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Proceedings Paper

Realization of diffuse reflectance in 3um-14um based on auxiliary integrating sphere method
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Paper Abstract

To realize spectral diffuse reflectance scale in mid-infrared waveband in 0/d geometric condition at National Institute of Metrology in China (NIM), a facility based on auxiliary integrating sphere method has been built up. An integrating sphere (diameter 100mm) coated with gold and series of gold plate were used for calculating the reflectance. The uncertainty of spectral diffuse reflectance in NIM is approximately less than 3.0% (k = 2) in 3μm -14μm.

Paper Details

Date Published: 12 March 2020
PDF: 8 pages
Proc. SPIE 11434, 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 114340V (12 March 2020); doi: 10.1117/12.2548239
Show Author Affiliations
Guojin Feng, National Institute of Metrology (China)
Yuxuan Ma, National Institute of Metrology (China)
Fenchen Liang, National Institute of Metrology (China)
Yingwei He, National Institute of Metrology (China)


Published in SPIE Proceedings Vol. 11434:
2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Juan Liu; Baohua Jia; Xincheng Yao; Yongtian Wang; Takanori Nomura, Editor(s)

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