Photoinduced microstructures and gratings in azo-polymer films

Author

Nunzi, Jean-Michel

Author_Institution

Equipe de Recherche Cellules Solaires Photovoltaiques Plastiques Laboratoire, Universite d´´Angers, Angers, France

Volume

2

fYear

2004

fDate

7-11 Nov. 2004

Firstpage

723

Abstract

Two different optical structuring of organic materials using optical beams is described. Both methods rely on repeated trans-cis isomerization effects induced by resonant light absorption in polymers films containing azo-dyes. The first method is the formation of an optically induced second harmonic grating with phase-matched pattern related to the net reorientation of azo-dyes induced by light. The second method is the self structuring of hexagonal patterns in polymer films related to the net translation of azo-dyes induced by light.

Keywords

diffraction gratings; dyes; isomerisation; molecular reorientation; optical films; optical harmonic generation; optical phase matching; optical polymers; polymer films; azo-dyes reorientation; azo-dyes translation; azo-polymer films; hexagonal patterns; optically induced second harmonic grating; organic materials; phase-matched pattern; photoinduced microstructures; resonant light absorption; self structuring; trans-cis isomerization; Absorption; Frequency conversion; Gratings; Microstructure; Optical beams; Optical films; Optical polymers; Organic materials; Polymer films; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE

Print_ISBN

0-7803-8557-8

Type

conf

DOI

10.1109/LEOS.2004.1363443

Filename

1363443