Revisiting the Surface Impedance and Effective Medium Models Applied to Near‐Field Radiative Heat Transfer

2020 ◽  
Vol 257 (5) ◽  
pp. 1900498 ◽  
Author(s):  
Jaime E. Pérez-Rodríguez ◽  
Giuseppe Pirruccio ◽  
Raul Esquivel-Sirvent
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Surface Impedance ◽  
Radiative Heat ◽  
Near Field ◽  
Effective Medium ◽  
Effective Medium Models

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.

Cooling scheme of black phosphorus-based structures via near-field radiative heat transfer

2021 ◽  
Vol 263 ◽  
pp. 107543
Author(s):  
Gao-Feng Ju ◽  
Tong-Biao Wang ◽  
De-Jian Zhang ◽  
Wen-Xing Liu ◽  
Tian-Bao Yu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Near Field ◽  
Black Phosphorus
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