Engineered Electromagnetic Scattering with Active Metasurfaces
Abstract
Extension to existing grant #Response of Electronics, Systems and Swarms to Electromagnetic Interference,# ONR Award Number N000141912481.Proposal Project Director: Professor Steven Anlage.Co-PI: Thomas Antonsen,Abstract (approved for public release)Our objectiveis to develop approaches to manipulating the spatial and temporal degrees of freedom to control electromagnetic fields inside complex structures. Goals include the ability to strongly enhance (or diminish) the strength of electromagnetic fields at an arbitrary location in a complex scattering environment by means of wavefront shaping. Specifically, we will utilize Reconfigurable IntelligentMetasurfaces (RIM) supplied by Johns Hopkins University Applied Physics Lab (JHUAPL) to manipulate electromagnetic fields to investigate a series of counter-directed energy warfare (CDEW)-related questions. Specific goals include acquisition and training on the use of the JHUAPL nonlinear RIM in the University of Maryland lab, tests of Random Coupling Model statistics using RIM field scrambling techniques, frequency conversion and spectral housekeeping inside a complex scattering system by means of nonlinear RIM, wave focusing and following of moving nonlinear objects, use of a dynamic RIM to rapidly modify field concentration in real-time, and studyof the best location for RIM placement in a scattering environment for maximum impact CDEW applications. We will also perform a critical examination of a machine learning task utilizing our nonlinear RIM, and compare the results to more conventional approaches to solving the problem. The PI and co-PI will supervise two graduate students to carry out the experiments, parallel simulations, andtheoretical work to understand and codify the results. Collaborators include Drs. Joseph A. Miragliotta and David Shrekenhamer of JHUAPL, and Drs. Bisrat Addissie and Zachary Drikis of NRL.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 29, 2023
- Source ID
- N000142312507
Entities
People
- Steven M Anlage
Organizations
- Office of Naval Research
- United States Navy
- University of Maryland