TY - JOUR
T1 - Zeeman gyrotropic scatterers
T2 - Resonance splitting, anomalous scattering, and embedded eigenstates
AU - Valagiannopoulos, Constantinos
AU - Gangaraj, S. Ali Hassani
AU - Monticone, Francesco
N1 - Funding Information:
This work was supported by the Nazarbayev University Small grant no. 090118FD5349; Nazarbayev University ORAU grant no. 20162031; MES RK state-targeted program BR0523 6454 to CV; and National Science Foundation (NSF) with grant no. 1741694 to SAHG and FM.
Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Nazarbayev University Small grant no. 090118FD5349; Nazarbayev University ORAU grant no. 20162031; MES RK state-targeted program BR0523 6454 to CV; and National Science Foundation (NSF) with grant no. 1741694 to SAHG and FM.
Publisher Copyright:
© The Author(s) 2018.
PY - 2018/10/25
Y1 - 2018/10/25
N2 - Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials have been the subject of intense efforts in the past couple of decades. In this article, we present a full analysis of the unusual and extreme scattering properties of an important class of complex scatterers, namely, gyrotropic cylindrical bodies, including both homogeneous and core–shell configurations. Our study unveils a number of interesting effects, including Zeeman splitting of plasmonic scattering resonances, tunable gyrotropy-induced rotation of dipolar radiation patterns as well as extreme Fano resonances and non-radiating eigenmodes (embedded eigenstates) of the gyrotropic scatterer. We believe that these theoretical findings may enable new opportunities to control and tailor scattered fields beyond what is achievable with isotropic reciprocal objects, being of large significance for different applications, from tunable directive nano-antennas to selective chiral sensors and scattering switches, as well as in the context of nonreciprocal and topological metamaterials.
AB - Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials have been the subject of intense efforts in the past couple of decades. In this article, we present a full analysis of the unusual and extreme scattering properties of an important class of complex scatterers, namely, gyrotropic cylindrical bodies, including both homogeneous and core–shell configurations. Our study unveils a number of interesting effects, including Zeeman splitting of plasmonic scattering resonances, tunable gyrotropy-induced rotation of dipolar radiation patterns as well as extreme Fano resonances and non-radiating eigenmodes (embedded eigenstates) of the gyrotropic scatterer. We believe that these theoretical findings may enable new opportunities to control and tailor scattered fields beyond what is achievable with isotropic reciprocal objects, being of large significance for different applications, from tunable directive nano-antennas to selective chiral sensors and scattering switches, as well as in the context of nonreciprocal and topological metamaterials.
KW - embedded eigenstates
KW - gyrotropy
KW - plasmonic resonances
KW - Scattering
KW - Zeeman effect
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U2 - 10.1177/1847980418808087
DO - 10.1177/1847980418808087
M3 - Article
AN - SCOPUS:85055415840
SN - 1847-9804
VL - 8
JO - Nanomaterials and Nanotechnology
JF - Nanomaterials and Nanotechnology
ER -