Diffraction efficiency enhancement of transient holographic gratings in nematic liquid crystals doped with Disperse Red 1

DOI

10.2991/amcce-17.2017.109How to use a DOI?

Keywords

Azo dye; Liquid crystals; Holographic grating

Abstract

The diffraction properties of transient holographic gratings recorded by two 532 nm laser beams were investigated in nematic liquid crystals doped with Disperse Red 1. A nearly 30-fold enhancement of the first-order diffraction efficiency as a function of heating time was obtained when the sample temperature was close to the clearing point in the nematic phase. A peak shift of diffraction efficiency with the increase of recording light intensity was observed, which was attributed to laser induced photochemical nematic-isotropic phase transition.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hongjing Li
AU  - ChangsHun Wang
PY  - 2017/03
DA  - 2017/03
TI  - Diffraction efficiency enhancement of transient holographic gratings in nematic liquid crystals doped with Disperse Red 1
BT  - Proceedings of the 2017 2nd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2017)
PB  - Atlantis Press
SP  - 630
EP  - 633
SN  - 2352-5401
UR  - https://doi.org/10.2991/amcce-17.2017.109
DO  - 10.2991/amcce-17.2017.109
ID  - Li2017/03
ER  -