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Influence of dispersion stretching of ultrashort UV laser pulse on the critical power of self-focusing
A. A. Ionin, D. V. Mokrousova, D. A. Piterimov +3
The critical power of self-focusing in the air for ultrashort UV laser pulses stretched due to dispersion from 90 up to 730 fs was experimentally measured. It was shown that the pu…
Self-focusing and plasma channels formation for non-axisymmetric optical schemes under different orientation of laser pulse linear polarization
A A Ionin, D V Mokrousova, L V Seleznev +3
Filamentation of linear polarized ultrashort laser pulses in non-axisymmetric optical schemes with preferential directions to the optical axis in dependence on the beam orientation…
Spectroscopy based on target luminescence caused by interaction with ultrashort UV laser pulses
A. A. Ionin, D. V. Mokrousova, L. V. Seleznev +3
We proposed remote spectroscopy approach consisted in luminescence light utilization. During interaction with different targets ultrashort UV laser pulse generates broadband spectr…
Effect of nonlinearity in the pass-through optics on femtosecond laser filament in air
Alexander A. Dergachev, Andrey A. Ionin, Valery P. Kandidov +6
An influence of pass-through optics on femtosecond laser pulse filamentation in ambient air is analyzed for the first time both experimentally and numerically. Propagation of high-…
Enhancement of ultrafast electron photoemission from metallic nano antennas excited by a femtosecond laser pulse
M. A. Gubko, W. Husinsky, A. A. Ionin +7
We have demonstrated for the first time that an array of nanoantennas (central nanotips inside sub-micron pits) on an aluminum surface, fabricated using a specific double-pulse fem…
Triggering and guiding electric discharge by a train of UV picosecond pulses combined with a long UV pulse
A. A. Ionin, S. I. Kudryashov, A. O. Levchenko +6
Non-self-sustained electric discharge and electric breakdown were triggered and guided by a train of picosecond UV pulses overlapped with a long free-running UV pulse of a hybrid T…