학술논문
Anomalous second-order nonlinear optical response of in-plane poled glassy polymers. Spectroscopic and theoretical support for the importance of charged chromophore aggregates
Document Type
Academic Journal
Source
Journal of the American Chemical Society. April 2, 1997, Vol. 119 Issue 13, p2995, 8 p. table
Subject
Language
ISSN
0002-7863
Abstract
Electron paramagnetic resonance spectroscopy was done to investigate the mechanism involved in poling-induced polymeric nonlinear optical (NLO) response. The results were found to be in qualitative agreement with the very large NLO response magnitudes and distinct spectral features predicted by sum-over-states perturbative calculations done for positively charged centrosymmetric chromophore dimers. The findings also provide computational evidences that the observed anomalous NLO response can be attributed to charged chromophore aggregates.