Phys. Rev. Rapid Comm.

Volume B65, Page 201104


All-angle negative refraction without negative effective index

Chiyan Luo, Steven G. Johnson, J. D. Joannopoulos and J.B. Pendry


We describe an all-angle negative refraction effect that does not employ a negative effective index of refraction and involves photonic crystals. A few simple criteria sufficient to achieve this behavior are presented. To illustrate this phenomenon, a microsuperlens is designed and numerically demonstrated.



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