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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 8 — Aug. 1, 2009
  • pp: 1506–1510

Thickness-dependent photonic bandgap in a one-dimensional single-negative photonic crystal

Da-Wei Yeh and Chien-Jang Wu  »View Author Affiliations


JOSA B, Vol. 26, Issue 8, pp. 1506-1510 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001506


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Abstract

The thickness-dependent photonic bandgap for a one-dimensional photonic crystal consisting of two different single-negative (SNG) materials is theoretically investigated. The two SNG materials include one with a single-negative permittivity (ϵ<0,μ>0) and the other with a single-negative permeability (μ<0,ϵ>0). It is found that the size of the bandgap and the positions of the band edges are strongly dependent on the thickness ratio of the two constituent SNG layers. First, the bandgap decreases with increase in the ratio and eventually shrinks to zero at a critical value of the ratio. Then the bandgap is opened up and enhanced when the thickness ratio is larger than the critical ratio. By using the composite right/left-hand transmission-line model, we qualitatively explained the bandgap's shifting behaviors that are due to the variation of the thickness.

© 2009 Optical Society of America

OCIS Codes
(160.3918) Materials : Metamaterials
(160.5293) Materials : Photonic bandgap materials
(050.5298) Diffraction and gratings : Photonic crystals
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: April 20, 2009
Revised Manuscript: May 25, 2009
Manuscript Accepted: June 16, 2009
Published: July 7, 2009

Citation
Da-Wei Yeh and Chien-Jang Wu, "Thickness-dependent photonic bandgap in a one-dimensional single-negative photonic crystal," J. Opt. Soc. Am. B 26, 1506-1510 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-8-1506

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