The Library
Dynamics in dye-doped LC systems in presence of trans-Cis isomerism
Tools
Trushkevych, Oksana, Collings, N., Crossland, W. A., Wilkinson, T. D. and Milne, W. I. (2007) Dynamics in dye-doped LC systems in presence of trans-Cis isomerism. Molecular Crystals and Liquid Crystals, 478 (1). 221/[977]-232/[988]. doi:10.1080/15421400701681224 ISSN 1542-1406.
|
PDF
WRAP-dynamics-dye-doped-systems-isomerism-Trushkevych-2007.pdf - Accepted Version - Requires a PDF viewer. Download (863Kb) | Preview |
Official URL: http://dx.doi.org/10.1080/15421400701681224
Abstract
The excitation as well as relaxation dynamics of dye-doped nematic liquid crystal cells has been explored both experimentally and theoretically. Overshoots in the build up of the probe signal diffracted from gratings written onto dye-doped liquid crystal systems have often been observed. The overshoot behaviour makes the accurate measurement of nonlinear optical (NLO) response magnitude difficult and ambiguous. Moreover, it complicates the understanding of the dynamics and the physics of the NLO processes.
On the basis of the system with trans-cis isomerisation as a mechanism of the NLO effect the quantitative model has been built to describe the experimental results which we observe.
The two unknown material parameters: diffusion coefficient and cis species lifetime are calculated from the relaxation data. A quantitative model of the signal build-up uses these parameters. The calculated dynamic behaviour based on this model correlates very well with the experimental data.
The model is used to predict the performance of the system with various dopant diffusion properties.
Item Type: | Journal Article | ||||||
---|---|---|---|---|---|---|---|
Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
Library of Congress Subject Headings (LCSH): | Liquid crystals -- Materials, Photonics | ||||||
Journal or Publication Title: | Molecular Crystals and Liquid Crystals | ||||||
Publisher: | Taylor & Francis | ||||||
ISSN: | 1542-1406 | ||||||
Official Date: | 9 January 2007 | ||||||
Dates: |
|
||||||
Volume: | 478 | ||||||
Number: | 1 | ||||||
Page Range: | 221/[977]-232/[988] | ||||||
DOI: | 10.1080/15421400701681224 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 14 September 2017 | ||||||
Date of first compliant Open Access: | 14 September 2017 | ||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), University of Cambridge. Centre for Advanced Photonics and Electronics (CAPE) | ||||||
Grant number: | Platform Grant GR/S12074/01 (EPSRC) |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year