Can a Nonradiating Mode Be Externally Excited? Nonscattering States versus Embedded Eigenstates
Sign Up to like & getrecommendations! Published in 2019 at "ACS Photonics"
DOI: 10.1021/acsphotonics.9b01104
Abstract: In this Letter, we discuss the general problem of exciting radiationless field distributions in open cavities, with the goal of clarifying recent findings on this topic. We point out that the radiationless scattering states, like… read more here.
Keywords: nonradiating mode; externally excited; mode externally; embedded eigenstates ... See more keywords
Topological scattering singularities and embedded eigenstates for polarization control and sensing applications
Sign Up to like & getrecommendations! Published in 2021 at "Photonics Research"
DOI: 10.1364/prj.424247
Abstract: Epsilon-near-zero and epsilon near-pole materials enable reflective systems supporting a class of symmetry-protected and accidental embedded eigenstates (EE) characterized by a diverging phase-resonance. Here we show that pairs of topologically protected scattering singularities necessarily emerge… read more here.
Keywords: scattering singularities; polarization control; control; embedded eigenstates ... See more keywords