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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 4 — Feb. 1, 2013
  • pp: 742–749

Selective field localization in random structured media

Jason S. D. Roberts, Hossein Alisafaee, and Michael A. Fiddy  »View Author Affiliations


Applied Optics, Vol. 52, Issue 4, pp. 742-749 (2013)
http://dx.doi.org/10.1364/AO.52.000742


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Abstract

We have introduced a method to find optimized structured media exhibiting large internal electric field amplitudes. The method is based on a genetic algorithm in which a spatial fitness function according to the computed field distribution in the interior of media is defined and maximized. The main feature of our method is that it enables localization of light at a desired layer (or more) within the structure. The enhancements are demonstrated to be up to about 70-fold in |E|2 by use of only seven layers. The results are interesting for nonlinear and sensor applications, which due to compact size and few number of structure layers, are also desirable for fabrication purposes.

© 2013 Optical Society of America

OCIS Codes
(220.4830) Optical design and fabrication : Systems design
(230.1480) Optical devices : Bragg reflectors
(230.4170) Optical devices : Multilayers

ToC Category:
Optical Devices

History
Original Manuscript: October 2, 2012
Revised Manuscript: December 19, 2012
Manuscript Accepted: December 23, 2012
Published: January 30, 2013

Citation
Jason S. D. Roberts, Hossein Alisafaee, and Michael A. Fiddy, "Selective field localization in random structured media," Appl. Opt. 52, 742-749 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-4-742


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