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Micro/nano porous polymeric material is considered a unique industrial material due to its extremely low thermal conductivity, low density, and high surface area. Therefore, it is necessary to establish an accurate thermal conductivity…

Computational Physics · Physics 2021-08-31 Haiyan Yu , Haochun Zhang , Jinchuan Zhao , Jing Liu , Xinlin Xia , Xiaohu Wu

We present results of molecular dynamics (MD) calculations of the effective thermal conductivity of nanofluids containing self-propelled nanoparticles. The translational and rotational dynamics observed in the simulations follow the…

Soft Condensed Matter · Physics 2024-06-19 Wei Peng , Anirban Chandra , Pawel Keblinski , Jeffrey L. Moran

We develop an analytical framework for nonreciprocal radiative heat transfer in two-body planar systems. Based on our formalism, we identify effects that are uniquely nonreciprocal in near-field heat transfer in planar systems. We further…

We study the near-field thermal radiation of topologically protected edge modes in a honeycomb lattice of plasmonic InSb nanoparticles. We show that the heat transport by near-field interaction is in the topological non-trivial phase…

Mesoscale and Nanoscale Physics · Physics 2022-07-06 Annika Ott , Svend-Age Biehs

Near-field radiative heat transfer (NFRHT) between dissimilar materials supporting surface polaritons in the infrared is of critical importance for applications such as photonic thermal rectification and near-field thermophotovoltaics.…

Applied Physics · Physics 2020-03-09 Lei Tang , John DeSutter , Mathieu Francoeur

We study heat radiation and radiative heat transfer for nanoparticles in the presence of an infinitely long cylinder in different geometrical configurations, based on its electromagnetic Green's tensor. The heat radiation of a single…

Quantum Physics · Physics 2024-03-14 Kiryl Asheichyk , Matthias Krüger

We develop a theoretical description of radiative thermal conductivity in hyperbolic metamaterials. We demonstrate a dramatic enhancement of the radiative thermal transport due to the super-singularity of the photonic density of states in…

Optics · Physics 2015-06-23 J. Liu , E. Narimanov

A normal-diffusion theory for heat transfer in many-body systems via carriers of thermal photons is developed. The thermal conductivity tensor is rigorously derived from fluctuational electrodynamics as a coefficient of diffusion term for…

Applied Physics · Physics 2022-11-04 Minggang Luo , Junming Zhao , Linhua Liu

We present high precision measurements of the radiative heat transfer of a glass microsphere immersed in a thermal bath in vacuum facing three different planar substrates (SiO2, SiC and Au), which exhibit very different optical behaviors in…

Understanding heat transfer in composite materials is essential for optimizing their performance in critical applications across industries such as aerospace, automotive, renewable energy, and construction. This review offers a…

Applied Physics · Physics 2025-01-28 Mohammad Alaghemandi , Morgan Alamandi

We simplify the formalism of Polder and Van Hove [Phys.Rev.B {\bf 4}, 3303(1971)], which was developed to calculate the heat transfer between macroscopic and nanoscale bodies of arbitrary shape, dispersive and adsorptive dielectric…

Materials Science · Physics 2009-11-11 A. I. Volokitin , B. N. J. Persson

We theoretically investigate heat transport in hybrid normal metal-superconductor (NS) nanojunctions focusing on the effect of thermal rectification. We show that the heat diode effect in the junction strongly depends on the transmissivity…

Mesoscale and Nanoscale Physics · Physics 2013-12-17 F. Giazotto , F. S. Bergeret

The fluctuations of the electromagnetic field are at the origin of the near-field radiative heat transfer between nanostructures, as well as the Casimir forces and torques that they exert on each other. Here, working within the formalism of…

Mesoscale and Nanoscale Physics · Physics 2023-05-31 Juan R. Deop-Ruano , Alejandro Manjavacas

Near-field radiative heat transfer (NFHT) research currently suffers from an imbalance between numerous theoretical studies, as opposed to experimental reports that remain, in proportion, relatively scarce. Existing experimental platforms…

Classical Physics · Physics 2021-11-10 Mathieu Giroux , Chang Zhang , Nikaya Snell , Gengyang Mu , Michel Stephan , Raphael St-Gelais

By utilizing Floquet driving protocols and interlacing them with a judicious reservoir emission engineering we achieve extreme non-reciprocal thermal radiation. We show that the latter is rooted in an interplay between a direct radiation…

Applied Physics · Physics 2021-05-26 Lucas J. Fernández-Alcázar , Huanan Li , Tsampikos Kottos

Polymers are usually considered as thermal insulators and their applications are limited by their low thermal conductivity. However, recent studies showed that certain polymers have surprisingly high thermal conductivity, some of which are…

Mesoscale and Nanoscale Physics · Physics 2018-05-17 Xiangfan Xu , Jie Chen , Jun Zhou , Baowen Li

We present a thermal device based on the near-field interaction between two substrates made of a polar and a metal-insulator-transition material. As a result of the temperature dependence of the optical properties, this device acts as a…

Applied Physics · Physics 2022-06-03 Simon Landrieux , Philippe Ben-Abdallah , Riccardo Messina

Thermal radiation of the hot combustion products usually does not influence noticeably the flame propagating through gaseous mixture. the situation is changed drastically in the presence even small concentration of particles, which absorb…

Fluid Dynamics · Physics 2015-09-30 M. F. Ivanov , A. D. Kiverin , M. A. Liberman

There has been a paradigm shift from the well-known laws of thermal radiation derived over a century ago, valid only when the length scales involved are much larger than the thermal wavelength (around 10 $\mu$m at room temperature), to a…

Applied Physics · Physics 2024-02-20 Pierre-Olivier Chapuis , Bong Jae Lee , Alejandro Rodriguez

We compare the confinement-induced nonlocal electromagnetic response model to the standard local Drude model routinely used in plasmonics. Both of them are applied to study the heat transfer for transdimensional plasmonic film systems. The…

Mesoscale and Nanoscale Physics · Physics 2023-07-27 Svend-Age Biehs , Igor V. Bondarev