arXiv subjects

M. Tschikin

Publications and source records attributed to M. Tschikin.

2 recordsLinked to original sources

arXiv2012

Radiative cooling of nanoparticles close to a surface

We study the radiative cooling of polar and metallic nanoparticles immersed in a thermal bath close to a partially reflecting surface. The dynamics of relaxation is investigated at different distances from the surface, i.e., in the near-field and far-field zones. We demonstrate the existence of an oscillating behavior for the thermal relaxation time with respect to the separation distance from the surface, an analog of Friedel oscillations in Fermi liquids.

cond-mat.mes-hall↗

arXiv2012

Towards a black body for near-field thermal radiation

We study the near-field heat exchange between hyperbolic materials and demonstrate that these media are able to support broadband frustrated modes which transport heat by photon tunnelling with a high efficiency close to the theoretical limit. We predict that hyperbolic materials can be designed to be perfect thermal emitters at nanoscale and derive the near-field analog of the blackbody limit.

cond-mat.mes-hall↗