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Discrete sources method for modeling the nonlocal optical response of a nonspherical particle dimer

Eremin, Yuri and Doicu, Adrian and Wriedt, Thomas (2018) Discrete sources method for modeling the nonlocal optical response of a nonspherical particle dimer. Journal of Quantitative Spectroscopy & Radiative Transfer, 217, pp. 35-44. Elsevier. DOI: 10.1016/j.jqsrt.2018.05.026 ISSN 0022-4073

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Official URL: https://www.sciencedirect.com/science/article/pii/S0022407318302735

Abstract

A modified scheme of the discrete sources method for modeling the nonlocal optical response of a plasmonic dimer consisting of two identical axisymmetric metallic particles has been developed. The optical cross sections have been computed in the frequency domain for prolate spheroids with different aspect ratios and for different gap sizes. The results show that the generalized nonlocal optical response model leads to a blue shift, a plasmon mode damping, and a plasmon mode broadening of the optical cross sections as compared to the local-response approximation. These effects more pronounced when the aspect ratio of the spheroid increases and the gap size decreases. It has been confirmed that the additional boundary condition appears to be the main origin for the blue shift.

Item URL in elib:https://elib.dlr.de/125134/
Document Type:Article
Title:Discrete sources method for modeling the nonlocal optical response of a nonspherical particle dimer
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Eremin, YuriLomonosov University MoscowUNSPECIFIED
Doicu, AdrianAdrian.Doicu (at) dlr.deUNSPECIFIED
Wriedt, ThomasUniversity of BremenUNSPECIFIED
Date:26 September 2018
Journal or Publication Title:Journal of Quantitative Spectroscopy & Radiative Transfer
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:217
DOI :10.1016/j.jqsrt.2018.05.026
Page Range:pp. 35-44
Publisher:Elsevier
ISSN:0022-4073
Status:Published
Keywords:electromagnetic scattering, discrete sources method
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Doicu, Adrian
Deposited On:17 Dec 2018 11:37
Last Modified:01 Nov 2019 03:00

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