Document Type

Article

Publication Date

12-30-2014

Abstract

We propose a class of spectral singularities emerging from the coincidence of two independent singularities with highly directional responses. These spectral singularities result from resonance trapping induced by the interplay between parity-time symmetry and Fano resonances. At these singularities, while the system is reciprocal in terms of a finite transmission, a simultaneous infinite reflection from one side and zero reflection from the opposite side can be realized.

Comments

© Physical Review Letters. Original version available at: http://doi.org/10.1103/PhysRevLett.113.263905

Publication Title

Physical Review Letters

DOI

10.1103/PhysRevLett.113.263905

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