Nonradiating photonics with resonant dielectric nanostructures

K Koshelev, G Favraud, A Bogdanov, Y Kivshar… - …, 2019 - degruyter.com
Nonradiating sources of energy have traditionally been studied in quantum mechanics and
astrophysics but have received very little attention in the photonics community. This situation …

Optical anapoles: concepts and applications

KV Baryshnikova, DA Smirnova… - Advanced Optical …, 2019 - Wiley Online Library
Interference of electromagnetic modes supported by subwavelength photonic structures is
one of the key concepts that underpins the nanoscale control of light in metaoptics. It drives …

Ultrasensitive terahertz sensing with high-Q toroidal dipole resonance governed by bound states in the continuum in all-dielectric metasurface

Y Wang, Z Han, Y Du, J Qin - Nanophotonics, 2021 - degruyter.com
Toroidal dipole (TD) with weak coupling to the electromagnetic fields offers tremendous
potential for advanced design of photonic devices. However, the excitation of high quality …

Radial bound states in the continuum for polarization-invariant nanophotonics

L Kühner, L Sortino, R Berté, J Wang, H Ren… - Nature …, 2022 - nature.com
All-dielectric nanophotonics underpinned by the physics of bound states in the continuum
(BICs) have demonstrated breakthrough applications in nanoscale light manipulation …

Toroidal metaphotonics and metadevices

A Ahmadivand, B Gerislioglu, R Ahuja… - Laser & Photonics …, 2020 - Wiley Online Library
Toroidal moments in artificial media have received growing attention and considered as a
promising framework for initiating novel approaches to manage intrinsic radiative losses in …

Strongly resonant silicon slot metasurfaces with symmetry-protected bound states in the continuum

JF Algorri, F Dell'Olio, P Roldán-Varona… - Optics …, 2021 - opg.optica.org
In this work, a novel all-dielectric metasurface made of arrayed circular slots etched in a
silicon layer is proposed and theoretically investigated. The structure is designed to support …

Multiple toroidal dipole Fano resonances of asymmetric dielectric nanohole arrays

C Zhou, S Li, Y Wang, M Zhan - Physical Review B, 2019 - APS
The toroidal dipole is a fundamental electromagnetic excitation independent from the well-
known electric and magnetic dipoles, which enables strong resonances in nanostructure …

Terahertz toroidal metamaterial with tunable properties

Z Song, Y Deng, Y Zhou, Z Liu - Optics express, 2019 - opg.optica.org
We present a tunable metamodulator to work at terahertz frequencies by employing the
dependency of toroidal dipolar resonance on the conductivity of vanadium dioxide …

Optical radiation manipulation of Si-Ge2Sb2Te5 hybrid metasurfaces

C Zhou, S Li, M Fan, X Wang, Y Xu, W Xu, S **ao… - Optics …, 2020 - opg.optica.org
Active optical metadevices have attracted growing interest for the use in nanophotonics
owing to their flexible control of optics. In this work, by introducing the phase-changing …

Polarization-independent toroidal dipole resonances driven by symmetry-protected BIC in ultraviolet region

X Wang, S Li, C Zhou - Optics Express, 2020 - opg.optica.org
Optical resonances have gained great attention in nanophotonics attributing to their large
enhancement of local field. In this work, we investigate polarization-independent toroidal …