ALL-OPTICAL POLING IN POLYMERS - DYNAMICAL ASPECTS AND PERSPECTIVES

Citation
Jm. Nunzi et al., ALL-OPTICAL POLING IN POLYMERS - DYNAMICAL ASPECTS AND PERSPECTIVES, Pure and applied optics, 7(2), 1998, pp. 141-150
Citations number
20
Categorie Soggetti
Optics
Journal title
ISSN journal
09639659
Volume
7
Issue
2
Year of publication
1998
Pages
141 - 150
Database
ISI
SICI code
0963-9659(1998)7:2<141:APIP-D>2.0.ZU;2-P
Abstract
All-optical poling is based on the excitation of nonlinear molecules u sing dual-frequency beams. The process is optimized at a molecular lev el when the molecules are resonantly excited. From the point of view o f frequency conversion applications, this raises the question of devic e transparency to the frequency-converted output. In order to treat th is efficiency transparency tradeoff, we recently developed a simple mo del accounting for all the observable parameters. The model permits a good prediction of the poling dynamics. Its self-consistency permits t he description of all the known all-optical poling schemes. In particu lar, analysis of the parameters of the model permits the identificatio n of new strategies towards the realization of stable and transparent phase-matched materials for frequency conversion. Some preliminary exp erimental results are presented in this respect.