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	Coherent thermal radiation in thin films and its application in the emissivity design of multilayer films
	Liang XinGang ; Han MaoHua
	2010-05-10 ; 2010-05-10
关键词	thermal radiation thin film cvoherence emissivity multilayer film NEAR-FIELD SILICON MODES Multidisciplinary Sciences
中文摘要	The infrared transmission spectra of a 0.54-mu m-thick Ge film and a 20-mu m-thick Si film were experimentally measured. As the incident radiation was in the wavelength range from 1.5 mu m to 10 mu m, the Ge film demonstrated a strongly spectral coherence. However, thermal radiation of the Ge film was found to be spatially incoherent due to its extreme thinness. The Si film exhibited significantly spectral and spatial coherence. The results confirmed that thermal radiation of a monolayer film could be coherent spectrally and spatially if the film thickness was comparable with the wavelength. The optical characteristic matrix method was applied to calculate the transmission spectra of the Si and Ge film, and the results agreed well with the measurements. This method was further used to analyze two multilayer films composed of five low emissive layers. Their emissivities were found to be highly emissive at a certain zenith angle, and the emissive peak could be controlled by careful selection of film thickness.
语种	英语 ; 英语
出版者	SCIENCE CHINA PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22497]
专题	清华大学
推荐引用方式 GB/T 7714	Liang XinGang,Han MaoHua. Coherent thermal radiation in thin films and its application in the emissivity design of multilayer films[J],2010, 2010.
APA	Liang XinGang,&Han MaoHua.(2010).Coherent thermal radiation in thin films and its application in the emissivity design of multilayer films..
MLA	Liang XinGang,et al."Coherent thermal radiation in thin films and its application in the emissivity design of multilayer films".(2010).

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