Channeling an extended electrical breakdown of air by a laser beam is a long-standing challenge in applied laser science. Virtually all previously reported experiments on discharge channeling by femtosecond laser beams relied on the application of a single laser pulse and have been conducted with discharge gaps of less than one meter, in which case the direct ohmic heating of the laser-generated plasma by the applied DC electric field is the dominant channeling mechanism. We report a laboratory-scale demonstration of a channeling approach that makes use of concatenated plasma filaments produced by a sequence of multiple ultrashort laser pulses. Direct ohmic heating of the guiding channel is eliminated through the introduction of large tempo...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
International audienceWe report a drastic reduction of air resistivity following the passage of a se...
Abstract: Long ionized channels appear as a result of nonlinear propagation of femtosecond terawatt ...
When an ultrashort-terawatt laser pulse is propagating through the atmosphere, long filaments may de...
Summarization: Summary form only given. Several studies have shown recently that ultrashort infrared...
International audienceThe filament due to the self-guided propagation of an infrared femtosecond las...
International audienceLaser filamentation offers a promising way for the remote handling of large el...
The propagation of intense picosecond laser pulses in air in the presence of strong nonlinear self-a...
International audienceThe triggering and guiding of electric discharges produced in atmospheric air ...
Plasma channel generation (or filamentation) using ultraintense laser pulses in dielectric media has...
International audienceLightning research needs on-demand lightning strikes, because of the random ch...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
International audienceWe report a drastic reduction of air resistivity following the passage of a se...
Abstract: Long ionized channels appear as a result of nonlinear propagation of femtosecond terawatt ...
When an ultrashort-terawatt laser pulse is propagating through the atmosphere, long filaments may de...
Summarization: Summary form only given. Several studies have shown recently that ultrashort infrared...
International audienceThe filament due to the self-guided propagation of an infrared femtosecond las...
International audienceLaser filamentation offers a promising way for the remote handling of large el...
The propagation of intense picosecond laser pulses in air in the presence of strong nonlinear self-a...
International audienceThe triggering and guiding of electric discharges produced in atmospheric air ...
Plasma channel generation (or filamentation) using ultraintense laser pulses in dielectric media has...
International audienceLightning research needs on-demand lightning strikes, because of the random ch...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large curre...
International audienceWe report a drastic reduction of air resistivity following the passage of a se...