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Silicon as a Standard Material for Infrared Reflectance and Transmittance From 2 to 5 m

Published

Author(s)

Simon G. Kaplan, Leonard M. Hanssen

Abstract

We have investigated the specular reflectance and transmittance of polished, high-resistivity single-crystal Si in the spectral range from 2 m to 5 m. Measurements were performed with a nearly collimated (-0.7 divergence) beam at angles of incidence from 12 degrees to 80 degrees, and a spectral resolution of 16 cm-1. The measured values agree with the expected values obtained from the published index of refraction of Si to within +0.002. This represents a substantial reduction in experimental uncertainty compared to previous results and demonstrates the usefulness of Si as a standard material for infrared reflectance and transmittance.
Citation
Infrared Physics and Technology
Volume
43
Issue
No. 6

Keywords

index of refraction, infrared, polarization, reflectance, transmittance`

Citation

Kaplan, S. and Hanssen, L. (2002), Silicon as a Standard Material for Infrared Reflectance and Transmittance From 2 to 5 m, Infrared Physics and Technology (Accessed April 17, 2024)
Created December 1, 2002, Updated February 17, 2017