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- W2785486895 abstract "The super-Planckian features of radiative heat transfer in the near-field are known to depend strongly on both material and geometric properties. However, the relative importance and interplay of these two facets, and the degree to which they can be used to enhance heat transfer, remains an open question. Recently derived bounds through energy conservation suggest an enhancement factor (compared to blackbody) of $c^{2}|chi|^4/ (4 Imleft[chiright]^{2} omega^{2} d^{2})$ between extended structures; but neither geometries reaching such bounds, nor the predicted scaling with $chi$, have been reported. Here, using inverse design, we show that in two dimensions high loss metals such as tungsten can be structured to realize flux rates that come within $80%$ of the rate exhibited by an ideal pair of resonant lossless metals at selective frequencies for separations as small as two hundredths of the design wavelength. We also observe that the scaling of the resonant enhancement factor with respect to $chi$ follows the above proportionality." @default.
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- W2785486895 date "2018-02-15" @default.
- W2785486895 modified "2023-10-14" @default.
- W2785486895 title "Frequency-Selective Near-Field Radiative Heat Transfer Enhancement in Two Dimensions via Inverse Design" @default.
- W2785486895 hasPublicationYear "2018" @default.
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