Isotropic and anisotropic surface wave cloaking techniques

McManus, T M; La Spada, Luigi; Hao, Y

Abstract

In this paper we compare two different approaches for surface waves cloaking. The first technique is a unique application of Fermat's principle and requires isotropic material properties, but owing to its derivation is limited in its applicability. The second technique utilises a geometrical optics approximation for dealing with rays bound to a two dimensional surface and requires anisotropic material properties, though it can be used to cloak any smooth surface. We analytically derive the surface wave scattering behaviour for both cloak techniques when applied to a rotationally symmetric surface deformation. Furthermore, we simulate both using a commercially available full-wave electromagnetic solver and demonstrate a good level of agreement with their analytically derived solutions. Our analytical solutions and simulations provide a complete and concise overview of two different surface wave cloaking techniques.

Citation

McManus, T. M., La Spada, L., & Hao, Y. (2016). Isotropic and anisotropic surface wave cloaking techniques. Journal of Optics, 18(4), 044005. https://doi.org/10.1088/2040-8978/18/4/044005

• Journal Article Type: Article
• Acceptance Date: Oct 30, 2015
• Online Publication Date: Apr 1, 2016
• Publication Date: Apr 1, 2016
• Deposit Date: Nov 21, 2018
• Publicly Available Date: Nov 22, 2018
• Journal: Journal of Optics
• Print ISSN: 2040-8978
• Electronic ISSN: 2040-8986
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 18
• Issue: 4
• Pages: 044005
• DOI: https://doi.org/10.1088/2040-8978/18/4/044005
• Keywords: transformation optics, surface wave, invisibility cloak,
• Public URL: http://researchrepository.napier.ac.uk/Output/1374592
• Contract Date: Nov 22, 2018