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Characterization of a laser filament-induced plasma in air at 10 kHz using optical emission spectroscopy
Malte C. Schroeder, Robin L\"oscher, Nikita Bibinov, Ihor Korolov, Peter Awakowicz, Thomas Mussenbrock, Clara J. Saraceno
https://arxiv.org/abs/2508.03309

Characterization of a laser filament-induced plasma in air at 10 kHz using optical emission spectroscopy
The increasing availability of high-power Yb-based ultrafast laser-amplifier systems has opened the possibility of air filamentation at high repetition rates >1 kHz. In this new regime, accumulation effects cannot be ruled out, therefore, characterizing the plasma parameters and afterglow plasma-chemical kinetics becomes increasingly relevant. In this work, we use optical emission spectroscopy to measure nanosecond dynamics of gas temperature and electron temperature, species-specific decay tim…