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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 21 — Jul. 20, 2013
  • pp: 5216–5220

Impact of photonic crystal boundary shape on the existence of one-way edge mode

Jie Lu, Linfang Shen, Xiaohua Deng, Xiaoer Li, and Xiaodong Zheng  »View Author Affiliations


Applied Optics, Vol. 52, Issue 21, pp. 5216-5220 (2013)
http://dx.doi.org/10.1364/AO.52.005216


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Abstract

The band structure of a two-dimensional photonic crystal (PhC) formed by a triangular lattice of air columns in a gyromagnetic material is investigated in the case when an external dc magnetic field is applied to it. It is shown that large magnetic-field-induced (MFI) bandgap is obtainable by optimizing the parameters of the PhC. The interface between a PhC with MFI bandgap and air may support unidirectional or bidirectional propagating edge modes, or even no mode, closely depending on the boundary shape of the truncated PhC. The transmission property of one-way mode sustained by the gyromagnetic PhC boundary is discussed through numerical simulation.

© 2013 Optical Society of America

OCIS Codes
(230.3810) Optical devices : Magneto-optic systems
(240.6690) Optics at surfaces : Surface waves
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: March 18, 2013
Revised Manuscript: June 24, 2013
Manuscript Accepted: June 27, 2013
Published: July 17, 2013

Citation
Jie Lu, Linfang Shen, Xiaohua Deng, Xiaoer Li, and Xiaodong Zheng, "Impact of photonic crystal boundary shape on the existence of one-way edge mode," Appl. Opt. 52, 5216-5220 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-21-5216


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