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Titolo:
FRACTALS - LOCALIZATION OF DIPOLE EXCITATIONS AND GIANT OPTICAL POLARIZABILITIES
Autore:
SHALAEV VM; BOTET R; TSAI DP; KOVACS J; MOSKOVITS M;
Indirizzi:
NEW MEXICO STATE UNIV,DEPT PHYS LAS CRUCES NM 88003 UNIV PARIS 11,CTR ORSAY,PHYS SOLIDES LAB F-91405 ORSAY FRANCE UNIV TORONTO,ONTARIO LASER & LIGHTWAVE RES CTR TORONTO M5S 1A1 ONTARIO CANADA UNIV TORONTO,DEPT CHEM TORONTO M5S 1A1 ONTARIO CANADA
Titolo Testata:
Physica. A
fascicolo: 1-3, volume: 207, anno: 1994,
pagine: 197 - 207
SICI:
0378-4371(1994)207:1-3<197:F-LODE>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAMAN-SCATTERING; CLUSTERS; LIGHT; PERCOLATION; VIBRATIONS; COMPOSITES; FRACTONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
V.M. Shalaev et al., "FRACTALS - LOCALIZATION OF DIPOLE EXCITATIONS AND GIANT OPTICAL POLARIZABILITIES", Physica. A, 207(1-3), 1994, pp. 197-207

Abstract

Highly localized optical modes laser-excited on silver colloid fractal clusters were observed using photon scanning tunnelling microscopy (PSTM). The spatial distribution of the modes excited shows the frequency and polarization selectivity suggested by numerical simulations. The localization of the optical excitations on fractals results in very high local fields leading to the huge enhancement of resonant Rayleigh, Raman and, especially, nonlinear light scattering. The experimental results verify the main concepts of the developed resonant optical theory of fractals.

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Documento generato il 22/09/20 alle ore 16:21:36