Optical spectroscopy of a GaAs/AlGaAs quantum wire structure using near-field scanning optical microscopy

DOI to cite this document:: 10.5283/epub.10022

Grober, Robert D. ; Harris, Timothy D. ; Trautman, Jay K. ; Betzig, Eric ; Wegscheider, Werner ; Pfeiffer, Loren ; West, Ken

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Date of publication of this fulltext: 26 Oct 2009 14:38

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Abstract

We report the first spectroscopic study using a low temperature near-field scanning optical microscope. We have studied an array of GaAs/AlGaAs cleaved edge overgrowth quantum wires. The three luminescence peaks originate from different structures in the sample: The (001)-oriented multiple quantum wells, the (110)-oriented single quantum well, and the quantum wires. The linewidth of the quantum ...