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Proceedings Paper

Optical properties of polycrystalline diamond films in the far-infrared
Author(s): Andrew J. Gatesman; Robert H. Giles; Jerry Waldman; L. P. Bourget; Richard S. Post
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Paper Abstract

Room temperature Fourier transform spectroscopic transmissivity data in the far-infrared (10 - 360 cm1) 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. Transmission measurements were also made at a frequency of 19. 5 cm1 utilizing a CO2 optically pumped submillimeter laser. Due to their polycrystalline nature the diamond films exhibited a surface roughness with crystallite sizes ranging from 2 -8 p. m. This roughness introduced a diffuse scattering loss at the shorter wavelengths and is accounted for in the determination of the optical properties of the diamond. Residual absorption proportional to 2 is observed at longer wavelengths (1A cm1). 1.

Paper Details

Date Published: 1 December 1990
PDF: 8 pages
Proc. SPIE 1325, Diamond Optics III, (1 December 1990); doi: 10.1117/12.22456
Show Author Affiliations
Andrew J. Gatesman, Univ. of Lowell (United States)
Robert H. Giles, Univ. of Lowell (United States)
Jerry Waldman, Univ. of Lowell (United States)
L. P. Bourget, Applied Science and Technology, Inc. (United States)
Richard S. Post, Applied Science and Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 1325:
Diamond Optics III
Albert Feldman; Sandor Holly, Editor(s)

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