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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9774–9779

Unusual electro-optical behavior in a wide-temperature BPIII cell

Hui-Yu Chen, Sheng-Feng Lu, and Yi-Chun Hsieh  »View Author Affiliations


Optics Express, Vol. 21, Issue 8, pp. 9774-9779 (2013)
http://dx.doi.org/10.1364/OE.21.009774


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Abstract

A low driving voltage and fast response blue phase III (BPIII) liquid-crystal device with very low dielectric anisotropy is demonstrated. To stabilize BPIII in a wide temperature range (> 15°C), a chiral molecule with good solubility was chosen. By studying field-dependent polarization state of the transmitting light, it was found that the field-induced birefringence becomes saturated in the high field. However, the transmitting intensity exhibits a tendency to increase as the electric field increases. This indicates that the electro-optical behavior in BPIII device may be from the flexoelectric effect, which induces tilted optical axis and then induces birefringence. Because the phase transition from BPIII to chiral nematic phase does not happen, the device shows no hysteresis effect and no residual birefringence, exhibits fast response, and can be a candidate for fast photonic application.

© 2013 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.2090) Optical devices : Electro-optical devices
(260.1440) Physical optics : Birefringence

ToC Category:
Optical Devices

History
Original Manuscript: February 19, 2013
Revised Manuscript: April 8, 2013
Manuscript Accepted: April 9, 2013
Published: April 12, 2013

Citation
Hui-Yu Chen, Sheng-Feng Lu, and Yi-Chun Hsieh, "Unusual electro-optical behavior in a wide-temperature BPIII cell," Opt. Express 21, 9774-9779 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-8-9774


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