Spectroscopy and biosensing with optically resonant dielectric nanostructures

A Krasnok, M Caldarola, N Bonod… - Advanced optical …, 2018 - Wiley Online Library
Resonant dielectric nanoparticles made of materials with large positive dielectric permittivity,
such as Si, GaP, GaAs, have become a powerful platform for modern light science, enabling …

Exact multipolar decompositions with applications in nanophotonics

R Alaee, C Rockstuhl… - Advanced Optical …, 2019 - Wiley Online Library
The multipolar decomposition of electromagnetic sources is an important tool for the study of
light–matter interactions in general, and optical materials in particular. Here, a report is given …

Generalized Kerker effects in nanophotonics and meta-optics

W Liu, YS Kivshar - Optics express, 2018 - opg.optica.org
The original Kerker effect was introduced for a hypothetical magnetic sphere, and initially it
did not attract much attention due to a lack of magnetic materials required. Rejuvenated by …

Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion

M Caldarola, P Albella, E Cortés, M Rahmani… - Nature …, 2015 - nature.com
Nanoplasmonics has recently revolutionized our ability to control light on the nanoscale.
Using metallic nanostructures with tailored shapes, it is possible to efficiently focus light into …

Ultra-directional forward scattering by individual core-shell nanoparticles

W Liu, J Zhang, B Lei, H Ma, W **e, H Hu - Optics express, 2014 - opg.optica.org
We study the angular scattering properties of individual core-shell nanoparticles that support
simultaneously both electric and optically-induced magnetic resonances of different orders …

Reconfigurable semiconductor phased-array metasurfaces

PP Iyer, NA Butakov, JA Schuller - Acs Photonics, 2015 - ACS Publications
Phased-array metamaterial systems are enabling new classes of refractive and diffractive
optical elements through spatial-phase engineering. In this article, we develop design …

Generalized magnetic mirrors

W Liu - Physical review letters, 2017 - APS
We propose generalized magnetic mirrors that can be achieved by excitations of sole
electric resonances. Conventional approaches to obtain magnetic mirrors rely heavily on …

Invisible nanowires with interfering electric and toroidal dipoles

W Liu, J Zhang, B Lei, H Hu, AE Miroshnichenko - Optics letters, 2015 - opg.optica.org
By studying the scattering of normally incident plane waves by a single nanowire, we reveal
the indispensable role of toroidal multipole excitation in multipole expansions of radiating …

Multipolar interference effects in nanophotonics

W Liu, YS Kivshar - … Transactions of the Royal Society A …, 2017 - royalsocietypublishing.org
Scattering of electromagnetic waves by an arbitrary nanoscale object can be characterized
by a multipole decomposition of the electromagnetic field that allows one to describe the …

Toroidal dipole‐induced transparency in core–shell nanoparticles

W Liu, J Zhang… - Laser & Photonics …, 2015 - Wiley Online Library
The scattering of nanoparticles plays a profound role in the recently flourishing fields of
plasmonics and metamaterials. However, current investigations into nanoparticle scattering …