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

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posted on 2023-01-10, 02:47 authored by Florian Herz, Svend-Age Biehs
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.

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