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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 7 — Jul. 1, 2014
  • pp: 1730–1734

Analysis of photonic bandgap structure for a polaritonic photonic crystal in negative-index region

Meng-Ru Wu, Hui-Chuan Hung, Chien-Jang Wu, and Shoou-Jinn Chang  »View Author Affiliations


JOSA B, Vol. 31, Issue 7, pp. 1730-1734 (2014)
http://dx.doi.org/10.1364/JOSAB.31.001730


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Abstract

A photonic bandgap (PBG) structure for a polaritonic photonic crystal (PPC) containing lithium tantalate (LiTaO3) in the negative refractive index (NRI) region has been theoretically investigated. This region consists of a narrow frequency range of anomalous dispersion and a wide range of normal dispersion. The result shows that such PPC has a multiple-PBG structure with one gap located in the anomalous dispersion region and others in the normal dispersion region. PBG in the anomalous region is invariant with filling factor and scaling. This gap is further proven to be independent of the angle of incidence for both TE and TM nodes, leading to the existence of an omnidirectional gap. BPGs within the normal dispersion region are, however, strongly affected by the above three factors, especially for gaps near the upper limit of the NRI region.

© 2014 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(230.1480) Optical devices : Bragg reflectors
(310.6860) Thin films : Thin films, optical properties
(230.5298) Optical devices : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: March 26, 2014
Manuscript Accepted: June 3, 2014
Published: June 30, 2014

Citation
Meng-Ru Wu, Hui-Chuan Hung, Chien-Jang Wu, and Shoou-Jinn Chang, "Analysis of photonic bandgap structure for a polaritonic photonic crystal in negative-index region," J. Opt. Soc. Am. B 31, 1730-1734 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-7-1730

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