1 December 1990 FTIR spectroscopy of CVD and natural diamond
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Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 151423 (1990) https://doi.org/10.1117/12.2301485
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States
Abstract
Fourier transform spectroscopic transmissivity data in the far-infrared (10 - 350 cm-1) were used to derive a model for the complex refractive index (n - ik) of polycrystalline diamond films grown by microwave plasma enhanced chemical vapor deposition. Due to their polycrystalline nature, the diamond films exhibited a surface roughness with crystallite sizes ranging from 0.1 - 8 μm. Scattering of the far-infrared radiation introduced by the diamond's rough surface is shown to have a significant effect on the FTIR spectrum and is accounted for in the determination of the material's optical properties. Free carrier type absorption (k proportional to λ2) is observed at longer wavelengths (l/λ < 100 cm-1).
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. J. Gatesman, A. J. Gatesman, } "FTIR spectroscopy of CVD and natural diamond", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 151423 (1 December 1990); doi: 10.1117/12.2301485; https://doi.org/10.1117/12.2301485
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