Characterization and modeling of the infrared properties of diamond and SiC

Daniel V. Hahn; Michael E. Thomas; David W. Blodgett; Simon G. Kaplan

doi:10.1117/12.487875

26 September 2003 Characterization and modeling of the infrared properties of diamond and SiC

Daniel V. Hahn, Michael E. Thomas, David W. Blodgett, Simon G. Kaplan

Proceedings Volume 5078, Window and Dome Technologies VIII; (2003) https://doi.org/10.1117/12.487875
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Diamond and Silicon Carbide (SiC) are two of the most durable infrared transmitting window materials available today. Diamond is transparent from 0.25 - 3 μm, exhibits weak absorption in the mid-infrared, and is again transparent from 8 μm well into the microwave range. Silicon Carbide has a single infrared transmission window from a 0.4 - 6 μm. In this paper, experimental characterization of the multiphonon absorption in CVD diamond and various grades of SiC as a function of temperature and frequency is presented. A broadband FTIR transmissometer is used. The temperature range is from 10 to 800 K and the frequency range is from 500 to 5000 cm^-1. Using this experimental data set up updated multiphonon absorption model is developed that represents the experimental data over all temperatures and frequencies.

Citation Download Citation

Daniel V. Hahn, Michael E. Thomas, David W. Blodgett, and Simon G. Kaplan "Characterization and modeling of the infrared properties of diamond and SiC", Proc. SPIE 5078, Window and Dome Technologies VIII, (26 September 2003); https://doi.org/10.1117/12.487875

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