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Controlling thermal emission of phonon by magnetic metasurfaces

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arxiv 1702.04301 v1 pith:YQPSMLVH submitted 2017-02-11 physics.class-ph cond-mat.mtrl-sciphysics.optics

Controlling thermal emission of phonon by magnetic metasurfaces

classification physics.class-ph cond-mat.mtrl-sciphysics.optics
keywords phononthermalemissionmetasurfacemagneticmoderesonancewavelength
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Our experiment shows that the thermal emission of phonon can be controlled by magnetic resonance (MR) mode in a metasurface (MTS). Through changing the structural parameter of metasurface, the MR wavelength can be tuned to the phonon resonance wavelength. This introduces a strong coupling between phonon and MR, which results in an anticrossing phonon-plasmons mode. In the process, we can manipulate the polarization and angular radiation of thermal emission of phonon. Such metasurface provides a new kind of thermal emission structures for various thermal management applications.

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