Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Thermal-pulse investigation of poled nonlinear optical polymers
| Lewiner, J. ; IEEE Dielectrics and Electrical Insulation Society:
8th International Symposium on Electrets 1994. Proceedings : 7 - 9 September 1994, ESPCI Paris, France
Piscataway, NJ: IEEE, 1994
ISBN: 0-7803-1939-7
ISBN: 0-7803-1940-0
ISBN: 0-7803-1941-9 |
| International Symposium on Electrets (ISE) <8, 1994, Paris> |
|
| Englisch |
| Konferenzbeitrag |
| Fraunhofer HHI () |
| dielectric polarisation; electrets; electric fields; nonlinear optics; optical polymers; polymer films; poled nonlinear optical polymer films; electric-field profiles; polarization profiles; thermal-pulse-technique; substrate effect; adhered nlo chromophores |
Abstract
Poled nonlinear optical (NLO) polymer films are usually supported by substrates. This leaves two possibilities for investigating polarization and electric-field profiles in such samples with the thermal-pulse- technique: Thermal-pulse generation in the front electrode on the film or in the rear electrode between film and substrate. The influence of the substrate on the amplitude and on the long-time behavior of the thermal-pulse signal is theoretically treated. Experiments were performed on a poled double-layer sample consisting of a polymer film with NLO chromophores adhered to a similar polymer without chromophores, the latter film adhered to the substrate. The results demonstrate the validity of the proposed experimental approach.