Physical review. B, Condensed matter

Optical saturation of intersubband absorption in semiconductor superlattices

Shao-hua Pan, Simin Feng

Published Oct 15, 1991• 19 citations

Abstract

The third-order nonlinear intersubband absorption in superlattices is studied theoretically by means of a general formalism of the Kronig-Penney model given recently. It is shown that there is a general relation between the tunnel bandwidth and the minimum optical saturation intensity. The physical origin of this relation is analyzed.

DOI: 10.1103/physrevb.44.8165

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