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.
Thermal radiation and near-field thermal imaging of a plasmonic Su–Schrieffer–Heeger chain
Note: This paper is part of the APL Special Collection on Thermal Radiation at the Nanoscale and Applications.
Florian Herz, Svend-Age Biehs; Thermal radiation and near-field thermal imaging of a plasmonic Su–Schrieffer–Heeger chain. Appl. Phys. Lett. 31 October 2022; 121 (18): 181701. https://doi.org/10.1063/5.0123515
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