Determination of the far infrared optical constants of η-doped bulk CdxHg1-xTe (CMT) by dispersive fourier transform spectroscopy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Author(s)

  • S.Farjami Shayesteh
  • T. Dumelow
  • T. J. Parker
  • T. I. Benushis
  • S. N. Ershov
  • And 1 others
  • M. I. Vasilevskiy

Detail(s)

Original languageEnglish
Pages (from-to)763-773
Journal / PublicationInternational Journal of Infrared and Millimeter Waves
Volume16
Issue number4
Publication statusPublished - Apr 1995
Externally publishedYes

Abstract

Far infrared phase and amplitude reflectivity measurements have been made on two bulk CdxHg1-xTe mixed crystals with composition x=0.29 and x=0.22 by dispersive Fourier transform spectroscopy (DFTS). The results have been used to calculate the real and imaginary parts of the dielectric function (e{open}′, e{open}″) from the Fresnel relations. A plasma contribution is observed in the spectra in addition to the phonon response. For both samples a broad but weak reflection band around 95-105 cm-1 is observed as well as the expected two-oscillator response from the HgTe-like and CdTe-like optical phonons. This feature is attributed to absorption due to phonon combination bands, but it is too broad to enable assignments to be made. There is no evidence of additional features in the CdTe region due to clustering. © 1995 Plenum Publishing Corporation.

Research Area(s)

  • cadmium mercury telluride, DFTS, far infrared, optical constants, phonon, plasmon

Citation Format(s)

Determination of the far infrared optical constants of η-doped bulk CdxHg1-xTe (CMT) by dispersive fourier transform spectroscopy. / Shayesteh, S.Farjami; Dumelow, T.; Parker, T. J.; Benushis, T. I.; Ershov, S. N.; Vasilevskiy, M. I.

In: International Journal of Infrared and Millimeter Waves, Vol. 16, No. 4, 04.1995, p. 763-773.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal