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Proceedings Paper

Nonlinear ionization of pure atomic and molecular gases by intense UV femtosecond laser pulses
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Paper Abstract

Mechanisms of nonlinear absorption and ionization of pure atomic argon and molecular nitrogen gases by UV femtosecond laser pulses were studied using photogalvanic and photoacoustic techniques. The effect of the intermediate Rydberg resonance, its dynamic Stark perturbation and ponderomotive upshift of the first ionization potential of argon atoms and nitrogen molecules by the intense laser pulses has been revealed by observing an increase of a power slope of ion yield from three to four at increasing laser intensity.

Paper Details

Date Published: 17 April 2009
PDF: 5 pages
Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71311K (17 April 2009); doi: 10.1117/12.811109
Show Author Affiliations
Andrey A. Ionin, P.N. Lebedev Physical Institute (Russian Federation)
Sergey I. Kudryashov, P.N. Lebedev Physical Institute (Russian Federation)
Yurii N. Ponomarev, Institute of Atmospheric Optics (Russian Federation)
Leonid V. Seleznev, P.N. Lebedev Physical Institute (Russian Federation)
Dmitry V. Sinitsyn, P.N. Lebedev Physical Institute (Russian Federation)
Boris A. Tikhomirov, Institute of Atmospheric Optics (Russian Federation)
Alexander A. Tikhov, P.N. Lebedev Physical Institute (Russian Federation)
Vladimir D. Zvorykin, P.N. Lebedev Physical Institute (Russian Federation)


Published in SPIE Proceedings Vol. 7131:
XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Rui Vilar; Olinda Conde; Marta Fajardo; Luís O. Silva; Margarida Pires; Andrei Utkin, Editor(s)

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