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This article is cited in 3 scientific papers (total in 3 papers)
Interaction of laser radiation with matter. Laser plasma
Study of spectral and temporal parameters of superradiance on molecular nitrogen ions in air filament
I. A. Zyatikov, N. G. Ivanov, V. F. Losev, V. E. Prokop'ev Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk
Abstract:
We report the results of a high temporal resolution study on the formation of superradiance (SR) in plasma on the first negative system of molecular nitrogen ions in plasma of an air filament. The filament is formed by a femtosecond laser pulse with a wavelength of λ = 950 nm. For the first time, the actual SR pulse duration at λ = 428 nm is measured, which constitutes 1.15 ps (FWHM). According to measurements of a spectral width equal to 0.26 nm, this pulse duration is close to transform-limited (1 ps). It is shown that there is a delay by 6 ps in the SR pulse maximum relative to the pump.
Keywords:
filament, population inversion, superradiance, femtosecond duration, laser pulse, spectrum, molecule, ions.
Received: 21.05.2019 Revised: 17.07.2019
Citation:
I. A. Zyatikov, N. G. Ivanov, V. F. Losev, V. E. Prokop'ev, “Study of spectral and temporal parameters of superradiance on molecular nitrogen ions in air filament”, Kvantovaya Elektronika, 49:10 (2019), 947–950 [Quantum Electron., 49:10 (2019), 947–950]
Linking options:
https://www.mathnet.ru/eng/qe17131 https://www.mathnet.ru/eng/qe/v49/i10/p947
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