Frequency conversion, “superluminal” propagation, and compression of a powerful microwave pulse in propagating ionization front
Yang Cao, Yu. P. Bliokh, V. Maksimov, J. G. Leopold, Ya. E. Krasik
Abstract
Frequency up-conversion (∼10%) and compression (almost twofold) of a powerful (≤250 MW) microwave pulse in the propagating ionization front produced by the pulse itself in a gas-filled waveguide, is investigated experimentally and analyzed theoretically. Pulse envelope reshaping and group velocity increase manifest themselves in a propagation of the pulse faster than in the empty waveguide. A simple one-dimensional mathematical model allows the adequate interpretation of the experimental results.
Topics & Concepts
MicrowavePulse (music)Envelope (radar)IonizationSuperluminal motionPhysicsElectromagnetic pulseFront velocityWaveguidePulse compressionOpticsComputational physicsGroup velocityUltrashort pulseAtomic physicsFront (military)LaserQuantum mechanicsRadarTelecommunicationsIonComputer scienceDetectorMeteorologyQuantum optics and atomic interactionsGyrotron and Vacuum Electronics ResearchPhotorefractive and Nonlinear Optics