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- Title
Optical Properties of Hg<sub>1–x–y</sub>Cd<sub>x</sub>Dy<sub>y</sub>Se Crystals.
- Authors
Kovalyuk, T. T.; Maryanchuk, P. D.; Maistruk, É. V.; Koziarskyi, D. P.
- Abstract
Results of investigations of the optical properties of Hg 1–x–yCd xDy ySe crystals by the Bridgeman method are presented. Based on independent measurements of the reflection and transmission coefficients with a Nicolet 6700 spectrometer at Т = 300 K for wavelengths 0.9 ≤ λ ≤ 26.6 μm, values of the refractive and absorption indices and of the absorption coefficient are determined for the examined crystals. From the dependences α = f(hν) it is established that direct interband optical transitions are allowed in the crystals, and values of the gap width are determined. The effects of the temperature on the transmission coefficient and on the gap width at Т = 118–297 K are investigated.
- Subjects
OPTICAL properties of powders; CRYSTAL optics; SPECTROMETERS; WAVELENGTHS; TEMPERATURE
- Publication
Russian Physics Journal, 2013, Vol 56, Issue 7, p831
- ISSN
1064-8887
- Publication type
Article
- DOI
10.1007/s11182-013-0106-5