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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4553–4558

Wide band gap materials as a new tuning strategy for dye doped cholesteric liquid crystals laser

G. Petriashvili, M. A. Matranga, M. P. De Santo, G. Chilaya, and R. Barberi  »View Author Affiliations


Optics Express, Vol. 17, Issue 6, pp. 4553-4558 (2009)
http://dx.doi.org/10.1364/OE.17.004553


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Abstract

A new tuning strategy for mirror-less liquid crystals laser is presented. A three layer cell is prepared with two cholesteric layers sandwiching a layer containing an isotropic mixture of a photoluminescent dye. One of the chiral layers contains a wide band gap material while the second layer consists of a series of small band gap materials. Through the combination of these two layers, a set of mirrors that can selectively reflect different wavelengths is obtained. A different laser wavelength is emitted from different regions of the cell under the pumping beam irradiation.

© 2009 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: October 31, 2008
Revised Manuscript: January 22, 2009
Manuscript Accepted: January 24, 2009
Published: March 6, 2009

Citation
G. Petriashvili, M. A. Matranga, M. P. De Santo, G. Chilaya, and R. Barberi, "Wide band gap materials as a new tuning strategy for dye doped cholesteric liquid crystals laser," Opt. Express 17, 4553-4558 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-6-4553


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