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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| JOSA B: OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 12 — Dec. 1, 2009
  • pp: B74–B82

Optics InfoBase > JOSA B > Page B74

On Dyakonov-Tamm waves localized to a central twist defect in a structurally chiral material

Jun Gao, Akhlesh Lakhtakia, and Mingkai Lei

JOSA B, Vol. 26, Issue 12, pp. B74-B82        doi:10.1364/JOSAB.26.000B74

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  • OCIS Codes:
  • (160.1190) Materials : Anisotropic optical materials
  • (240.6690) Optics at surfaces : Surface waves
  • (260.2110) Physical optics : Electromagnetic optics

Citation
Jun Gao, Akhlesh Lakhtakia, and Mingkai Lei, "On Dyakonov-Tamm waves localized to a central twist defect in a structurally chiral material," J. Opt. Soc. Am. B 26, B74-B82 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-12-B74

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Abstract

The boundary-value problem of the propagation of Dyakonov-Tamm waves localized to a central twist defect in a structurally chiral material was formulated and numerically solved. The angular magnitude of the twist defect and the orientation of the twist defect relative to the direction of propagation were varied. Detailed analysis showed that either two or three different Dyakonov-Tamm waves can propagate, depending on the angular magnitude and the orientation of the twist defect. These waves have different phase speeds and degrees of localization to the twist-defect interface. The most localized Dyakonov-Tamm waves are essentially confined to within two structural periods of the twist-defect interface on either side.

© 2009 Optical Society of America

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History
Original Manuscript: July 17, 2009
Manuscript Accepted: August 24, 2009
Published: October 6, 2009

References

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Author Affiliations

Jun Gao, Akhlesh Lakhtakia

NanoMM--Nanoengineered Metamaterials Group, Department of Engineering Science and Mechanics,Pennsylvania State University, University Park, Pennsylvania 16802, USA

Mingkai Lei

Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

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