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Research Activities > Programs > Electromagnetic Metamaterials

Electromagnetic Metamaterials and their Approximations:
Practical and Theoretical Aspects

CSIC Building (#406), Seminar Room 4122.
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Negative Refraction and High-performance PDE Solvers: Superlens Cloaking of Small Dielectric Bodies

Professor Oscar Bruno

California Institute of Technology

Abstract:   It has been conjectured that, in the quasistatic regime, dielectric bodies of finite size could be perfectly cloaked by certain cylindrical arrangements of materials of positive and negative permittivities known as superlenses. We consider this and related negative refraction problems, and associated problems of solution of PDEs involving non-coercive coefficients and singular boundaries. In particular we show that, although they do not cloak perfectly dielectrics objects of any size, cylindrical superlenses do cloak, to a significant extent, dielectric bodies of small size.

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