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Electrooptical Chromophores for Nonlinear Optical and Photorefractive Applications

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Abstract

A new series of dyes for nonlinear optical (NLO) and photorefractive(PR) applications investigated by optical and electrooptical absorption spectroscopy. Optimized PR and NLO chromophores are obtained based on the exceptionally strong heterocyclic thiazolidenemalononitrile acceptor unit, combined with the proper choice of electron donor unit and conjugation length (see Figure).

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