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

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

Jun Gao, Akhlesh Lakhtakia, John A. Polo, Jr., and Mingkai Lei
J. Opt. Soc. Am. A 26(7) 1615-1621 (2009)

Dyakonov–Tamm waves guided by the planar surface of a chiral sculptured thin film

Muhammad Faryad, Akhlesh Lakhtakia, and Drew Patrick Pulsifer
J. Opt. Soc. Am. B 30(11) 3035-3040 (2013)

Dyakonov–Tamm waves guided by the planar interface of an isotropic dielectric material and an electro-optic ambichiral Reusch pile

John A. Polo, Jr. and Akhlesh Lakhtakia
J. Opt. Soc. Am. B 28(3) 567-576 (2011)

Compound guided waves that mix characteristics of surface-plasmon-polariton, Tamm, Dyakonov–Tamm, and Uller–Zenneck waves

Francesco Chiadini, Vincenzo Fiumara, Antonio Scaglione, and Akhlesh Lakhtakia
J. Opt. Soc. Am. B 33(6) 1197-1206 (2016)

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

Jun Gao, Akhlesh Lakhtakia, John A. Polo, and Mingkai Lei
J. Opt. Soc. Am. A 26(11) 2399-2399 (2009)