Investigations on the grating dynamics in a fast photorefractive guest-host polymer

被引：30

作者：

Hofmann, U

Schreiber, A

Haarer, D

Zilker, SJ

Bacher, A

Bradley, DDC

Redecker, M

Inbasekaran, M

Wu, WW

Woo, EP

机构：

[1] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany

[2] Univ Bayreuth, Bayreuther Inst Makromol Forsch, D-95440 Bayreuth, Germany

[3] Univ Sheffield, Dept Phys, Sheffield S3 7RH, S Yorkshire, England

[4] Univ Sheffield, Ctr Mol Mat, Sheffield S3 7RH, S Yorkshire, England

[5] Dow Chem Co, Cent & New Business R&D, Midland, MI 48674 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 311卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00828-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Holographic studies of a new guest-host system based on a highly photoconducting fluorene-triarylamine copolymer are presented. The photorefractive grating dynamics are investigated in detail. We propose a new approach to characterize the temporal behavior of these processes. By performing an inverse Laplace transform analysis using the algorithm CONTIN, we were able to identify several processes and to evaluate the according time constants. We compare this method with a conventional procedure to prove its applicability. Both approaches yield almost identical results for the fast time constant which is down to 1 ms for this material at a writing beam intensity of I-wb = 1.44 W/cm(2). (C) 1999 Elsevier Science B.V, All rights reserved.

引用

页码：41 / 46

页数：6

共 24 条

[1] TRANSIENT PHOTOCONDUCTIVITY IN A DISCOTIC LIQUID-CRYSTAL [J].