Frequency dependence of two-photon absorption in InSb and Hg1-xCdxTe

A. M. Johnston, C. R. Pidgeon, J. Dempsey

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The frequency dependence of two-photon absorption is measured over a wide range in InSb and Hg0.78Cd0.22Te, showing good agreement with a nonparabolic-band perturbation calculation and wide divergence from "tunneling" theory. Associated photoconductivity measurements, required in the analysis, confirm that Auger scattering is the dominant process at room temperature in n-InSb, but at low temperatures have yielded a direct value of the lifetime of (77 K)=143 ns for radiative recombination. © 1980 The American Physical Society.

Original languageEnglish
Pages (from-to)825-831
Number of pages7
JournalPhysical Review B: Condensed Matter
Issue number2
Publication statusPublished - 1980


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