We revisit the concept of spectral singularities in a framework of non-Hermitian cylindrical core-shell geometries featuring suitable distributions of gain and losses. In particular, we show that implied additional degrees of freedom allow a precise tailoring of such resonant phenomena and the engineering of exotic scattering responses.
A Study of Spectral Singularities in Non-Hermitian Cylindrical Core-Shell Geometries
Moccia, M.;Castaldi, G.;Galdi, V.
2018-01-01
Abstract
We revisit the concept of spectral singularities in a framework of non-Hermitian cylindrical core-shell geometries featuring suitable distributions of gain and losses. In particular, we show that implied additional degrees of freedom allow a precise tailoring of such resonant phenomena and the engineering of exotic scattering responses.File in questo prodotto:
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