Enhancement of chi(3) in nanoparticle composite media exhibiting electrostriction and quantum confinement

Authors
Schwarze, CR Pommet, DA Flynn, G Fiddy, MA
Citation
Cr. Schwarze et al., Enhancement of chi(3) in nanoparticle composite media exhibiting electrostriction and quantum confinement, WAVE RAND M, 10(1), 2000, pp. 43-52
Citations number
12
Categorie Soggetti
Physics
Journal title
WAVES IN RANDOM MEDIA
ISSN journal
09597174 → ACNP
Volume
10
Issue
1
Year of publication
2000
Pages
43 - 52
Database
ISI
SICI code
0959-7174(200001)10:1<43:EOCINC>2.0.ZU;2-N
Abstract
A new model is described that combines the interaction between two physical mechanisms responsible for bulk third-order optical nonlinearity. They are : (1) saturable absorption, due to quantum confinement in nanoparticles, an d (2) electrostriction, causing particles to migrate in the fluid host. We show that enhanced nonlinearities are predicted resulting from local field coupling and that oscillations can occur under certain conditions.