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Investigation of Third-Order Nonlinearity of Polybenzonitriles by Heterodyned Femtosecond Optical Kerr Gate.
- Source :
-
Journal of Nonlinear Optical Physics & Materials . Sep1999, Vol. 8 Issue 3, p419. 11p. - Publication Year :
- 1999
-
Abstract
- The femtosecond optical heterodyne detected optical Kerr effect is described in detail. The real and the imaginary parts of complex third-order optical nonlinearity can be effectively separated and their values and signs can be determined. Using this method, we thoroughly investigated the substitution effect by adding different side-groups on the ā(āC=Nā)ā conjugated system, a new class of nonlinear optical material. We discussed the improvement in their third-order susceptibilities. And we found the value of second-order hyperpolarizability depends on the polymerization degree, but the relationship is different for different substituted polymers. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HETERODYNING (Electronics)
*KERR electro-optical effect
Subjects
Details
- Language :
- English
- ISSN :
- 02188635
- Volume :
- 8
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Nonlinear Optical Physics & Materials
- Publication Type :
- Academic Journal
- Accession number :
- 10236978
- Full Text :
- https://doi.org/10.1142/S0218863599000291