Filamentation of ultra-short TW-class lasers recently opened new perspectives in
atmospheric research. Laser filaments are self-sustained light structures of 0.1–1 mm in …

Multiphoton ionization (MPI) is a fundamental first step in high-energy laser-matter
interaction and is important for understanding the mechanism of plasma formation. With the …

We experimentally observed laser-induced remote high-voltage discharge triggering
between two needle electrodes with half-a-cm spacing. The discharge was initiated by a 744 …

We study the influence of the laser repetition rate on the generation of low-density channels
of air left in the path of femtosecond laser filament. At high repetition rates, we observe the …

A technique is presented to create uninterrupted long ultraviolet filaments in air using
appropriately structured transmission mesh. The mesh with different cell sizes was inserted …

The non-resonant heating of gases by laser irradiation and plasma formation has been
under investigation since the development of 100 megawatt peak power, Q-switched …

Filamentation of focused UV and IR femtosecond laser pulses and plasma channel
formation governed by variable wavefront distortions was experimentally and numerically …

The paper discusses the requirements for avalanche ionization in gas or gas mixtures
initiated by REMPI or femtosecond-laser pre-ionization. Numerical examples of …

Results are presented from a series of experimental and theoretical studies on creating
weakly ionized extended plasma channels in atmospheric air by 248-nm UV laser radiation …

The evolution of the electron energy distribution function in the plasma channel created in
air by a UV-laser pulse of femtosecond duration is studied. It is shown that such a channel …