Anderson localization of surface plasmons and Kerr nonlinearity in semicontinuous metal films

Citation
Ak. Sarychev et al., Anderson localization of surface plasmons and Kerr nonlinearity in semicontinuous metal films, PHYSICA B, 279(1-3), 2000, pp. 87-89
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
279
Issue
1-3
Year of publication
2000
Pages
87 - 89
Database
ISI
SICI code
0921-4526(200004)279:1-3<87:ALOSPA>2.0.ZU;2-1
Abstract
We predict that in the optical and infrared spectral ranges the local field s in semicontinuous metal films are very inhomogeneous and consist of sharp peaks representing localized surface plasmons. The localization maps the A nderson localization problem described by the random Hamiltonian with both on- and off-diagonal disorder. The local fields exceed the applied field by several orders of magnitudes resulting in giant enhancements of various op tical phenomena including Kerr nonlinearity. The Kerr effect has characteri stic dip at the percolation threshold due to the strong dependence of the K err effect on the localization length of the surface plasmons. (C) 2000 Pub lished by Elsevier Science B.V. All rights reserved.