Modulation of near-field heat transfer between two gratings

Author(s): Svend-Age Biehs, Felipe S. S. Rosa, Philippe Ben-Abdallah
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Article: Appl. Phys. Lett. 98, 243102 (2011), American Institute of Physics
Keywords: diffraction gratings, heat transfer, near-field, maxwell-garnett
PACS: 44.10.+i, 42.79.Dj
Abstract:: We present a theoretical study of near-field heat transfer between two uniaxial anisotropic planar structures. We investigate how the distance and relative orientation (with respect to their optical axes) between the objects affect the heat flux. In particular, we show that by changing the angle between the optical axes it is possible in certain cases to modulate the net heat flux up to 90% at room temperature, and discuss possible applications of such a strong effect.
URL: http://www.condmat.uni-oldenburg.de/Biehs/pubs/p_modgrating2011.pdf (application/pdf)