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Surface Bloch waves mediated heat transfer between two photonic crystals
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View: Figures


Image of FIG. 1.
FIG. 1.

Structure consisting of plane layers made of absorbing materials coating deposited on semi-infinite transparent materials. These textured materials are separated by a vacuum gap and are maintained in nonequilibrium thermal situation at temperatures and , respectively.

Image of FIG. 2.
FIG. 2.

(a) Band structure of a quarter-wave infinite photonic crystal (, and , ) for TE waves. White zones are forbidden bands in which . The black straight line delimits the light cone in vacuum. (b) LDOS of evanescent modes at from the surface plotted in the plane for a quarter-wave photonic crystal with 5 periods and 15 periods (c). The white triangular zone which corresponds to propagative modes is not detailed.

Image of FIG. 3.
FIG. 3.

(a) Monochromatic nonradiative heat transfer coefficient for TE waves (at 300 K) between two photonic crystals (case I) made with 15 periods of unit cell with , and and (case II) between two quarter-wave photonic crystals made with 5 and 15 periods , respectively, and for a 100 nm separation distance. The dashed curve describes exchanges between two massive materials of dielectric constant at the same separation distance. Heat transfer coefficient in case I (b) and between two massive materials (c) vs the separation distance.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface Bloch waves mediated heat transfer between two photonic crystals