Electromagnetics

Objective
This portfolio supports research in electromagnetics (EM) to produce conceptual descriptions of electromagnetic properties of novel materials/composites (such as photonic band gap media, negative index media, Parity-Time symmetry media, etc.) and the simulation of their uses in various operational settings. Basic research to evaluate methods to recognize (the inverse scattering problem) and track targets (including Improvised Explosive Devices) and identify suitable wideband radar waveforms (precursors or Airy beams for example) to penetrate foliage, clouds, buildings, the ionosphere, or other dispersive/random/turbulent media and design transmitters to produce such pulses is also supported. Research which develops the mathematical underpinning for computational electromagnetic simulation codes (both frequency domain and time domain) that are rapid and whose claims of accuracy are accompanied by rigorous error estimates/controls is also supported. In the area of nonlinear Maxwell’s equations (commonly called nonlinear optics--NLO), research which pursues descriptions of nonlinear EM phenomena such as the propagation of ultrashort laser pulses through air, clouds, etc and any possible exploitation of these pulses is supported. Such mathematical descriptions are anticipated to be a coupled system of nonlinear partial differential equations. Basic research in other nonlinear EM phenomena include the dynamics of the EM field within solid state laser cavities and fiber lasers, the propagation of light through various nonlinear crystals (including graphene), as well as other nonlinear optical media. All such modeling/simulation research is complementary to the experimental/empirical portfolios within the Physics & Electronics Directorate. Another area of interest is the description and understanding of any chaos in circuitry which can possibly be created by exposure to suitable EM fields.

Solicitation
BAA-AFOSR-2013-0001, Page 16/17

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Program Overview
AFOSR Spring Review 2013 Presentation by Dr. Arje Nachman
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Contact Information
Dr. Arje Nachman
AFOSR/RTB
Tele: (703) 696-8427
DSN: 426-8427
FAX: (703) 696-8450
Email: Electromagnetics@afosr.af.mil