Effect of an energy reservoir on the atmospheric propagation of laser-plasma filaments.

摘要: The ability to select and stabilize a single filament during propagation of an ultrashort, high-intensity laser pulse in air makes it possible examine the longitudinal structure plasma channel left its wake. We present first detailed measurements numerical 3-D simulations density variation laser-plasma after passes through iris that blocks surrounding energy reservoir. Since no compensation is available from background energy, terminated few centimeters. For this experiment, indicate by defocusing ionization loss, which reduces power below effective self-focusing power. With blockage, length over meters was observed.