Twist-induced near-field radiative thermal regulator assisted by cylindrical surface modes

被引：0

作者：

Wang, Jian-You ^{[1
,2
]}

Zhang, Yong ^{[1
,2
]}

Luo, Xiao-Ping ^{[1
,2
]}

Antezza, Mauro ^{[3
,4
]}

Yi, Hong-Liang ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, 92 West Dazhi St, Harbin 150001, Peoples R China

[2] Minist Ind & Informat Technol, Key Lab Aerosp Thermophys, Harbin 150001, Peoples R China

[3] Univ Montpellier, Lab Charles Coulomb L2C, CNRS, UMR 5221, F-34095 Montpellier, France

[4] Inst Univ France, 1 Rue Descartes, F-75231 Paris 05, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2025年 / 240卷

基金：

中国国家自然科学基金;

关键词：

Near-field radiative heat transfer; Thermal photons; Hexagonal boron nitride; Twist; Thermal regulator; HEAT-TRANSFER;

D O I：

10.1016/j.ijheatmasstransfer.2024.126645

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Near-field radiative heat transfer (RHT) can surpass Planck's blackbody limit by several orders of magnitude due to the tunneling effect of thermal photons. The ability to understand and regulate RHT is of great significance in contactless energy transfer. In this work, we construct a rotating system with a hexagonal boron nitride (h-BN) cylinder for actively regulating the RHT between two nanoparticles (NPs). The results show that when the two NPs are located directly above the cylinder, energy can be directionally transmitted along the cylindrical channel in the form of low-loss surface waves, which can significantly enhance RHT. In addition, we find that the RHT can be regulated by actively manipulating the excitation of cylindrical surface modes. When the rotation point is located in the middle of the line connecting the two NPs, the modulation contrast approaches five orders of magnitude, higher than that of cylinders made of other materials under the same conditions. When its diameter is slightly less than the distance between NPs, the h-BN cylinder shows excellent tunability in the heat exchange. The present work may offer a theoretical possibility for actively regulating and controlling near-field RHT between arbitrary objects based on cylindrical waveguides.

引用

页数：11

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