The relationship between infrared refractive index and near-infrared, visible, and ultraviolet absorption spectra is examined. The long-wavelength limit and dispersion are determined as simple functions of composition. The computed results are compared with infrared ellipsometric measurements.
© 1992 Optical Society of America
Original Manuscript: June 6, 1990
Published: January 1, 1992
Josef Humlíček, Arnulf Röseler, Thomas Zettler, Maria G. Kekoua, and Elza V. Khoutsishvili, "Infrared refractive index of germanium–silicon alloy crystals," Appl. Opt. 31, 90-94 (1992)