Theory of zone-folded optical transitions in semiconductor superlattices

A one-dimensional two-band tight-binding model is used to develop simple criteria governing the optical transition strength of a direct gap formed by zone folding in a superlattice of alternating layers of two indirect band-gap semiconductors. The model study explains the weak optical transitions ca...

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Veröffentlicht in:	Applied physics letters 1993-12, Vol.63 (24), p.3253-3255
Hauptverfasser:	LAZZOUNI, M. E, SHAM, L. J
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Optical properties of specific thin films, surfaces, and low-dimensional structures Physics
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