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	Diffraction-induced edge contrast enhancement for terahertz imaging
	Wang, Yingxin ; Zhao, Ziran ; Chen, Zhiqiang ; Zhang, Li ; Kang, Kejun
	2010-10-12 ; 2010-10-12
关键词	TIME-DOMAIN SPECTROSCOPY PHASE Optics
中文摘要	Contrast enhancement is particularly important for imaging of weakly absorbing materials. We demonstrate the inherent contrast-enhancement effect at the edges of a transparent object by using a conventional pulsed terahertz imaging setup without additional modification of the system design. We provide both experimental and theoretical evidence suggesting that this effect is a consequence of the frequency-dependent energy loss of the terahertz radiation induced by edge diffraction. The influence of the phase step of the broadband terahertz pulses on the edge contrast is discussed.
语种	英语 ; 英语
出版者	CHINESE OPTICS LETTERS MANUSCRIPT OFFICE ; SHANGHAI ; PO BOX 800-211, SHANGHAI, 201800, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78858]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Yingxin,Zhao, Ziran,Chen, Zhiqiang,et al. Diffraction-induced edge contrast enhancement for terahertz imaging[J],2010, 2010.
APA	Wang, Yingxin,Zhao, Ziran,Chen, Zhiqiang,Zhang, Li,&Kang, Kejun.(2010).Diffraction-induced edge contrast enhancement for terahertz imaging..
MLA	Wang, Yingxin,et al."Diffraction-induced edge contrast enhancement for terahertz imaging".(2010).

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