This article is cited in 2 papers

Optical properties

IR transmission and reflection spectra of structures with ZnTe and ZnTe/ZnMgTe quantum wires

V. S. Vinogradov^a, I. V. Kucherenko^a, N. N. Novikova^b, V. A. Yakovlev^b, E. Janik^c, T. Wojtowicz<sup>c

a</sup> P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow
^c Institute of Physics, Polska Academy of Sciences, Warsaw, Polska

Abstract: The IR transmission and reflection spectra of ensembles of one-layer (ZnTe) and two-layer (ZnTe/ZnMgTe) quantum wires have been measured in $s$- and $p$-polarized light. The optical parameters of the structures and the material/vacuum volume ratio have been found by dispersion analysis. The frequencies of IR-active modes have been calculated using a quasi-electrostatic approximation and models of prolate ellipsoid and two-layer cylinders. The spectra of ensembles of ZnTe nanowires differ little from the spectrum of bulk ZnTe, exception for some softening of the LO-like mode. The spectra of two-layer ZnTe/ZnMgTe nanowires contain interface modes along with the TO-like mode. The calculated and measured data agree well.

Received: 11.05.2011

 English version: Physics of the Solid State, 2012, 54:1, 106–110

Bibliographic databases:

•