No IDC DURIP Microwave Source for Coherent Perfect Absorption
Abstract
Publicly Releasable Project Summary/AbstractIt is of concern to the DoD to direct intense electromagnetic energy to specific susceptible targets located inside complex enclosures such as buildings, aircraft, ships, vehicles, computers, engines, etc. It is also of concern to protect DoD assets from such aggression. A number of theoretical proposals have been put forward in the open literature about how electromagnetic energy can be efficiently, skillfully, or elegantly, delivered to a target in a complex setting (aka coherent microwave energy delivery). We wish to assess experimentally new opportunities and approaches to delivering electromagnetic energy to a target at an unknown location inside a complex enclosure. Of particular interest is the case of Coherent Perfect Absorption (CPA), in which all of the energy injected into a system is absorbed inside, with no energy reflected or transmitted. At this point it is unclear if more than 2 sources of radiation can be combined coherently to create the conditions for CPA in an arbitrary complex system. Our objective is to demonstrate CPA with 3 independent microwave sources in order to demonstrate that it can be achieved with an arbitrary number of sources. This system is also useful for performing #spectral housekeeping# in which undesired signals at a sensitive frequency can be moved to other frequencies where they will cause little damage. These demonstrations require state-of-the-art microwave equipment currently un-available to the PI. The DURIP funding will be used to establish a system / facility that can demonstrate the generality of CPA to an arbitrary number of sources.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 24, 2025
- Source ID
- N000142512140
Entities
People
- Steven M Anlage
Organizations
- Office of Naval Research
- United States Navy
- University of Maryland