Thermal near-field energy density and LDOS in topological 1D SSH chains and 2D SSH lattices of plasmonic nanoparticles

Abstract

We derive a general expression for electric and magnetic part of the near-field energy density of $N$ dipoles of temperatures $T_1,\dots ,T_N$ immersed in a background field having a different temperature $T_b$. In contrast to former expressions this inclusion of the background field allows for determining the energy density of heated or cooled isotropic dipolar objects within an arbitrary environment which is thermalized at a different temperature. Furthermore, we show how the energy density is related to the local density of states. We use this general expression to study the near-field enhanced energy density at the edges and corners of 1D Su-Schrieffer-Heeger chains and 2D Su-Schrieffer-Heeger lattices of plasmonic InSb nanoparticles when the phase transition from a topological trivial to a topological non-trivial state is made. We discuss the robustness of these modes when adding defects and the possibility to measure the topological edge and corner modes.

References in corpus (9)

• Novel Topological Phase with Zero Berry Curvature
• Topological collective plasmons in bipartite chains of metallic nanoparticles
• Radiative thermal diode driven by non-reciprocal surface waves
• Heat Transport Through Plasmonic Interactions in Closely Spaced Metallic Nanoparticles Chains
• Radiative Heat Transfer in Anisotropic Many-Body Systems: Tuning and Enhancement
• Topological Angular Momentum and Radiative Heat Transport in Closed Orbits
• Ballistic near-field heat transport in dense many-body systems
• Radiative heat flux through a topological Su-Schrieffer-Heeger chain of plasmonic nanoparticles
• Dipole model for far-field thermal emission of a nanoparticle above a planar substrate

Cited by in corpus (7)

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• Topological near-field heat flow in a honeycomb lattice
• Thermal radiation and near-field thermal imaging of a plasmonic Su-Schrieffer-Heeger chain
• Topological Materials for Near-Field Radiative Heat Transfer
• Topological phonon polariton enhanced radiative heat transfer in bichromatic nanoparticle arrays mimicking Aubry-André-Harper model
• Generalized coupled dipole method for thermal far-field radiation
• Ultralow radiative heat flux by Anderson localization in quasiperiodic plasmonic chains