Near-field radiative heat transfer with hyperbolic metamaterials

Publikationstyp
Thesis
Thesis Type
Doctoral Thesis
Publikationsdatum
2019
Sprache
English
Author
Lang, Slawa 
Advisor
Eich, Manfred 
Referee
Schuster, Christian 
Biehs, Svend-Age 
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2018-07-13
Institut
Optische und Elektronische Materialien E-12 
DOI
10.15480/882.2064
TORE-URI
http://hdl.handle.net/11420/2068
Lizenz
http://rightsstatements.org/vocab/InC/1.0/
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.
Schlagworte
thermal radiation
near-field radiative heat transfer
hyperbolic metamaterials (HMM)
penetration depth
transient plane source (TPS) technique
DDC Class
600: Technik
Projekt(e)
SFB 986: Teilprojekt C1 - Strukturierte Emitter für effiziente und effektive Thermophotovoltaik 
More Funding Information
Deutsche Forschungsgemeinschaft (DFG)