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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 3 — Mar. 1, 2006
  • pp: 506–513

Zero- n ¯ bandgap in photonic crystal superlattices

Nicolae C. Panoiu, Richard M. Osgood, Jr., Shuang Zhang, and Steven R.J. Brueck  »View Author Affiliations


JOSA B, Vol. 23, Issue 3, pp. 506-513 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000506


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Abstract

We demonstrate that photonic superlattices consisting of a periodic distribution of layers of materials with positive index of refraction and photonic crystal slabs that, at the operating frequency, have negative effective index of refraction present a photonic gap that corresponds to the frequency at which the spatial average of the refractive index distribution, taken over the unit supercell of the superlattice, vanishes. We also show that, unlike the Bragg gaps, the frequency of this zero- n ¯ gap is invariant to the geometrical scaling of the superlattice or the direction of wave propagation in the superlattice.

© 2006 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(160.3130) Materials : Integrated optics materials
(230.4170) Optical devices : Multilayers
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Metamaterials

History
Original Manuscript: July 8, 2005
Revised Manuscript: October 5, 2005
Manuscript Accepted: October 7, 2005

Citation
Nicolae C. Panoiu, Richard M. Osgood, Jr., Shuang Zhang, and Steven R. J. Brueck, "Zero-n¯ bandgap in photonic crystal superlattices," J. Opt. Soc. Am. B 23, 506-513 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-3-506

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