Free-space Excitation of Resonant Cavities formed from Cloaking Metamaterial

Details Free-space Excitation of Resonant Cavities formed from Cloaking Metamaterial Free-space Excitation of Resonant Cavities formed from Cloaking Metamaterial

2008-10-28

arxiv.org/abs/0810.4961v1

Physics

Optics

to appear J. Modern Optics

Scientific paper

We propose a new class of resonant electromagnetic structures, and study their response to free-space illumination. The structures consist of partial cylindrical shells that have cloaking material properties proposed by Pendry et al. These metamaterial shells have apertures that allow the propagation of incident irradiation into an interior resonant cavity. We use full wave time-harmonic analysis to study the field distribution inside the cavity, and show that an analogue of Whispering Gallery Modes (WGMs) can be efficiently excited via free-space illumination.

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