Thursday, March 1, 2018 - 11:30am - 12:20pm
Robert Lipton (Louisiana State University)
We examine electric and magnetic fields inside metamaterials made from sub wavelength high contrast media. We introduce an analytic representation theory for fields inside optical metamaterials based on the spectra of Neumann Poincare operators. We apply this framework to construct microstructured media for controlling the direction of information propagation across different frequency bands.
Thursday, March 1, 2018 - 10:00am - 10:50am
Graeme Milton (The University of Utah)
If one seeks a two-phase conducting structure that is optimal for guiding a maximum amount of current in a desired direction, then the answer seems intuitively obvious. Just put the high conducting phase as layers or wires in the poor conducting phase. This was proved rigorously by Raitum (1978,1993). The analogous question for elasticity is easily posed: for a given prescribed average strain what range of values can the average stress take as the microgeometry varies over all configurations?
Wednesday, March 15, 2017 - 3:15pm - 4:05pm
Evgeniy Narimanov (Purdue University)
Photonic hypercrystals represent a new class of artificial optical media. These hyperbolic metamaterials, with periodic spatial variation of dielectric permittivity on a subwavelength scale, combine the features of optical metamaterials and photonic crystals.
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