The infrared optical constants of a few different powders of chromites, XCr2O4 (where X is Fe, Ni, Mg, Zn, or Cu), have been determined by Kramers—Kronig analysis of their infrared transmission and reflection spectra. The knowledge of these constants allows one to predict the different thin-layer infrared reflection spectra and to compare them, when it is possible, with the reflection spectra calculated with n and k obtained by the use of the classical oscillator method.
© 1996 Optical Society of America
M. M. Tayeb Anki and Benoit Lefez, "Optical constants of various chromites as determined by Kramers—Kronig analysis," Appl. Opt. 35, 1399-1403 (1996)