Electromagnetic surface waves at exceptional points. (14th December 2020)

• Record Type: Journal Article
• Authors: Lakhtakia, Akhlesh; Mackay, Tom G; Zhou, Chenzhang
• Is Part Of: European journal of physics. Volume 42:Number 1(2021)
• Publication Date: 2020-12-14
• Subjects: exceptional points -- surface waves -- Voigt waves; Physics -- Periodicals; Physics -- Study and teaching (Higher) -- Europe -- Periodicals; 530
• DOI: 10.1088/1361-6404/abb6c7
• Languages: English
• ISSNs: 0143-0807

Abstract

Abstract: Guided by the planar interface of two dissimilar linear, homogeneous mediums, a Voigt surface wave arises due to an exceptional point of either of the two matrixes necessary to describe the spatial characteristics in the direction normal to the planar interface. There is no requirement for either or both partnering mediums to be dissipative, unlike a Voigt plane wave which can propagate only in a dissipative (or active) medium.