scholarly journals Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

2017 ◽  
Vol 72 (2) ◽  
pp. 115-127 ◽  
Author(s):  
Svend-Age Biehs ◽  
Philippe Ben-Abdallah
Keyword(s):  
Heat Transfer ◽  
Radiative Heat ◽  
Effective Medium Theory ◽  
Near Field ◽  
Single Layer ◽  
Exact Results ◽  
Medium Theory ◽  
Hyperbolic Metamaterials ◽  
Surface Modes ◽  
The Impact

AbstractWe review the near-field radiative heat flux between hyperbolic materials focusing on multilayer hyperbolic meta-materials. We discuss the formation of the hyperbolic bands, the impact of ordering of the multilayer slabs, as well as the impact of the first single layer on the heat transfer. Furthermore, we compare the contribution of surface modes to that of hyperbolic modes. Finally, we also compare the exact results with predictions from effective medium theory.

Application Conditions of Effective Medium Theory in Near-Field Radiative Heat Transfer Between Multilayered Metamaterials

2014 ◽  
Vol 136 (9) ◽  
Author(s):  
X. L. Liu ◽  
T. J. Bright ◽  
Z. M. Zhang
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Effective Medium Theory ◽  
Near Field ◽  
Effective Medium ◽  
Medium Theory ◽  
Metal Metal ◽  
Doped Silicon ◽  
Silicon And Germanium

This work addresses the validity of the local effective medium theory (EMT) in predicting the near-field radiative heat transfer between multilayered metamaterials, separated by a vacuum gap. Doped silicon and germanium are used to form the metallodielectric superlattice. Different configurations are considered by setting the layers adjacent to the vacuum spacer as metal–metal (MM), metal–dielectric (MD), or dielectric–dielectric (DD) (where M refers to metallic doped silicon and D refers to dielectric germanium). The calculation is based on fluctuational electrodynamics using the Green's function formulation. The cutoff wave vectors for surface plasmon polaritons (SPPs) and hyperbolic modes are evaluated. Combining the Bloch theory with the cutoff wave vector, the application condition of EMT in predicting near-field radiative heat transfer is presented quantitatively and is verified by exact calculations based on the multilayer formulation.

Near-Field Radiative Heat Transfer Between Graphene/Silicon Carbide Multilayers

2018 ◽  
Vol 140 (7) ◽  
Author(s):  
Liang-Ying Zhong ◽  
Qi-Mei Zhao ◽  
Tong-Biao Wang ◽  
Tian-Bao Yu ◽  
Qing-Hua Liao ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Silicon Carbide ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Chemical Potential ◽  
Effective Medium Theory ◽  
Near Field ◽  
Transfer Characteristic ◽  
Transfer Coefficients ◽  
Medium Theory

Hyperbolic metamaterial (HMM) alternately stacked by graphene and silicon carbide (SiC) is proposed to theoretically study near-field radiative heat transfer. Heat transfer coefficients (HTCs) are calculated using the effective medium theory (EMT). We observe that HMMs can exhibit better heat transfer characteristic than graphene-covered SiC bulks when appropriate SiC thickness and chemical potentials of graphene are selected. Transfer matrix method (TMM) is also employed to calculate HTC between HMMs with thicker SiC, given the invalidity of EMT in this case. We deduce that with increasing SiC thickness, HTC first increases rapidly and then decreases slowly when it reaches maximum value. HTC is high for graphene with small chemical potential. Results may benefit applications of thermophotovoltaic devices.

Three-Body Heat Transfer Between Anisotropic Magneto-Dielectric Hyperbolic Metamaterials

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Jinlin Song ◽  
Lu Lu ◽  
Qiang Cheng ◽  
Zixue Luo
Keyword(s):  
Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Body System ◽  
Optimum Thickness ◽  
Hyperbolic Metamaterials ◽  
Surface Phonon Polaritons ◽  
Three Body ◽  
Intermediate Slab ◽  
Body Heat

We investigate the near-field (NF) radiative heat transfer of the three-body system consisting of anisotropic magnetodielectric hyperbolic metamaterials (AMDHMs), which can support coupled surface phonon polaritons (SPhPs) and hyperbolic modes for both p and s polarizations. We numerically demonstrate that the NF heat transfer between two AMDHMs bodies can be further enhanced by inserting an AMDHMs slab. Due to the loss in AMDHMs, there exists an optimum thickness of the intermediate slab to maximize the NF heat flux flowing to the receiver for a fixed gap distance. Results obtained from this work will facilitate investigations of the NF heat transfer involving magnetic hyperbolic metamaterials.

Near-field radiative heat transfer between graphene-covered hyperbolic metamaterials

2018 ◽  
Vol 57 (4) ◽  
pp. 045001 ◽  
Author(s):  
Xiao-Juan Hong ◽  
Jian-Wen Li ◽  
Tong-Biao Wang ◽  
De-Jian Zhang ◽  
Wen-Xing Liu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Hyperbolic Metamaterials

Contribution of terahertz waves to near-field radiative heat transfer between graphene-based hyperbolic metamaterials

2018 ◽  
Vol 27 (9) ◽  
pp. 094401 ◽  
Author(s):  
Qi-Mei Zhao ◽  
Tong-Biao Wang ◽  
De-Jian Zhang ◽  
Wen-Xing Liu ◽  
Tian-Bao Yu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Terahertz Waves ◽  
Hyperbolic Metamaterials

Magnetic-field control of near-field radiative heat transfer between graphene-based hyperbolic metamaterials

2020 ◽  
Vol 117 (16) ◽  
pp. 163901
Author(s):  
Bo Zhang ◽  
Jinlin Song ◽  
Lu Lu ◽  
Bowen Li ◽  
Kun Zhou ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Hyperbolic Metamaterials ◽  
Field Control

Near-Field Radiative Heat Transfer under Temperature Gradients and Conductive Transfer

2017 ◽  
Vol 72 (2) ◽  
pp. 141-149
Author(s):  
Weiliang Jin ◽  
Riccardo Messina ◽  
Alejandro W. Rodriguez
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Current Method ◽  
Temperature Gradients ◽  
Large Temperature ◽  
Analytical Formulas ◽  
Vacuum Gaps ◽  
The Impact

AbstractWe describe a recently developed formulation of coupled conductive and radiative heat transfer (RHT) between objects separated by nanometric, vacuum gaps. Our results rely on analytical formulas of RHT between planar slabs (based on the scattering-matrix method) as well as a general formulation of RHT between arbitrarily shaped bodies (based on the fluctuating–volume current method), which fully captures the existence of temperature inhomogeneities. In particular, the impact of RHT on conduction, and vice versa, is obtained via self-consistent solutions of the Fourier heat equation and Maxwell’s equations. We show that in materials with low thermal conductivities (e.g. zinc oxides and glasses), the interplay of conduction and RHT can strongly modify heat exchange, exemplified for instance by the presence of large temperature gradients and saturating flux rates at short (nanometric) distances. More generally, we show that the ability to tailor the temperature distribution of an object can modify the behaviour of RHT with respect to gap separations, e.g. qualitatively changing the asymptotic scaling at short separations from quadratic to linear or logarithmic. Our results could be relevant to the interpretation of both past and future experimental measurements of RHT at nanometric distances.

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