Details

Autor(en) / Beteiligte

• Rodriguez, Alejandro W
• Ilic, Ognjen
• Bermel, Peter
• Celanovic, Ivan
• Joannopoulos, John D
• Soljačić, Marin
• Johnson, Steven G

Titel

Frequency-selective near-field radiative heat transfer between photonic crystal slabs: a computational approach for arbitrary geometries and materials

Ist Teil von

• Physical review letters, 2011-09, Vol.107 (11), p.114302-114302, Article 114302

Ort / Verlag

United States

Erscheinungsjahr

2011

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We demonstrate the possibility of achieving enhanced frequency-selective near-field radiative heat transfer between patterned (photonic-crystal) slabs at designable frequencies and separations, exploiting a general numerical approach for computing heat transfer in arbitrary geometries and materials based on the finite-difference time-domain method. Our simulations reveal a tradeoff between selectivity and near-field enhancement as the slab-slab separation decreases, with the patterned heat transfer eventually reducing to the unpatterned result multiplied by a fill factor (described by a standard proximity approximation). We also find that heat transfer can be further enhanced at selective frequencies when the slabs are brought into a glide-symmetric configuration, a consequence of the degeneracies associated with the nonsymmorphic symmetry group.