We propose a simple integrated narrowband filter consisting of two grooves on the surface of a slab waveguide. Spectral ......

Hybrid plasmonic waveguides leveraging the coupling between dielectric modes and plasmon polaritons have emerged as a ma......

Parity–time (PT) symmetry has been demonstrated in the frame of classic optics. Its applications in laser science have ......

We study light propagation through cyclic arrays, composed by copies of a given PT-sy...

In this work, we first discuss systematically three general approaches to construct a non-Hermitian flat band, defined b......