Diffraction characteristics analysis for DMD-based scene projectors in the long-wave infrared

	Diffraction characteristics analysis for DMD-based scene projectors in the long-wave infrared
	Han, Q.; J. Wang; Z. Xiong; J. Zhang; J. Ma; Y. Liu and Q. Sun
	2017
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	46 期号:5
摘要	Diffraction effects play a significant role in DMD-based scene projection in the long-wave infrared band (8-12 m). The contrast provided by these projector systems can become noticeably worse because of the diffraction effect of the DMD. So it is necessary to analyze the diffraction characteristics of DMD when it is applied to DMD-based scene projector in this wavelength band. Firstly, DMD was treated as a special blazed grating, and a grating diffraction model of DMD was constructed by diffraction theory and Fourier transform. Then, simulation calculation was conducted in MATLAB environment. Finally, the simulation result was verified by experiment of scene projection. It is shown that there exists a suitable illuminating incident angle range to achieve high contrast image in the long-wave infrared (8-12 m) band. When incident azimuth angle is 0 and incident zenith angle is between 44 and 48, the scene projector will have a good imaging contrast. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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/181722/58928
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Han, Q.,J. Wang,Z. Xiong,et al. Diffraction characteristics analysis for DMD-based scene projectors in the long-wave infrared[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2017,46(5).
APA	Han, Q.,J. Wang,Z. Xiong,J. Zhang,J. Ma,&Y. Liu and Q. Sun.(2017).Diffraction characteristics analysis for DMD-based scene projectors in the long-wave infrared.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,46(5).
MLA	Han, Q.,et al."Diffraction characteristics analysis for DMD-based scene projectors in the long-wave infrared".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 46.5(2017).

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