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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 20 — Oct. 15, 2006
  • pp: 3019–3021

Unique optical properties of anisotropic helical structures in a Fabry-Perot cavity

I. Abdulhalim  »View Author Affiliations


Optics Letters, Vol. 31, Issue 20, pp. 3019-3021 (2006)
http://dx.doi.org/10.1364/OL.31.003019


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Abstract

Anisotropic helical structures in Fabry-Perot (FP) cavities are shown to exhibit unique properties. The FP peaks are unpolarized, consisting of doublets corresponding to Bloch-Lyaponov eigenwaves with increased splitting as the local anisotropy increases and as they become closer to the photonic bandgap. The Bragg-type selective reflection peak existing in a free-cavity sample is inhibited when the helical medium is inside a cavity, and it has no effect on the cavity modes. Hence the unique characteristics are obtained even with a single period of the helix, and consequently thin films of helical liquid crystals can be used to build fast tunable polarization insensitive FP filters.

© 2006 Optical Society of America

OCIS Codes
(000.2690) General : General physics
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.2440) Instrumentation, measurement, and metrology : Filters
(160.1190) Materials : Anisotropic optical materials
(160.3710) Materials : Liquid crystals

ToC Category:
Physical Optics

History
Original Manuscript: June 19, 2006
Revised Manuscript: July 20, 2006
Manuscript Accepted: July 20, 2006
Published: September 25, 2006

Citation
I. Abdulhalim, "Unique optical properties of anisotropic helical structures in a Fabry-Perot cavity," Opt. Lett. 31, 3019-3021 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-20-3019

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