Broad dual-band kinoform infrared double-layer diffractive optical system design

	Broad dual-band kinoform infrared double-layer diffractive optical system design
	Mao W.; Zhang X.; Qu H.; Zhang J.; Wang L.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:10
摘要	A dual-band infrared optical system working in both mid-wave infrared (MWIR) (3~5 m) and long-wave infrared (LWIR) (8~14 m) has been designed with the double-layer Kinoform diffractive optical elements (DOEs). The system is comprised of four lenses, two ZnS lenses and two ZnSe lenses, and its focal length is 100 mm with F number of 1.2. The average efficiency of double-layer DOEs made of ZnS and ZnSe is more than 96%. The aberration of the system has been improved perfectly. When the Nyquist frequency is less than 14.3 lp/mm, the modulation transfer function (MTF) in MWIR is more than 0.7, which approaches to the diffraction limit. The MTF in LWIR is more than 0.65 in the same frequency. The effect of the efficiency for the MTF has been analysed. Due to the high diffraction efficiency, efficiency is not the main effect element for the performance of the system. A figure generated by the Matlab software shows the curves of the profile of DOEs. The blazed depths of the two kinoform surface have been calculated by the same software, which is 179.3 m amd 159.4 m, respectivly. The minimum feature size of the DOEs is 1.41 mm. It can be manufactured by the single-point diamond tuning (SPDT) technology easily and precisely.
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/181722/43771
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Mao W.,Zhang X.,Qu H.,et al. Broad dual-band kinoform infrared double-layer diffractive optical system design[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(10).
APA	Mao W.,Zhang X.,Qu H.,Zhang J.,&Wang L..(2014).Broad dual-band kinoform infrared double-layer diffractive optical system design.Guangxue Xuebao/Acta Optica Sinica,34(10).
MLA	Mao W.,et al."Broad dual-band kinoform infrared double-layer diffractive optical system design".Guangxue Xuebao/Acta Optica Sinica 34.10(2014).

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