Parametric Model of the Optical Constant Spectra of Hg1 –xCdxTe and Determination of the Compound Composition

V. A. Shvets, D. V. Marin, V. G. Remesnik, I. A. Azarov, M. V. Yakushev, S. V. Rykhlitskii

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A parametric model describing the spectra of optical constants n(λ) and k(λ) of a Hg1 – xCdxTe (MCT) solid solution for the x values in the range from 0.2 to 0.4 is developed. This model is based on empirical data measured in situ during the epitaxial growth of solid-solution layers. Several versions of application of the obtained model for in situ real-time determination of the MCT composition have been considered. A technique for determining the composition using spectral ellipsometric measurements is proposed, which ensures the error of no more than δx = ±0.0035.

Original languageEnglish
Pages (from-to)1948-1953
Number of pages6
JournalOptics and Spectroscopy
Volume128
Issue number12
DOIs
Publication statusPublished - Dec 2020

Keywords

  • compound composition
  • ellipsometry
  • in situ monitoring
  • mercury–cadmium–tellurium
  • optical constant spectra

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

Fingerprint Dive into the research topics of 'Parametric Model of the Optical Constant Spectra of Hg<sub>1 –</sub><sub>x</sub>Cd<sub>x</sub>Te and Determination of the Compound Composition'. Together they form a unique fingerprint.

Cite this