Spectral files to accompany the paper by Hofmeister, Pitman, Goncharov, and Speck:

"Optical constants of silicon carbide for astrophysical applications. II. Extending optical functions from IR to UV using single-crystal absorption spectra" The Astrophysical Journal (2009).

Download All Data Files Here

betaSiCA.dat is tab delimited text of the merged laboratory absorbance spectrum (λ = 2.5-16.36 μm) of (3C-) β-SiC. The left column is the frequency in wavenumbers. The right column is the chemical absorbance (common logarithm based). The thickness of the sample is 0.34 microns, see text for discussion.

alphSiCA.dat is tab delimited text of the merged laboratory absorbance spectrum of (6H-) α-SiC. The left column is the frequency in wavenumbers. The right column is the chemical absorbance (common logarithm based). The thickness of the sample is 0.54 microns, see text for discussion.

aSiCperA.dat is tab delimited text of the ideal absorbance spectrum for (6H-) α-SiC, ordinary ray (i.e., electric field vector E perpendicular to c crystal axis), calculated from classical dispersion analysis. The left column is frequency in wavenumbers (1/cm) and the right column is absorption coefficient (1/cm).

aSiCperA.dat is tab delimited text of the ideal absorbance spectrum for (6H-) α-SiC, extraordinary ray (i.e., E parallel to c), calculated from classical dispersion analysis. The left column is frequency in wavenumbers (1/cm) and the right column is absorption coefficient (1/cm).

pureSiC_nk.dat is tab delimited text of the real and imaginary indices of refraction for pure SiC (applicable for either 3C β-SiC or 6H α-SiC, ordinary ray), calculated from classical dispersion analysis. The left column is frequency in wavenumbers (1/cm), middle column is n (real index of refraction), and the right column is k (imaginary index of refraction). See Sec. 4.3.3 in paper text for discussion.

impureSiC_nk.dat is tab delimited text of the real and imaginary indices of refraction for impure SiC (applicable for either 3C β-SiC or 6H α-SiC, ordinary ray), calculated from classical dispersion analysis. The left column is frequency in wavenumbers (1/cm), middle column is n (real index of refraction), and the right column is k (imaginary index of refraction). See Sec. 4.3.3 in paper text for discussi on.



© 2009. All rights reserved.
Anne M. Hofmeister
Department of Earth & Planetary Sciences
Washington University, St. Louis, Missouri, USA