TY - JOUR A1 - Ben-Abdallah, Philippe A1 - Messina, Riccardo A1 - Biehs, Svend-Age A1 - Tschikin, Maria A1 - Joulain, Karl A1 - Henkel, Carsten T1 - Heat superdiffusion in plasmonic nanostructure networks JF - Physical review letters N2 - The heat transport mediated by near-field interactions in networks of plasmonic nanostructures is shown to be analogous to a generalized random walk process. The existence of superdiffusive regimes is demonstrated both in linear ordered chains and in three-dimensional random networks by analyzing the asymptotic behavior of the corresponding probability distribution function. We show that the spread of heat in these networks is described by a type of Levy flight. The presence of such anomalous heat-transport regimes in plasmonic networks opens the way to the design of a new generation of composite materials able to transport heat faster than the normal diffusion process in solids. Y1 - 2013 U6 - https://doi.org/10.1103/PhysRevLett.111.174301 SN - 0031-9007 SN - 1079-7114 VL - 111 IS - 17 PB - American Physical Society CY - College Park ER - TY - JOUR A1 - Joulain, Karl A1 - Ben-Abdallah, Philippe A1 - Chapuis, Pierre-Olivier A1 - De Wilde, Y. A1 - Babuty, A. A1 - Henkel, Carsten T1 - Strong tip-sample coupling in thermal radiation scanning tunneling microscopy JF - Journal of quantitative spectroscopy & radiative transfer KW - Near-field thermal radiation KW - Infrared radiation KW - Local density of states KW - Scanning near-field optical microscopy KW - Tip-sample interactions KW - Local spectroscopy Y1 - 2014 U6 - https://doi.org/10.1016/j.jqsrt.2013.12.006 SN - 0022-4073 SN - 1879-1352 VL - 136 SP - 1 EP - 15 PB - Elsevier CY - Oxford ER -