Photoassisted poling of azo dye doped polymeric films at room temperature |
| |
Authors: | Z. Sekkat M. Dumont |
| |
Affiliation: | (1) Instit d'Optique Théorique et Appliquée, Bât 503, B.P.147, F-91403 Orsay Cédex, France |
| |
Abstract: | The reversible cis-trans photoisomerization of disperse red 1 (DR1) in PMMA thin films has been demonstrated to be strongly polarization sensitive [1]. In this communication two mechanisms are identified: the angular hole burning and the angular redistribution of molecules. It is shown that, in the presence of a DC electric field, the redistribution is not centrosymmetric and produces a poling of the film. The evolution of the second-order nonlinear susceptibility, (2), is monitored by measuring the electro-optic effect by attenuated total reflection and by second-harmonic generation. |
| |
Keywords: | 82.40-m 78.65Hc 42.79Gn |
本文献已被 SpringerLink 等数据库收录! |
|