Electrodynamical Light Trapping Using Whispering-Gallery Resonances in Hyperbolic Cavities

We theoretically study spherical cavities composed of hyperbolic metamaterials with indefinite permittivity tensors. Such cavities are capable of electrodynamically confining fields with deep subwavelength cavity sizes. The supported resonant modes are analogous to the whispering-gallery modes found...

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Bibliographic Details
Main Authors: Chihhui Wu, Alessandro Salandrino, Xingjie Ni, Xiang Zhang
Format: Article
Language:English
Published: American Physical Society 2014-04-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.4.021015