We prepared the nonlinear optical heterocyclic chromophores that show fairly high microscopic nonlinearity through intramolecular charge transfer. Phenothiazine and carbazole units played an important role to contribute fairly high electron donability and connect the resonance pathway via conjugative effect in the cyclized ring beside the aromatic ring. Electro-optic (EO) properties of the guest-host systems in amorphous polycarbonate containing the synthesized gradient bridge chromophores with the same concentration were investigated under identical poling conditions. Real time pole and probe method gave us much more information how the electro-optic properties can be brought about and can be optimized.
Bibliographical noteFunding Information:
Authors acknowledged the financial support from International Cooperative Research Program in Korea Science and Engineering Foundation (Contract#: F01-2004-000-10202-0). D.H. Choi particularly acknowledges the partial support from US National Science Foundation (DMR No. 0092380).
Copyright 2019 Elsevier B.V., All rights reserved.
- Electro-optic effect
- Gradient bridge
- Nonlinear optical chromophore
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Computer Science
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Electrical and Electronic Engineering