Comparative study on performances of long-wave infrared imaging spectrometers based on offner form and dyson form

	Comparative study on performances of long-wave infrared imaging spectrometers based on offner form and dyson form
	Sun J.; Liu Y.; Li C.; Liu J.; Zhang X.; Sun Q.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:10
摘要	In view of the difficulties in traditional long-wave infrared imaging spectrometer which is hard to realize a high signal-to-noise ratio and miniaturization as well under the weak remote sensing signal, two types of concentric optical systems, Offner convex grating and Dyson concave grating imaging spectrometers, are designed and analyzed under the common numerical apertures (NA) of 0.19 and 0.33 with spectral range of 8~12 \mm. The optimal structures are achieved by optical design software Zemax. The two structures both have a perfect image at NA1=0.19, the size of Offner structure is 245 mm213 mm111 mm, value of modulation transfer function (MTF) is higher than 0.38, spectral resolution is 35 nm, smile is lower than 4.8% and keystone is lower than 12.8%. The size of Dyson structure is 308 mm61 mm49 mm, value of MTF is higher than 0.48, spectral resolution is 12 nm, smile is lower than 0.047% and keystone is lower than 0.138%. Dyson has an ideal image at NA2=0.33 different from Offner. The size of Dyson structure is 317 mm88 mm88 mm, value of MTF is higher than 0.71, spectral resolution is 1 nm, smile is lower than 0.015% and keystone is lower than 0.028%. It is obvious that Dyson structure possesses advantages of larger numerical aperture, smaller volume, higher spectral resolution, higher MTF, lower smile and lower keystone in long-wave infrared wavelengths compared with Offner structure.
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/181722/43798
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun J.,Liu Y.,Li C.,et al. Comparative study on performances of long-wave infrared imaging spectrometers based on offner form and dyson form[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(10).
APA	Sun J.,Liu Y.,Li C.,Liu J.,Zhang X.,&Sun Q..(2014).Comparative study on performances of long-wave infrared imaging spectrometers based on offner form and dyson form.Guangxue Xuebao/Acta Optica Sinica,34(10).
MLA	Sun J.,et al."Comparative study on performances of long-wave infrared imaging spectrometers based on offner form and dyson form".Guangxue Xuebao/Acta Optica Sinica 34.10(2014).

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