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Near-field radiative heat transfer (NFRHT) has received growing attentionbecause of its high intensity far beyond the Planck's black-body limit.Insertion of a third object in proximity of the two articles can significantlyinfluence and manipulate its NFRHT. However, for the system composed of manyparticles, the effect of many-body interaction (MBI) on NFRHT between arbitrarytwo particles is still not well understood. In this work, the MBI is studiedfor two particles with three typical proximate ensembles: particle chain, planeand grating. With the increasing of proximate particle size, the MBI on NFRHTwill experience a radical change from inhibition to enhancement. Thepolarizability of the proximate particle increases with particle radius, whichenhances the interaction between the proximate particles and the main particle,and then results in enhancement of NFRHT between the main particles. Whentwisting the proximate particle ensemble, the proximate MBI accounts for asmooth and non-oscillated twisting angle dependence of NFRHT, different fromthe oscillation phenomenon of NFRHT for particle gratings. This work deepensthe understanding of NFRHT in dense particulate systems.

Many-body interaction on near-field radiative heat transfer between two nanoparticles caused by proximate particle ensembles