Maximizing absorption and scattering by spherical nanoparticles

The absorption and scattering resonances of metal nanostructures are often assumed to be defined by the same condition of localized surface plasmon resonance. Using an electrostatic approximation, we demonstrate that the absorption and scattering cross sections of spherical nanoparticles reach their...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2020-03, Vol.45 (6), p.1531
Main Authors: Yezekyan, Torgom, Nerkararyan, Khachatur V, Bozhevolnyi, Sergey I
Format: Article
Language:English
Subjects:
Material absorption
Maximization
Nanoparticles
Optimization
Radiation absorption
Resonance scattering
Scattering cross sections
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The absorption and scattering resonances of metal nanostructures are often assumed to be defined by the same condition of localized surface plasmon resonance. Using an electrostatic approximation, we demonstrate that the absorption and scattering cross sections of spherical nanoparticles reach their maxima at different wavelengths, which in turn differ from that defined by the Fröhlich condition (FC). These deviations from the FC originate from and are proportional to the material absorption. Our results provide the design guidelines for maximizing absorption and scattering of spherical nanoparticles and are thus of special importance for applications where the efficiency of radiation absorption or scattering is crucial.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.387046