Conjugate-impedance matched metamaterials for super-Planckian radiative heat transfer
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A4 Artikkeli konferenssijulkaisussa
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2016
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
Series
Metamaterials X, Proceedings of SPIE ; Volume 9883
Abstract
A problem of maximization of the radiative heat transfer (at a given wavelength) between a body and its environment is considered theoretically. It is shown that the spectral density of the radiative heat flux is maximized under the formulated conjugate impedance matching condition, in which case the spectral density of radiated power can exceed the black body limit, resulting in a super-Planckian heat exchange at characteristic distances significantly greater than the wavelength. It is demonstrated that the material parameters of the optimal emitters can be deduced from the known material parameters of the environment and represented by closed-form relations, thus, enabling a way for physical realization of such far-field super-Planckian emitters.Description
Keywords
black body, metamaterials, super-Planckian radiative heat transfer, thermal emission
Other note
Citation
Maslovski, S I, Simovski, C R & Tretyakov, S A 2016, Conjugate-impedance matched metamaterials for super-Planckian radiative heat transfer . in A D Boardman, N P Johnson, K Macdonald & E Ozbay (eds), Metamaterials X ., 98830O, Proceedings of SPIE, vol. 9883, SPIE, Metamaterials X, Brussels, Belgium, 04/04/2016 . https://doi.org/10.1117/12.2227735