Spaceborne low light imaging based on EMCCD and CMOS

	Spaceborne low light imaging based on EMCCD and CMOS
	Wu, X.; J. Liu; H. Zhou and B. Zhang
	2016
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	45 期号:5
摘要	The lasing spectrum of dye-doped chiral nematic liquid crystal under electric filed was investigated. Two kinds of electrodes were designed to apply transverse electric field to positive liquid crystal cell and longitudinal electric field to negative liquid crystal cell. A 532 nm Nd: YAG pulsed solid-state laser was used to pump the cell. When transverse electric field is applied to positive liquid crystal device, multi-wavelength laser output is obtained in the range of 630 similar to 660 nm. When longitudinal electric field is applied to negative liquid crystal cell, 18. 5 nm tunable output lasing is obtained. The output characteristic of cell was analyzed from the texture of device and the photonic band gap. In the positive liquid crystal cell, the competition of electric moment with twisting moment causes the flow of LC molecule, and the flow of LC molecule leads to a floating photonic band gap. For this reason, not only at the edge of photonic band gap but in the photonic band gap can produce lasing. For negative liquid crystal cell, the pitch shrinks with the increase of electric field. The photonic band gap shows blue-shift with the decrease of pitch. and Lasing wavelength is blue shifted from 681. 0 to 662. 5 nm and the lasing at the edge of photonic band gap. Negative liquid crystal cell has better stability under electric field effect.
文章类型	期刊
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/181722/57284
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wu, X.,J. Liu,H. Zhou and B. Zhang. Spaceborne low light imaging based on EMCCD and CMOS[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2016,45(5).
APA	Wu, X.,J. Liu,&H. Zhou and B. Zhang.(2016).Spaceborne low light imaging based on EMCCD and CMOS.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,45(5).
MLA	Wu, X.,et al."Spaceborne low light imaging based on EMCCD and CMOS".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 45.5(2016).

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