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Inspired by the photosynthetic energy transfer process, we theoretically propose a method to realize non-reciprocal optical transmission in an array of coupled resonators. The optical non-reciprocity of the coupled resonators arises from…

Optics · Physics 2023-11-28 Yi-Xuan Yao , Qing Ai

Nonreciprocal thermal emitters that break Kirchhoff's law of thermal radiation promise exciting applications for thermal and energy applications. The design of the bandwidth and angular range of the nonreciprocal effect, which directly…

Materials Science · Physics 2024-09-17 Bach Do , Sina Jafari Ghalekohneh , Taiwo Adebiyi , Bo Zhao , Ruda Zhang

Theoretical calculations of the cooling potential of radiative cooling materials are crucial for determining their cooling capability under different meteorological conditions and evaluating their performance. To enable these calculations,…

Atmospheric and Oceanic Physics · Physics 2021-08-19 Jyotirmoy Mandal , Xin Huang , Aaswath P. Raman

We show that radiative cooling profiles, when described in temperature coordinates, are insensitive to surface temperature $T_s$. We argue this theoretically as well as confirm it in cloud-resolving simulations of radiative convective…

Atmospheric and Oceanic Physics · Physics 2017-11-10 Nadir Jeevanjee , David M. Romps

Understanding the fundamental limits of various energy conversion approaches is essential for assessing their efficiency and power output. In this work, we derive general performance bounds for thermoradiative heat engines that exchange…

Applied Physics · Physics 2025-07-29 Maxime Giteau , Michela F. Picardi , Georgia T. Papadakis

An interest for the low-energy range of the nonextensive distribution function arises from the study of radiative recombination in electron cooling devices in particle accelerators, whose experimentally measured reaction rates are much…

Atomic Physics · Physics 2009-11-11 G. Maero , P. Quarati , F. Ferro

Magnetic reconnection has long been known to be the most important mechanism as quick conversion of magnetic field energy into plasma kinetic energy. In addition, energy dissipation by reconnection has gained attention not only as a plasma…

High Energy Astrophysical Phenomena · Physics 2023-04-12 Masahiro Hoshino

In this work, we study the thermalization between two bodies separated by a vacuum gap by coupling the non-Fourier behavior of the materials with the radiative heat transfer in the near-field. Unlike the diffusion-type temperature profile,…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 D. Becerril , A. Camacho de la Rosa , R. Esquivel-Sirvent

In this work we solve approximately the radiative heat transfer problem in one dimension to perform a comparative analysis of the time averaged performance of the partially transparent radiative windows and radiative coolers. Our physical…

Applied Physics · Physics 2019-06-19 E. Zhang , C. Caloz , M. Skorobogatiy

A general formalism for calculating the Radiative Heat Transfer in many body systems with anisotropic component is presented. Our scheme extends the theory of radiative heat transfer in isotropic many body systems to anisotropic cases. In…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 M. Nikbakht

We theoretically investigate the enhancement of thermoelectric cooling performance in thermoelectric devices made of materials with inhomogeneous thermal conductivity, beyond the usual practice of enhancing thermoelectric figure of merit…

Mesoscale and Nanoscale Physics · Physics 2016-02-11 Tingyu Lu , Jun Zhou , Nianbei Li , Ronggui Yang , Baowen Li

An improved thermodynamic cycle is proposed, where the cooling effect of an electrocaloric refrigerant is enhanced by applying a reversed electric field. In contrast to conventional adiabatic heating or cooling by on-off cycles of the…

Computational Physics · Physics 2016-10-05 Yang-Bin Ma , Nikola Novak , Jurij Koruza , Tongqing Yang , Karsten Albe , Bai-Xiang Xu

To violate Kirchhoff s law is very important in the areas of thermal radiation. However, due to the weak nonreciprocity in natural materials, it is necessary to engineer novel structures to break the balance between emission and absorption.…

Optics · Physics 2021-09-14 Jun Wu1 , Feng Wu , Tiancheng Zhao , Han Zhai , Xiaohu Wu

A thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. This behavior is generally due to the non-linear dependence of certain physical properties with respect to the temperature. Here we…

Optics · Physics 2015-06-16 Philippe Ben-Abdallah , Svend-Age Biehs

The reciprocity principle governs the symmetry in transmission of electromagnetic and acoustic waves, as well as the diffusion of heat between two points in space, with important consequences for thermal management and energy harvesting.…

Applied Physics · Physics 2022-01-19 Jiaxin Li , Ying Li , Pei-Chao Cao , Xu Zheng , Yu-Gui Peng , Baowen Li , Xue-Feng Zhu , Andrea Alù , Cheng-Wei Qiu

We theoretically study the thermal relaxation of many-body systems under the action of oscillating external fields. When the magnitude or the orientation of a field is modulated around values where the pairwise heat-exchange conductances…

Mesoscale and Nanoscale Physics · Physics 2021-03-31 Riccardo Messina , Annika Ott , Christoph Kathmann , Svend-Age Biehs , Philippe Ben-Abdallah

A study of the effect of thermal dissipation on quantum reinforcement learning is performed. For this purpose, a nondissipative quantum reinforcement learning protocol is adapted to the presence of thermal dissipation. Analytical…

Quantum Physics · Physics 2023-08-08 M. L. Olivera-Atencio , L. Lamata , M. Morillo , J. Casado-Pascual

This paper deals with the thermal performances of roof-mounted radiant barriers. Using dynamic simulations of a mathematical model of a whole test cell including a radiant barrier installed between the roof top and the ceiling, the thermal…

Instrumentation and Detectors · Physics 2014-10-08 Frédéric Miranville , Harry Boyer , Franck Lucas , Seriacaroupin Johan

In this paper, we investigate the effect of cooling on the X-ray properties of galaxy clusters. We have performed N-body, hydrodynamical simulations both with and without the effects of radiative cooling, but neglecting the effects of star…

Astrophysics · Physics 2009-10-31 F. R. Pearce , P. A. Thomas , H. M. P. Couchman , A. C. Edge

As a representative device exploiting both the solar energy and the radiative cooling of deep-sky, the radiative temperature regulator (RTR) could switch between heating and cooling modes self-adaptively at different temperatures. However,…

Optics · Physics 2021-02-26 Haipeng Zhao , Yaohui Zhan , Shuliang Dou , Liang Wang , Yao Li , Xiaofeng Li