Microscopic model of optically induced anisotropy of third-order nonlinearity in azo-dye polymer systems

Autor: V. M. Churikov
Rok vydání: 2000
Předmět:
Zdroj: Journal of Experimental and Theoretical Physics Letters. 72:415-418
ISSN: 1090-6487
0021-3640
DOI: 10.1134/1.1335119
Popis: A large photoinduced reversible change of third-harmonic generation in azo-dye polymer thin films was recently observed. In this work, the microscopic interpretation of this phenomenon is given. The model presented is based on an angular hole burning and molecular reorientation due to trans-cis photoisomerization of azo-dye molecules.
Databáze: OpenAIRE