Line defects and temperature effects in liquid crystal tunable planar Bragg gratings


Snow, B.D., Adikan, F.R.M., Gates, J.C., Gawith, C.B.E., Dyadyusha, A., Kaczmarek, M. and Smith, P.G.R. (2007) Line defects and temperature effects in liquid crystal tunable planar Bragg gratings. Optics Express, 15, (25), 17129-17135. (doi:10.1364/OE.15.017129).

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Original Publication URL: http://dx.doi.org/10.1364/OE.15.017129

Description/Abstract

Liquid crystal tunable planar Bragg Gratings produced by Direct UV Writing are capable of wavelength tuning of over 100GHz. However, such devices exhibit non-linear tuning curves with threshold points and hysteresis. We show that these effects are due to the formation of disclination structures in the liquid crystal and discuss the role of electrode defects and sample temperature on wavelength tuning.

Item Type: Article
ISSNs: 1094-4087 (print)
Related URLs:
Subjects: Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 57599
Date Deposited: 15 Aug 2008
Last Modified: 27 Mar 2014 18:40
URI: http://eprints.soton.ac.uk/id/eprint/57599

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