Strong Near-Field Enhancement of Radiative Heat Transfer between Metallic Surfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F12%3A00385282" target="_blank" >RIV/68081731:_____/12:00385282 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevLett.109.224302" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.109.224302</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.109.224302" target="_blank" >10.1103/PhysRevLett.109.224302</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strong Near-Field Enhancement of Radiative Heat Transfer between Metallic Surfaces

Popis výsledku v původním jazyce

Near-field heat transfer across a gap between plane-parallel tungsten layers in vacuo was studied experimentally with the temperature of the cold sample near 5 K and the temperature of the hot sample in the range 10-40 K as a function of the gap size d.At gaps smaller than one-third of the peak wavelength lambda(m) given by Wien's displacement law, the near-field effect was observed. In comparison with blackbody radiation, hundred times higher values of heat flux were achieved at d approximate to 1 mum. Heat flux normalized to the radiative power transferred between black surfaces showed scaling (lambda(m)/d)(n), where n approximate to 2.6. This Letter describes the results of experiment and a comparison with present theory over 4 orders of magnitudeof heat flux.

Název v anglickém jazyce

Strong Near-Field Enhancement of Radiative Heat Transfer between Metallic Surfaces

Popis výsledku anglicky

Near-field heat transfer across a gap between plane-parallel tungsten layers in vacuo was studied experimentally with the temperature of the cold sample near 5 K and the temperature of the hot sample in the range 10-40 K as a function of the gap size d.At gaps smaller than one-third of the peak wavelength lambda(m) given by Wien's displacement law, the near-field effect was observed. In comparison with blackbody radiation, hundred times higher values of heat flux were achieved at d approximate to 1 mum. Heat flux normalized to the radiative power transferred between black surfaces showed scaling (lambda(m)/d)(n), where n approximate to 2.6. This Letter describes the results of experiment and a comparison with present theory over 4 orders of magnitudeof heat flux.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

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Svazek periodika

109

Číslo periodika v rámci svazku

NOV 27

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

"224302:1"-"5"

Kód UT WoS článku

000311546600012

EID výsledku v databázi Scopus

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