Laser Written Permanent Gratings in a New Liquid Crystalline Organometallic Polymer
作者:
G. Cipparrone,
A. Mazzulla,
I. Aiello,
M. Ghedini,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 320,
issue 1
页码: 165-171
ISSN:1058-725X
年代: 1998
DOI:10.1080/10587259808024393
出版商: Taylor & Francis Group
关键词: optical storage;photorefractivity;metallomesogenic polymers
数据来源: Taylor
摘要:
Interest in materials for optical storage effect has been intense in the last years. In this paper we report the observation of permanent gratings in a new liquid crystalline side-chain polymer containing a mononuclear cyclopalladated azobenzene complex. Two-beam coupling experiments indicate photorefractive properties. A gain of 900 cm−1, without applied electric field, was determined by two beam coupling measurements. A significant feature of this high gain material is that this effect occurs in an easily processable pure compound.
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