Maximizing absorption and scattering by spherical nanoparticles

Torgom Yezekyan, Khachatur V. Nerkararyan, Sergey I. Bozhevolnyi*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The absorption and scattering resonances of metal nanostructures are often assumed to be defined b y 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.

Original languageEnglish
JournalOptics Letters
Volume45
Issue number6
Pages (from-to)1531-1534
ISSN0146-9592
DOIs
Publication statusPublished - 15. Mar 2020

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