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

	Diffraction analysis for DMD-based scene projectors in the long-wave infrared
	Han, Q.; J. Z. Zhang; J. Wang and Q. Sun
	2016
发表期刊	Applied Optics
卷号	55 期号:28
摘要	Diffraction effects play a significant role in scene projectors by digital micromirror devices (DMDs) in the long-wave infrared (IR) band (8 to 12 mu m). The contrast provided by these projector systems can become noticeably worse because of the diffraction characteristics of the DMD. The actual diffraction characteristics of the DMD deviate significantly from the predictions of scalar diffraction theory in the long-wave IR. To address this issue, we built a vector diffraction-grating model of the DMD; the diffraction grating model is simulated with MATLAB. Furthermore, we analyze the effect of incident angle and polarization, which are the main factors that decrease the contrast of DMD-based scene projectors in the long-wave IR. Finally, an effective method to improve the contrast of the scene projector system is given, and the maximum contrast of the scene projector system is similar to 0.7. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56952
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. Z. Zhang,J. Wang and Q. Sun. Diffraction analysis for DMD-based scene projectors in the long-wave infrared[J]. Applied Optics,2016,55(28).
APA	Han, Q.,J. Z. Zhang,&J. Wang and Q. Sun.(2016).Diffraction analysis for DMD-based scene projectors in the long-wave infrared.Applied Optics,55(28).
MLA	Han, Q.,et al."Diffraction analysis for DMD-based scene projectors in the long-wave infrared".Applied Optics 55.28(2016).

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