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Short-range surface plasmon propagation supported by stimulated amplification using electrical injection.

Authors
Type
Published Article
Journal
Optics Express
1094-4087
Publisher
The Optical Society
Publication Date
Volume
19
Issue
22
Pages
22107–22112
Identifiers
DOI: 10.1364/OE.19.022107
PMID: 22109054
Source
Medline

Abstract

We have investigated the propagation of the long-range mode (LRSP) and the short-range mode (SRSP) surface plasmon polaritons (SPPs) along the waveguide made from Au film and quantum wells (QWs) gain medium. Influenced by the gain spectral nonuniformity, the SRSP showed narrower spectrum than the LRSP in output, denoting that the SRSP propagation was supported by stimulated amplification (SA) in electrically-pumped QWs. An SRSP output power as large as 1.6 times of that of the LRSP was obtained over a travelling distance of 80 μm. The mechanism of SA-supported SRSP propagation can be adopted for electrical modulation of SPPs.

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