title: Nonlinear time reversal in a wave chaotic system.
abstract: Exploiting the time-reversal invariance and reciprocal properties of the lossless wave equation enables elegantly simple solutions to complex wave-scattering problems and is embodied in the time-reversal mirror. Here we demonstrate the implementation of an electromagnetic time-reversal mirror in a wave chaotic system containing a discrete nonlinearity. We demonstrate that the time-reversed nonlinear excitations reconstruct exclusively upon the source of the nonlinearity. As an example of its utility, we demonstrate a new form of secure communication and point out other applications.
authors: Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA.
authors: Matthew
authors: M
authors: Frazier
authors: Biniyam
authors: B
authors: Taddese
authors: Thomas
authors: T
authors: Antonsen
authors: Steven M
authors: SM
authors: Anlage