Thermal radiation and near-field thermal imaging of a plasmonic Su–Schrieffer

Thermal radiation and near-field thermal imaging of a plasmonic Su–Schrieffer–Heeger chain

Published:2022-10-31 Issue:18 Volume:121 Page:181701
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:Appl. Phys. Lett.

Author:

Herz Florian¹,Biehs Svend-Age¹^ORCID

Affiliation:

1. Institut für Physik, Carl von Ossietzky Universität, D-26111 Oldenburg, Germany

Abstract

We investigate the direct thermal emission spectrum of a plasmonic Su–Schrieffer–Heeger chain of InSb nanoparticles as well as its far-field emission due to near-field scattering by a sharp tip as it is used in scattering type thermal microscopes. We discuss the measurability of the topological phase transition in such far-field and near-field experiments and highlight the signatures of the topological edge modes. We further discuss the impact of a substrate.

Funder

Deutsche Forschungsgemeinschaft

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0123515

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