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Proceedings Paper

Anomalous broadening and shift of emission lines in filaments
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Paper Abstract

The temporal evolution of width and shift of N I 746.8 and O I 777.4 nm lines is investigated in filament plasma produced by tightly focused femtosecond laser pulse (0.9 mJ, 48 fs). Nitrogen line shift is determined by joint action of electron impact shift and far-off resonance AC Stark effect. Intensive (I ~ 1010 W/cm2 ) electric field of ASE and postpulses result in possible LS coupling break for O I 3p 5P level and generation of Rabi sidebands. The blue-shifted main femtosecond pulse and Rabi sideband cause the stimulated emission of N21+ system.

Paper Details

Date Published: 30 November 2017
PDF: 8 pages
Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104661N (30 November 2017); doi: 10.1117/12.2287585
Show Author Affiliations
A. A. Ilyin, Institute for Automation and Control Processes (Russian Federation)
Far Eastern Federal Univ. (Russian Federation)
S. S. Golik, Institute for Automation and Control Processes (Russian Federation)
Far Eastern Federal Univ. (Russian Federation)
K. A. Shmirko, Institute for Automation and Control Processes (Russian Federation)
Far Eastern Federal Univ. (Russian Federation)
A. Yu. Mayor, Institute for Automation and Control Processes (Russian Federation)
Far Eastern Federal Univ. (Russian Federation)
D. Yu. Proschenko, Far Eastern Federal Univ. (Russian Federation)
Maritime State Univ. named after G.I. Nevelskoi (Russian Federation)


Published in SPIE Proceedings Vol. 10466:
23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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