CUED Publications database

Ultrafast switching liquid crystals for electro-optic transmissive and reflective displays and microscopic lasers

Coles, HJ and Morris, SM and Castles, F and Hands, PJW and Wilkinson, TD and Choi, SS (2011) Ultrafast switching liquid crystals for electro-optic transmissive and reflective displays and microscopic lasers. Materials Research Society Symposium Proceedings, 1293. pp. 1-12. ISSN 0272-9172

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Abstract

We report on novel liquid crystals with extremely large flexoelectric coefficients in a range of ultra-fast photonic modes, namely 1) the uniform lying helix, that leads to in-plain switching, birefringence phase devices with 100 μs switching times at low fields, i.e.2-5 V/μm, and analogue or grey scale capability, 2) the uniform standing helix, using planar surface alignment and in-plane fields, with sub ms response times and optical contrasts in excess of 5000:1 with a perfect optically isotropic or black "off state", 3) the wide temperature range blue phase that leads to field controlled reflective color, 4) chiral nematic optical reflectors electric field tunable over a wide wavelength range and 5) high slope efficiency, wide wavelength range tunable narrow linewidth microscopic liquid crystal lasers. © 2011 Materials Research Society.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:47
Last Modified: 01 May 2015 18:50
DOI: 10.1557/opl.2011.23