Results
Title

Optical coefficients of Hg<sub>1 − x − y</sub>Cd<sub>x</sub>Eu<sub>y</sub>Se crystals.

Authors

Kovalyuk, T. T.; Maistruk, E. V.; Maryanchuk, P. D.

Abstract

Optical properties of Hg 1 − x − yCd xEu ySe crystals grown by the Bridgman method have been investigated based on the independent reflectance and transmittance measurements, which were performed on a Nicolet 6700 spectrometer at T = 300 K in the wavelength range 0.9 ≤ λ ≤ 26.6 μm. The values of refractive index n, absorption index k, and absorption coefficient α have been determined for the crystals studied. Based on the dependences α = f( hν), the presence of direct allowed interband optical transitions in the crystals is established and the band-gap values are determined. The influence of temperature on the transmittance and band gap are investigated in the range T = 114–300 K.

Subjects

MERCURY compounds; CRYSTAL optics; SELENIUM; OPTICAL properties of metals; CRYSTAL growth; TRANSMITTANCE (Physics); ABSORPTION coefficients; TEMPERATURE effect

Publication

Optics & Spectroscopy, 2013, Vol 115, Issue 6, p848

ISSN

0030-400X

Publication type

Academic Journal

DOI

10.1134/S0030400X13120102