학술논문

Polarizability approximations generalized to dielectric nanospheres
Document Type
Conference
Source
2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) Numerical Simulation of Optoelectronic Devices (NUSOD), 2016 International Conference on. :3-4 Jul, 2016
Subject
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Dielectrics
Plasmons
Optical scattering
Magnetic resonance
Optical polarization
Integrated optics
Permittivity
Language
ISSN
2158-3242
Abstract
Point-like models are simplified expressions of the polarizability that are commonly employed to study the light scattering by small particles. These models, such as the quasistatic approximation, have played a key role in plasmonics in the understanding of the resonant light interaction with metallic nanoparticles. However, these models fail to predict morphological resonances hosted by dielectric particles. This study aims to derive point like models that can describe dipolar resonances of particles made of either positive or negative permittivity.