Two-photon magnetoabsorption spectroscopy in n-InSb with cw CO2 lasers

M. W. Goodwin, D. G. Seiler, and M. H. Weiler
Phys. Rev. B 25, 6300 – Published 15 May 1982
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Abstract

High-resolution two-photon magnetoabsorption (TPMA) spectra are obtained for eB and e||B polarizations in the Voigt geometry. The use of cw CO2 lasers and a sensitive photoconductivity technique have allowed the observation of many new TPMA transitions. A modified Pidgeon-Brown energy-band model, along with the usual spherical two-photon selection rules, explains most of the observed transitions. The temperature dependence of the energy gap is deduced from an analysis of the TPMA spectra at various temperatures.

  • Received 22 December 1981

DOI:https://doi.org/10.1103/PhysRevB.25.6300

©1982 American Physical Society

Authors & Affiliations

M. W. Goodwin and D. G. Seiler

  • Center for Applied Quantum Electronics, North Texas State University, Denton, Texas 76203

M. H. Weiler

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

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Vol. 25, Iss. 10 — 15 May 1982

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