Thermoplasmonic and near-field heat transfer between metamaterials III
14:00 : Optical Resonator Modulated Super-Plankian Monochromatic Thermal Radiation in Near-field
Baoan Liu, Sheng Shen
Carnegie Mellon University (USA) We propose a general methodology to achieve the super-Planckian monochromatic thermal radiation by designing the emitter-absorber optical resonator. The monochromatism can thus be controlled by the resonance mode, rather than the material intrinsic properties. A general theory based on the quasinormal modes of the resonator is derived to qualitatively guide the design of the emitter-absorber resonator.
14:15 : Metamaterial-enhanced Near-field Thermophotovoltaic Conversion by Excitation of Magnetic Polariton
Yue Yang, Hao Wang, Liping Wang
Arizona State University (USA) We study a near-field thermophotovoltaic system made of an InGaSb cell and a tungsten grating metamaterial emitter, in which magnetic polariton is excited to spectrally enhance near-field radiative transfer. Fluctuational electrodynamics incorporated with scattering matrix method and rigorous coupled-wave analysis is used to exactly calculate the spectral heat flux. The preliminary results show improved conversion efficiency and almost doubled total electrical power output over that with plain tungsten emitters at a vacuum gap distance of 100 nm.
14:30 : Thermoplasmonic optimization of nanostructured metals
Adrien Lalisse (1),G. Tessier (1),G. Baffou (2),J. Plain (3)
(1)University Paris Descartes (France) , (2)Institut Fresnel (France) , (3)University of Technology of Troyes (France) We investigate new materials for plasmonic metal nanostructures, to serve both as near-field enhancers and heat nanosources. Numerical simulations highlight the influence of morphology and composition on the nanoparticles absorption and temperature.