Absolute measurement of diffuse and specular reflectance using an FTIR spectrometer with an integrating sphere

Robert A. Shepherd

doi:10.1117/12.21820

1 September 1990 Absolute measurement of diffuse and specular reflectance using an FTIR spectrometer with an integrating sphere

Robert A. Shepherd

Author Affiliations +

Proceedings Volume 1311, Characterization, Propagation, and Simulation of Infrared Scenes; (1990) https://doi.org/10.1117/12.21820
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

A novel method for the absolute measurement of both diffuse and specular reflectance using a Fourier transform infrared spectrophotometer with an integrating sphere is presented. By mounting the sample in the center and referencing off the wall of the sphere, total and diffuse reflectance measurements can be made without having to use a reference sample. The specular reflectance is then calculated as the difference between the total and diffuse curves.

Citation Download Citation

Robert A. Shepherd "Absolute measurement of diffuse and specular reflectance using an FTIR spectrometer with an integrating sphere", Proc. SPIE 1311, Characterization, Propagation, and Simulation of Infrared Scenes, (1 September 1990); https://doi.org/10.1117/12.21820

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