Near-field radiative heat transfer between two parallel SiO2 plates with and without microcavities
Near-field radiative heat transfer between two parallel SiO2 plates with and without microcavities
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DOI：
10.1063/1.4905601
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发表时间：
2015-01-12
影响因子：
4
通讯作者：
Yamada, N.
中科院分区：
文献类型：
--
作者：
Ijiro, T.;Yamada, N.
近到远场的辐射热传递两个宏观SiO2板之间的微腔和没有观察到使用一个高度精确和准确的光学间隙测量方法。在300 K附近进行的实验测量了热传递作为1.0 μ m至50 μ m间隙间距的函数以及作为4.1 K至19.5 K之间温差的函数。间隙相关的热通量与理论预测非常吻合。此外，在板表面上的微腔的效果被清楚地观察到和显着增强的近场辐射传热之间的镀金微腔与窄的真空分离被证实。(C)2015 AIP Publishing LLC.
Near-to-far-field radiative heat transfer between two macroscopic SiO2 plates-with and without microcavities-was observed using a highly precise and accurate optical gap-measurement method. The experiments, conducted near 300 K, measured heat transfer as a function of gap separation from 1.0 mu m to 50 mu m and also as a function of temperature differences between 4.1 and 19.5 K. The gap-dependent heat flux was in excellent agreement with theoretical predictions. Furthermore, the effects of microcavities on the plate surfaces were clearly observed and significant enhancement of near-field radiative heat transfer was confirmed between gold-coated microcavities with narrow vacuum separation. (C) 2015 AIP Publishing LLC.