20 May 2011 Multiphonon difference band absorption in diamond
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The longwave absorption coefficient of diamond is composed of the two-phonon red wing and multiphonon difference (hot) bands. As temperature increases the difference bands rapidly grow in strength and dominate the absorption. A variation on a multiphonon sum band model is developed for difference bands and applied to a temperature dependent data set on CVD polycrystalline diamond that are 1.54 mm thick. The model can also be used to estimate multiphonon difference band contribution to the refractive index.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael E. Thomas, Michael E. Thomas, "Multiphonon difference band absorption in diamond", Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160H (20 May 2011); doi: 10.1117/12.884095; https://doi.org/10.1117/12.884095


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