpenIR

	Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating
	Q. Y. Wang; H. H. Shen; W. Q. Liu; J. Z. Zhang and L. T. Meng
	2022
发表期刊	Sensors
卷号	22 期号:19 页码:23
摘要	A traditional flat-panel spectrometer does not allow high-resolution observation and miniaturization simultaneously. In this study, a compact, high-resolution cross-dispersion spectrometer was designed based on the theoretical basis of echelle grating for recording an infrared spectrum. To meet the high-resolution observation and miniaturization design requirements, a reflective immersion grating was used as the primary spectroscopic device. To compress the beam aperture of the imaging system, the order-separation device of the spectrometer adopted toroidal uniform line grating, which had both imaging and dispersion functions in the spectrometer. The aberration balance condition of the toroidal uniform line grating was analyzed based on the optical path difference function of the concave grating, and dispersion characteristics of the immersed grating and thermal design of the infrared lens were discussed based on the echelle grating. An immersion echelle spectrometer optical system consisting of a culmination system, an immersed echelle grating, and a converged system was used. The spectrometer was based on the asymmetrical Czerny-Turner and Littrow mount designs, and it was equipped with a 320 x 256 pixel detector array. The designed wavelength range was 3.7-4.8 mu m, the F-number was 4, and the central wavelength resolution was approximately 30,000. An infrared cooling detector was used. The design results showed that, in the operating band range, the root implied that the square diameter of the spectrometer spot diagram was less than 30 mu m, the energy was concentrated in a pixel size range, and the spectrometer system design met the requirements.
DOI	10.3390/s22197291
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66539
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	Q. Y. Wang,H. H. Shen,W. Q. Liu,et al. Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating[J]. Sensors,2022,22(19):23.
APA	Q. Y. Wang,H. H. Shen,W. Q. Liu,&J. Z. Zhang and L. T. Meng.(2022).Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating.Sensors,22(19),23.
MLA	Q. Y. Wang,et al."Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating".Sensors 22.19(2022):23.

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