Dyakonov-Tamm wave guided by a twist defect in a structurally chiral material

The boundary-value problem for a Dyakonov-Tamm wave guided by a twist defect in a structurally chiral material and propagating along the bisector of the twist defect was formulated. The resulting dispersion equation was numerically solved. Detailed analysis showed that either two or three different...

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Bibliographic Details
Published inJournal of the Optical Society of America. A, Optics, image science, and vision Vol. 26; no. 7; p. 1615
Main Authors Gao, Jun, Lakhtakia, Akhlesh, Polo, Jr, John A, Lei, Mingkai
Format Journal Article
LanguageEnglish
Published United States 01.07.2009
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Summary:The boundary-value problem for a Dyakonov-Tamm wave guided by a twist defect in a structurally chiral material and propagating along the bisector of the twist defect was formulated. The resulting dispersion equation was numerically solved. Detailed analysis showed that either two or three different Dyakonov-Tamm waves can propagate, depending on the value of the twist angle. These waves have different phase speeds and degrees of localization to the twist-defect interface.
ISSN:1084-7529
DOI:10.1364/JOSAA.26.001615