Two important problems in current photonics concern the optimal choice of materials for coupling light into surface plasmons, and for use in high absorbing thin layers for photovoltaic cells. We describe recent work on the use of zirconium nitride and titanium nitride as alternatives to silver in gold in coupling light from free space into surfa...
Creator:
McPhedran, Ross C. (University of Sydney)
Created:
2017-03-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We show how a slightly lossy superlens of thickness d cloakscollections of polarizable line dipoles or point dipoles or finite energy dipole sources that liewithin a distance of d/2 of the lens. In the limit as the lossin the lens tends to zero, these become essentially invisiblefrom the outside through the cancelling effects of localized resona...
Creator:
Milton, Graeme Walter (The University of Utah)
Created:
2006-10-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Metamaterials, which are engineered composite media with unconventional electromagnetic and optical properties, can be formed byembedding sub-wavelength inclusions as artificial molecules in host media in order to exhibit specific desired responsefunctions. They can have exciting characteristics in manipulating and processing RF, microwave, IR a...
Creator:
Engheta, Nader (University of Pennsylvania)
Created:
2006-10-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We outline recent achievements in creating structural composite materials with controlled electromagnetic properties, as an integral part of a multifunctional material system. The electromagnetic response is tailored by incorporating within the material small amounts of suitably configured, periodically distributed, electric conductors to produc...
Creator:
Nemat-Nasser, Sia (University of California, San Diego)
Created:
2006-10-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We will review the analytic and computational foundations of Green's function-based methods for electromagnetic scattering, including high order integral representations, fast solvers, and quasi-periodicity. We will then discuss the development of easy-to-use numerical simulation environments, and present some applications to photonic crystals, ...
Creator:
Greengard, Leslie F. (New York University)
Created:
2006-10-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Thermoacoustic tomography (TCT) is a hybrid imaging technique that has beenproposed as an alternative to xray mammography. Ideally, electromagnetic (EM)energy is deposited into the breast tissue uniformly in space, but impulsivelyin time. This heats the tissue causing thermal expansion. Cancerous massesabsorb more energy than healthy tissue, cre...
Creator:
Patch, Sarah K. (University of Wisconsin, Milwaukee)
Created:
2006-01-11
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.