Melting-Induced Enhancement of the Second-Harmonic Generation from Metal Nanoparticles

A. M. Malvezzi, Marco Allione, M. Patrini, A. Stella, P. Cheyssac, R. Kofman

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We report on the generation of second-harmonic signals by irradiating monolayers of high purity Ga nanoparticles, embedded in a [Formula presented] matrix, with femtosecond laser pulses at 800 nm. A remarkable melting-induced enhancement of the second-harmonic generation is observed in correspondence of the phase transition. In addition, the hysteresis cycle of nonlinear transmittance is shown to be amplified a factor of 80–100 with respect to the linear response and interpreted in the framework of a nonlinear effective-medium model.

Original languageEnglish (US)
JournalPhysical Review Letters
Volume89
Issue number8
DOIs
StatePublished - Jan 1 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Melting-Induced Enhancement of the Second-Harmonic Generation from Metal Nanoparticles'. Together they form a unique fingerprint.

Cite this