Manifestation of extremely high-Q pseudo-modes in scattering of a Bessel light beam by a sphere
Author:
- 29 July 2020
- journal article
- research article
- Published by Optica Publishing Group in Optics Letters
- Vol. 45 (15) , 4300-4303
Abstract
The exact analytical solution of Maxwell equations for a Bessel light beam scattered by a sphere is found. Scattered power, stored energy, and a generalized Q factor as a function of frequency, the sphere radius, permittivity, and the Bessel beam angle are found. On the basis of this solution, modes and pseudo-modes of a dielectric sphere are extracted by calculation of the generalized Q factor. It is shown that an appropriate choice of Bessel beam parameters can provide excitation of a single given mode and an unlimited value of the radiative Q factor of pseudo-modes.Keywords
All Related Versions
Funding Information
- Russian Foundation for Basic Research (18-02-00315)
This publication has 32 references indexed in Scilit:
- Ultrasensitive hyperspectral imaging and biodetection enabled by dielectric metasurfacesNature Photonics, 2019
- Refractive index sensor based on all-dielectric gradient metasurfaceSensing and Bio-Sensing Research, 2019
- Nonlinear light generation in topological nanostructuresNature Nanotechnology, 2018
- Quantum entanglement of the spin and orbital angular momentum of photons using metamaterialsScience, 2018
- Metasurfaces: a new look at Maxwell's equations and new ways to control lightUspekhi Fizicheskih Nauk, 2017
- Meta-Optics with Mie ResonancesOptics and Photonics News, 2017
- Designing large, high-efficiency, high-numerical-aperture, transmissive meta-lenses for visible lightOptics Express, 2016
- All-dielectric optical nanoantennasOptics Express, 2012
- Demonstration of a spaser-based nanolaserNature, 2009
- Beiträge zur Optik trüber Medien, speziell kolloidaler MetallösungenAnnalen der Physik, 1908