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Near-field radiative heat transfer with hyperbolic metamaterials
Citation Link: https://doi.org/10.15480/882.2064
Publikationstyp
Doctoral Thesis
Date Issued
2019
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2018-07-13
TORE-DOI
TORE-URI
Citation
Technische Universität Hamburg (2019)
Despite its general significance, Max Planck’s blackbody theory cannot explain the increase in radiative heat flux between closely spaced bodies, known as near-field radiative heat transfer. We experimentally demonstrate this effect by utilizing a new, dynamic measuring technique and show heat fluxes up to 16 times above the blackbody limit. We also reveal that thermal radiation inside hyperbolic metamaterials (HMMs) – extremely anisotropic nanostructures – is very strong and has properties significantly different from blackbody radiation. Finally, near-field heat flux between HMMs turns out to be very strong and its penetration into the HMMs is comparatively large.
Subjects
thermal radiation
near-field radiative heat transfer
hyperbolic metamaterials (HMM)
penetration depth
transient plane source (TPS) technique
DDC Class
600: Technik
More Funding Information
Deutsche Forschungsgemeinschaft (DFG)
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Lang, Slawa - Near-field radiative heat transfer with hyperbolic metamaterials.pdf
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