Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1496765 | Optical Materials | 2006 | 5 Pages |
Abstract
Polyurethane polymers containing azo sulfonamide chromophores were obtained by coupling reaction of the precursor polyurethane with corresponding diazonium salts. The chromophores, showing high hyperpolarizability value on molecular scale, were found to undergo orientation by all-optical poling method yielding macroscopic nonlinear optical response. The rate of generation and decay of the second-order nonlinear susceptibility was evaluated as a function of time. It was established that the polymers containing sulfonamide type chromophores showed higher stability of the nonlinear optical signal as compared with those modified with a nitro-acceptor groups of the Disperse Red type.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
E. Ortyl, S.W. Chan, J.-M. Nunzi, S. Kucharski,