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论文类型：期刊论文

发表时间：2009-07-01

发表刊物：JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION

收录刊物：SCIE、EI、Scopus

卷号：26

期号：7

页面范围：1615-1621

ISSN号：1084-7529

摘要：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. (C) 2009 Optical Society of America