Surface plasmon-enhanced photoluminescence from a single quantum well

We have dramatically enhanced the photoluminescence intensity emitted from a single quantum well (typically by factors of 3–6) by covering the sample surface with a thin semitransparent metallic film. Using a photolithographically prepared gold grating, we show that this enhancement is due to the ex...

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Bibliographic Details
Published in:Applied physics letters 1999-09, Vol.75 (11), p.1577-1579
Main Authors: Hecker, N. E., Höpfel, R. A., Sawaki, N., Maier, T., Strasser, G.
Format: Article
Language:English
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Summary:We have dramatically enhanced the photoluminescence intensity emitted from a single quantum well (typically by factors of 3–6) by covering the sample surface with a thin semitransparent metallic film. Using a photolithographically prepared gold grating, we show that this enhancement is due to the excitation of surface plasmons on the metal. By selectively turning off the surface plasmon excitation via sample or light polarization rotation, the enhancement can be suppressed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.124759