Design of long-wave infrared imaging spectrometer with eliminating spectral curvature

	Design of long-wave infrared imaging spectrometer with eliminating spectral curvature
	Zhang X.-L.; Liu Y.; Sun Q.; Li C.; Zhou H.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:2 页码:266-273
摘要	To achieve the long-wave infrared hyperspectral imaging for remote sensing targets and to eliminate the spectral curvature of a plane grating effectively, a long-wave infrared imaging spectrometer with an off-axis lens was designed. The spectral curvatures from the plane grating and a single off-axis lens were calculated, respectively, and the relationships between spectral curvatures and relative parameters were analyzed, then an initial structure for eliminating spectral curvature was designed. The optical system optimized shows an aperture of 100 mm, F number of 2, spectral resolution of 20 nm, spatial resolution of 150 rad, and a cold aperture efficiency of 100%. Moreover, its image quality is close to the diffraction limit and the spectral curvature of system changes from more than 180 m to less than 14.3 m. The design obtains a universal eliminating spectral curvature formula, and proves that the off-axis lens has the function to eliminate spectral curvature. It concludes that the imaging spectrometer of plane grating using off-axis lens can offer a spectral curvature less than half the pixel size of the detector without increasing the system complexity, which meets the use request on the premise of satisfying imaging quality.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43865
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang X.-L.,Liu Y.,Sun Q.,et al. Design of long-wave infrared imaging spectrometer with eliminating spectral curvature[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(2):266-273.
APA	Zhang X.-L.,Liu Y.,Sun Q.,Li C.,&Zhou H..(2014).Design of long-wave infrared imaging spectrometer with eliminating spectral curvature.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(2),266-273.
MLA	Zhang X.-L.,et al."Design of long-wave infrared imaging spectrometer with eliminating spectral curvature".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.2(2014):266-273.

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