High net gain at 514 nm in a photorefractive polymer doped with a chalcone derivative
作者:
L. Mager,
C. Melzer,
M. Barzoukas,
A. Fort,
S. Me´ry,
J.-F. Nicoud,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 16
页码: 2248-2250
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.120040
出版商: AIP
数据来源: AIP
摘要:
We report on the photorefractive properties of a lowTgcomposite consisting of functionalized polysiloxane doped with a chalcone derivative. The high transparency of this doping molecule enabled the observation of high net gain at 514 nm. Orientational and Pockels contributions to the total refractive index variations were measured by frequency-dependent ellipsometry experiments. Finally, the field dependence of the gain coefficient is described using Kukhtarev’s model for the space charge field with an effective trap density as a single fitting parameter. ©1997 American Institute of Physics.
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