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

Guojin Feng; Yuxuan Ma; Fenchen Liang; Yingwei He

doi:10.1117/12.2548239

12 March 2020 Realization of diffuse reflectance in 3μm-14μm based on auxiliary integrating sphere method

Guojin Feng, Yuxuan Ma, Fenchen Liang, Yingwei He

Proceedings Volume 11434, 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 114340V (2020) https://doi.org/10.1117/12.2548239
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

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.

Citation Download Citation

Guojin Feng, Yuxuan Ma, Fenchen Liang, and Yingwei He "Realization of diffuse reflectance in 3μm-14μm based on auxiliary integrating sphere method", Proc. SPIE 11434, 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 114340V (12 March 2020); https://doi.org/10.1117/12.2548239

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