Izvestiya of Saratov University.

Physics

ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

For citation:

Plastun I. L., Derbov V. L., Trofimov A. V. Resonant Self-Action and Non-Stationary Coherent Transients in Frequency-Modulated CW Laser Beams. Izvestiya of Saratov University. Physics , 2008, vol. 8, iss. 1, pp. 59-62. DOI: 10.18500/1817-3020-2008-8-1-59-62

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Published online: 
25.06.2008
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Language: 
Russian
Heading: 
Physics
Article type: 
Article
UDC: 
535.345.1
DOI: 
10.18500/1817-3020-2008-8-1-59-62

Resonant Self-Action and Non-Stationary Coherent Transients in Frequency-Modulated CW Laser Beams

Autors: 
Plastun Inna L'vovna, Yuri Gagarin State Technical University of Saratov
Derbov Vladimir Leonardovich , Saratov State University
Trofimov A. V., Yuri Gagarin State Technical University of Saratov
Abstract: 

Periodical modulation of frequency, typical for spectroscopic purposes, is numerically modelled in transversely limited, propagating through a saturable two-level absorber cw laser beams. At modulation periods comparable with the atomic relaxation times the time and frequency dependence of the output intensity exhibits the manifestations of delayed medium response, including time-dependent lens and aperture effects that may be of importance in spectroscopy. Simultaneous manifestation and interaction of resonant self-action and non-stationary transients are analyzed in present work.

Key words: 
laser beam
resonance self-actuation
non-stationary transients
Reference: 
  1. Javan A., Kelley P. Possibility of self-focusing due to intensity dependent anomalous dispersion // IEEE J. Quant. Elec tron. 1966. Vol.2, №9. P.470-473.
  2. Bjorkholm J.C., Ashkin A. CW self-focusing and self trapping of light in sodium vapor // Phys. Rev. Lett. 1974. Vol.32. P. 129-132.
  3. Dowell M.L., Hart R.C., Gallagher A., Cooper J. Self focused light propagation in fully saturable medium: experiment//Phys. Rev. A. 1996. Vol.53, №3. P.1775-1781.
  4. Базаров Е.Н., Герасимов ГА., Губин В.П., Старостин НИ., Фомин ВВ. Динамическая самофокусировка гауссова светового пучка при насыщении неоднородно-уширенной линии поглощения // Квантова электроника. 1990. Т.17, №2. С.207-210.
  5. Derbov V.L., Plastun I.L., Serov V.V., Trofimov A.V. Influence of the resonant self-action and nonstationary coherent effects on the characteristics of a frequency-modulated laser beam//Proc. SPIE. 2007. Vol.6537. P.125-132.
  6. Шен И.Р. Принцип нелинейно оптики. М.: Наука, 1989.
  7. Melnikov L.A., Derbov V.L., Veshneva I.V., Konukhov A.I. Numerical studies of beam and pulse propagation in lasers and nonlinear media: transverse pattern dynamics and nonparaxial effects // Computers Math. Applic. 1997. Vol.34, №7/8. P.881-909
Received: 
21.01.2008
Accepted: 
12.05.2008
Published: 
25.06.2008
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