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Lasing spaser

By N.I. Zheludev, S.L. Prosvirnin, N. Papasimakis and V.A. Fedotov

Abstract

In 2003 Bergman and Stockman introduced the spaser, a quantum amplifier of surface plasmons by stimulated emission of radiation. Here we introduce a further development of the spaser concept. We show that by combining the metamaterial and spaser ideas one can create a narrow-diversion coherent source of electromagnetic radiation that is fuelled by plasmonic oscillations. We argue that a two-dimensional array of a certain class of plasmonic resonators supporting coherent current excitations with high quality factor can act as a planar source of spatially and temporally coherent radiation, which we term a 'lasing spaser.

Topics: QC, TK
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:65791
Provided by: e-Prints Soton
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