A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System

doi:10.3390/app12168013

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

	A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System
	Q. Y. Wang; H. H. Shen; W. Q. Liu and P. Z. Dai
刊名	Applied Sciences-Basel
	2022
卷号	12 期号:16 页码:14
DOI	10.3390/app12168013
英文摘要	With the emergence of high-performance infrared detectors and the latest progress in grating manufacturing technology, high-resolution and high-sensitivity infrared spectrometers provide new methods for application to many fields, including astronomy and remote sensing detection. Spectral detection has attracted considerable attention due to its advantages of noncontact and stability. To obtain the detailed features of the missile's tail flame spectrum, traditional plane reflection gratings are used as the main dispersive element; however, the instrument's volume will increase with increasing resolution, which is not conducive to remote sensing detection from airborne platforms. Such spectrometers cannot meet high-resolution spectroscopy requirements. To address this problem, this paper proposes an immersion echelle spectrometer combined with a three-mirror astigmatism optical system. High resolution and compact size were achieved. In this paper, a small high-resolution infrared echelle spectrometer optical system was created by combining an off-axis three-mirror anti-astigmatism system, a Littrow structure, and a concave grating Wadsworth imaging device. The optical system operated in the 3.7-4.8 mu m band; the echelle grating worked under quasi-Littrow conditions, while the concave grating was used for auxiliary dispersion to separate overlapping orders. The resolution of the optical system in the entire working band was 23,000-45,000. The optical plane size of the spectrometer was around 360 mm x 165 mm. The results show that the Mid-IR echelle spectrometer achieved high spectral resolution, better than 0.25 cm(-1), meeting missile tail flame detection requirements. This device has the potential for real-time long-range target detection when warheads are destroyed. While this study focuses on the mid-wave infrared band, its approach can also be extended to other infrared bands.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/66732]
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 and P. Z. Dai. A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System[J]. Applied Sciences-Basel,2022,12(16):14.
APA	Q. Y. Wang,H. H. Shen,&W. Q. Liu and P. Z. Dai.(2022).A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System.Applied Sciences-Basel,12(16),14.
MLA	Q. Y. Wang,et al."A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System".Applied Sciences-Basel 12.16(2022):14.