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Far-infrared modulated photoluminescence spectroscopy of InSb/GaSb quantum dot structures

Child, R. A., Nicholas, R. J., Mason, N. J., Shields, P. A., Wells, J-P. R., Bradley, I. V., Phillips, J. and Murdin, B. N. (2003) Far-infrared modulated photoluminescence spectroscopy of InSb/GaSb quantum dot structures Physical Review B, 68 (165307). ISSN 0163-1829

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Abstract

The first far-infrared modulated photoluminescence (FIRM-PL) measurements in InSb/GaSb quantum dots have been performed. Far-infrared absorption is found to both enhance and suppress the quantum dot PL depending on the FIR intensity. This behavior is attributed to the nonthermal distribution of carriers amongst the quantum dots. The spectral dependence of the FIRM-PL signal measures the energy spectrum of the quantum dots, showing a peak at 14.5 meV corresponding to transitions between the first two energy levels of the dot distribution.

Item Type: Article
Additional Information: Published in Physical Review B, 68, 165307. © 2003The American Physical Society.
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:44
Last Modified: 23 Sep 2013 18:34
URI: http://epubs.surrey.ac.uk/id/eprint/1736

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