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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 30 — Oct. 20, 2004
  • pp: 5614–5617

Optical Memory Effect in a Deformed Helix Ferroelectric Liquid Crystal

Anil K. Thakur, Sarabjot Kaur, Sukhwant S. Bawa, and Ashok M. Biradar  »View Author Affiliations


Applied Optics, Vol. 43, Issue 30, pp. 5614-5617 (2004)
http://dx.doi.org/10.1364/AO.43.005614


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Abstract

Optical memory in a deformed-helix ferroelectric liquid crystal is proposed by deforming the helix under the application of a square-voltage pulse of known magnitude and frequency. This effect is based on the electromechanical effect of helix deformation due to the electric field. When the interaction between the electric field and the dipole is sufficiently strong, all of the dipoles align along the electric field. In such a situation the interlayer dipole-dipole interaction is strong enough to balance the elastic deformation energy. When the electric field is switched off, the molecules remain in a static, balanced state owing to the dipole-dipole interaction and hence the memory effect.

© 2004 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(160.3710) Materials : Liquid crystals
(210.4680) Optical data storage : Optical memories

Citation
Anil K. Thakur, Sarabjot Kaur, Sukhwant S. Bawa, and Ashok M. Biradar, "Optical Memory Effect in a Deformed Helix Ferroelectric Liquid Crystal," Appl. Opt. 43, 5614-5617 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-30-5614

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