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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 12 — Jun. 15, 2011
  • pp: 2263–2265

Enhanced bandgap in annular photonic-crystal silicon-on-insulator asymmetric slabs

Jin Hou, D. S. Citrin, Huaming Wu, Dingshan Gao, and Zhiping Zhou  »View Author Affiliations

Optics Letters, Vol. 36, Issue 12, pp. 2263-2265 (2011)

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Photonic band structures of annular photonic-crystal (APC) silicon-on-insulator (SOI) asymmetric slabs with finite thickness were investigated by the three-dimensional plane-wave expansion method. The results show that for a broad range of air-volume filling factors, APC slabs can exhibit a significantly larger bandgap than conventional circular-hole photonic-crystal (PC) slabs. Bandgap enhancements over conventional air hole PC SOI slabs as large as twofold are predicted for low air-volume filling factors below 15%. This desirable behavior suggests a potential for APC SOI slabs to serve as the basis of various optical cavities, waveguides, and mirrors.

© 2011 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(160.5293) Materials : Photonic bandgap materials
(230.5298) Optical devices : Photonic crystals

ToC Category:

Original Manuscript: March 1, 2011
Revised Manuscript: April 29, 2011
Manuscript Accepted: May 1, 2011
Published: June 8, 2011

Jin Hou, D. S. Citrin, Huaming Wu, Dingshan Gao, and Zhiping Zhou, "Enhanced bandgap in annular photonic-crystal silicon-on-insulator asymmetric slabs," Opt. Lett. 36, 2263-2265 (2011)

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