We discuss the unusual scattering features enabled by confining electromagnetic energy and enhancing the interactions of light and matter in nanostructures, based on the concept of embedded eigenstates within the radiation continuum. We discuss how metasurfaces and metamaterials may be able to trap light in plain sight, and how lossless structures may be able to store energy in the transient by engaging complex zeros in the scattering response of the system. We also shed light on the role that reciprocity plays in the response of these systems, and how non-reciprocal or non-linear systems may enable unusual functionalities, playing a pivotal role in low-energy nanophotonic opto-electronic and bio-sensing devices.
Younes Radi, Alex Krasnok, and Andrea Alù, "Unusual scattering features of bound states in the continuum in open structures (Conference Presentation)," Proc. SPIE 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII, 105410R (Presented at SPIE OPTO: January 31, 2018; Published: 14 March 2018); https://doi.org/10.1117/12.2289187.5751516189001.
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