Spectral emissivity and transmissivity measurement for zinc sulphide infrared window based on integrating-sphere reflectometry

被引：6
作者：
Zhang, Yu-Feng [1 ]
Dai, Jing-Min [1 ]
Zhang, Lei [1 ]
Pan, Wei-Dong [1 ]
机构：
[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China
来源：
OPTICAL ENGINEERING | 2013年 / 52卷 / 08期
基金：
中国国家自然科学基金;
关键词：
emissivity; transmissivity; integrating-sphere reflectometry; infrared window; REFLECTANCE;
D O I：
10.1117/1.OE.52.8.087107
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The spectral emissivity and transmissivity of zinc sulphide (ZnS) infrared windows in the spectral region from 2 to 12 mu m and temperature range from 20 to 700 degrees C is measured by a facility built at the Harbin Institute of Technology (HIT). The facility is based on the integrating-sphere reflectometry. Measurements have been performed on two samples made of ZnS. The results measured at 20 degrees C are in good agreement with those obtained by the method of radiant energy comparison using a Fourier transform infrared spectrometer. Emissivity measurements performed with this facility present an uncertainty of 5.5% (cover factor = 2). (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：5
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