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Mechanical and Civil Engineering Seminar

Thursday, April 7, 2016
11:00am to 12:00pm
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Gates-Thomas 135
"Recent Theoretical and Experimental Progress on Near-Field Thermal Radiation"
Zhuomin Zhang, Professor, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology,

Near-field thermal radiation holds promise for high-throughput thermophotovoltaic devices, nanomanufacturing, thermal imaging, local heat removal, and vacuum thermal rectifiers, especially when the vacuum gap separating the structures is reduced to submicron distances. In addition to bulk materials that support surface plasmon polaritons or surface phonon polaritons, various micro/nanostructured materials have been considered for enhancing the radiative heat flux, such as doped silicon nanowires and nanoholes, carbon nanotubes, multilayers, gratings, and graphene sheets. This presentation will summarize some of our recent theoretical studies on photon tunneling in nanostructures considering metameterials, metasurfaces, and plasmonic graphene sheets. Recent measurements of near-field thermal radiation between 10 mm x 10 mm doped silicon plates separated at distances below 500 nm will also be presented.

 

For more information, please contact Sonya Lincoln by phone at 626-395-3385 or by email at [email protected].