Dependence of the luminescence of molecular nitrogen in the filamentation region on the energy and duration of femtosecond radiation

P. A. Babushkin; V. K. Oshlakov; A. N. Iglakova

doi:10.1117/12.3005393

2 November 2023 Dependence of the luminescence of molecular nitrogen in the filamentation region on the energy and duration of femtosecond radiation

P. A. Babushkin, V. K. Oshlakov, A. N. Iglakova

Author Affiliations +

Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 129200E (2023) https://doi.org/10.1117/12.3005393
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation

Abstract

The plasma of the filamentation region of femtosecond radiation is an intra-atmospheric source of radiation that can be used in the problem of remote sensing. The glow of the plasma of the filamentation region in the atmosphere is due to the emission at the transitions of the first negative (B₂Σ_u⁺→X₂Σ_g⁺) and the second positive system (C₃П_u→B₃П_g) of molecular nitrogen. By varying the energy and duration of the femtosecond radiation, it is possible to change the luminescence intensity of molecular nitrogen at the indicated transitions The report presents the results of a study of a relation of an initial energy and pulse duration with an intensity of a molecular nitrogen. It is shown that for certain values of the pulse duration, the change in the intensity of the luminescence of molecular nitrogen at wavelengths of 315.9, 337.1, and 357.7 nm of the second positive nitrogen system weakly depends on the initial energy.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

P. A. Babushkin, V. K. Oshlakov, and A. N. Iglakova "Dependence of the luminescence of molecular nitrogen in the filamentation region on the energy and duration of femtosecond radiation", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 129200E (2 November 2023); https://doi.org/10.1117/12.3005393

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