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This article is cited in 15 scientific papers (total in 15 papers)
Interaction of laser radiation with matter. Laser plasma
Broadening and shift of emission lines in a plasma of filaments generated by a tightly focused femtosecond laser pulse in air
A. A. Il'inab, S. S. Golikab, K. A. Shmirkoab, A. Yu. Mayorab, D. Yu. Proschenkoabc, Yu. N. Kulchinab a Institute for Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok
b Far Eastern Federal University, Vladivostok
c Maritime State University named after G. I. Nevelskoi, Vladivostok
Abstract:
We study the broadening and shift of N I (λ = 746.8 nm) and O I (λ =777.4 nm) lines in a plasma of filaments generated by a tightly focused femtosecond laser pulse (0.9 mJ, 48 fs). It is shown that the dynamic Stark effect makes a major contribution to the broadening and shift of the N I line (λ =746.8 nm). It is found that amplified spontaneous emission of a regenerative amplifier and post-pulses break the LS coupling for the O I 3p 5P energy level, lead to the generation of side bands related to the Rabi splitting of levels and result in pulsed emission of the first positive system of N2.
Keywords:
filament, dynamic Stark effect, Rabi splitting, line broadening and shift.
Received: 29.08.2017 Revised: 12.10.2017
Citation:
A. A. Il'in, S. S. Golik, K. A. Shmirko, A. Yu. Mayor, D. Yu. Proschenko, Yu. N. Kulchin, “Broadening and shift of emission lines in a plasma of filaments generated by a tightly focused femtosecond laser pulse in air”, Kvantovaya Elektronika, 48:2 (2018), 149–156 [Quantum Electron., 48:2 (2018), 149–156]
Linking options:
https://www.mathnet.ru/eng/qe16764 https://www.mathnet.ru/eng/qe/v48/i2/p149
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Abstract page: | 430 | Full-text PDF : | 77 | References: | 32 | First page: | 18 |
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