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Schematic of near-field radiation between two 1020 cm−3 n-type doped SiNW arrays at temperature T 1 = 400 K and T 2 = 300 K separated by a vacuum gap of width d.
Total heat flux between the SiNW arrays as a function of vacuum gap for different filling fractions. The heat flux is normalized with respect to that between two Si plates at the same doping level. The heat flux between SiC nanowires normalized with respect to bulk SiC is also plotted for f = 0.5.
Spectral heat flux between the SiNW arrays for different filling fractions at a vacuum gap d = 100 nm.
Contour plot of at d = 100 nm with respect to and ω for (a) f = 0.9 and (b) f = 0.75. The dashed curves represent the two branches of dispersion curves of coupled surface plasmon polaritons inside the vacuum gap.
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