Letter abstract


Nature Photonics 2, 351 - 354 (2008)
Published online: 25 May 2008 | doi:10.1038/nphoton.2008.82

Subject Categories: Plasmonics | Novel materials and engineered structures | Nanophotonics

Lasing spaser

N. I. Zheludev1, S. L. Prosvirnin2, N. Papasimakis1 & V. A. Fedotov1


In 2003 Bergman and Stockman introduced the spaser, a quantum amplifier of surface plasmons by stimulated emission of radiation1. They argued that by exploiting a metal/dielectric composite medium it should be possible to construct a nanodevice, where a strong coherent field is built up in a spatial region much smaller than the wavelength1, 2. V-shaped metallic structures, combined with semiconductor quantum dots, were discussed as a possible realization of the spaser1. 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.'

Top
  1. Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK
  2. Institute of Radio Astronomy, National Academy of Sciences, Kharkov 61002, Ukraine

Correspondence to: N. I. Zheludev1 e-mail: niz@orc.soton.ac.uk



MORE ARTICLES LIKE THIS

These links to content published by NPG are automatically generated.

NEWS AND VIEWS

Semiconductors A new class of metamaterials

Nature Materials News and Views (01 Dec 2007)

Photonics Metamaterials add an extra dimension

Nature Materials News and Views (01 Jan 2008)


Extra navigation

Subscribe to Nature Photonics

Subscribe

natureevents

ADVERTISEMENT