Abstract
An identification is made of twenty five elements whose resonance lines overlap the emission lines of high-power pulsed ultraviolet gas lasers or lie in the immediate vicinity of them, so that the mechanism laser ionization based on resonance saturation (LIBORS) can be used to ionize the vapor of these elements. Resonance transitions of atoms and ions excited by the same laser (by krypton fluoride and xenon fluoride lasers, respectively) are observed for tantalum and uranium. It ishas been suggested that these elements may be used as “catalysts” for “ catalytic” resonance ionization (CATRION) of dense multicomponent gas mixtures. Experiments have been carried out to study the krypton fluoride laser irradiation of expanding vapor clouds of different elemental composition, created by the evaporation of targets with a ruby laser. Photographs obtained with an image converter, measurements of the refractive index gradient from the deflection of the laser beam, as well as probe and spectroscopic measurements indicate that the clouds undergo photoresonant ionization if they contain tantalum vapor but that the laser radiation has no influence otherwise.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. B. Lucatorto and T. J. McIlrath, Phys. Rev. Lett. 7, 280 (1976).
R. M. Measures and P. G. Cardinal, Phys Rev. A 23, 804 (1981).
V. A. Kas’yanov and A. N. Starostin, in Plasma Chemistry [in Russian], Énergoatomizdat, Moscow 1990, p. 67.
K. V. Bieg, G. C. Tisone, T. R. Lokner et al., Proceedings of the Eighth International Conference on High-Power Particle Beams, Novosibirsk, 1990, Vol. 2 (World Scientific), p. 933.
D. V. Gaidarenko and A. G. Leonov, Laser Phys. 2, 901 (1992).
H. Yoshida, R. Tamaki, and H. Ninomiya, Opt. Commun. 102, 461 1993.
B. A. Knyazev, P. I. Melnikov, and H. Bluhm, Preprint No. 94-8, Budker Institute of Nuclear Physics, Novosibirsk (1994).
I. I. Sobelman, L. A. Vainshtein, and E. A. Yukov, Excitation of Atoms and Broadening of Spectral Lines (Springer-Verlag, Berlin, 1981) [Russ. original, Nauka, Moscow, 1979].
V. M. Akulin and N. V. Karlov, Intense Resonance Interactions in Quantum Electronics [in Russian], Nauka, Moscow (1987).
B. A. Knyazev, S. V. Lebedev, and K. I. Mekler, Zh. Tekh. Fiz. 56, 1319 (1986) [Sov. Phys. Tech. Phys. 31, 773 (1986)].
I. M. Bushujev, A. A. Doroshkin, A. A. Ivanov et al., Proc. SPIE 2619, 216 (1995).
S. I. Anisimov, Yu. A. Imas, G. S. Romanov, and Yu. V. Khodyko, Action of High-Power Radiation on Metals [in Russian], Nauka, Moscow (1970).
Yu. P. Raizer, Physics of Gas Discharges [in Russian], Nauka, Moscow (1987).
B. A. Knyazev, P. I. Melnikov, A. A. Doroshkin et al., Proceedings of the 11th International Conference on High-Power Particle Beams, Prague, 1996, Vol. 2, p. 1195.
S. Fraga and J. Muszyńska, in Physical Sciences Data 8. Atoms in External Fields (Elsevier, 1981), p. 53.
Author information
Authors and Affiliations
Additional information
Pis’ma Zh. Tekh. Fiz. 23, 24–32 (May 12, 1997)
Rights and permissions
About this article
Cite this article
Knyazev, B.A., Mel’nikov, P.I., Blyum, G. et al. Photoresonant ionization of gaseous media by excimer laser radiation. Tech. Phys. Lett. 23, 343–346 (1997). https://doi.org/10.1134/1.1261864
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1261864