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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 8 — Apr. 18, 2005
  • pp: 3166–3173

A photonic crystal superlattice based on triangular lattice

Curtis W. Neff and Christopher J. Summers  »View Author Affiliations


Optics Express, Vol. 13, Issue 8, pp. 3166-3173 (2005)
http://dx.doi.org/10.1364/OPEX.13.003166


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Abstract

A two-dimensional superlattice photonic crystal structure is investigated in which the holes in adjacent rows of a triangular lattice alternate between two different radii. The superimposition of a superlattice on a triangular lattice is shown to reduce the photonic bandgap, introduce band splitting, and change the dispersion contours so that dramatic effects are seen in the propagation, refraction, and dispersion properties of the structure. For single mode propagation, the superlattice shows regions of both positive and negative refraction as well as refraction at normal incidence. The physical mechanisms responsible for these effects are directly related to Brillouin Zone folding effects on the triangular lattice that lowers the lattice symmetry and introduces anisotropy in the lattice.

© 2005 Optical Society of America

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Research Papers

History
Original Manuscript: March 15, 2005
Revised Manuscript: April 11, 2005
Published: April 18, 2005

Citation
Curtis Neff and Christopher Summers, "A photonic crystal superlattice based on triangular lattice," Opt. Express 13, 3166-3173 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-8-3166


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