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Novel Polymer Composites with High Optical Gain Based on Pseudo‐Photorefraction
Author(s) -
Lee J.W.,
Mun J.,
Yoon C.S.,
Lee K.S.,
Park J.K.
Publication year - 2002
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(20020116)14:2<144::aid-adma144>3.0.co;2-f
Subject(s) - materials science , photorefractive effect , polymer , composite material , coupling (piping) , optoelectronics , interference (communication) , optical phenomena , space charge , optics , telecommunications , channel (broadcasting) , physics , computer science , quantum mechanics , electron
Asymmetric two‐beam coupling without a space‐charge field or electro‐optical and orientational effects was detected in hemicyanine‐dye‐containing polymer composites. This phenomenon, termed “pseudo‐photorefraction” by the authors, appears to arise from movement of the interference pattern and mass transport within the polymer matrix. Large optical gain effects and amplification up to 30 % qualify the materials for simple yet highly effective photorefractive devices.