Abstract
Results from experiments with a TEA CO2 laser with an unstable cavity and a power of 107 W are presented. Laser radiation was focused by a lens with a focal length of 100 or 150 mm in air free of dust (grains larger than 0.1 µm were filtered out). The power and energy of radiation scattered within a central cone of an annular laser beam was recorded. The dependences of the threshold (for scattering) laser power and the scattered power on pressure were determined. The angular divergence of the collimated scattered beam was found to be 3.9 mrad, which was close to the divergence of the laser beam (2.5 mrad). The amplification of the scattered radiation pulse was performed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Young, M. Hercher, and C.-Y. Wu, J. Appl. Phys. 37, 4938 (1966).
V. V. Korobkin and A. J. Alcock, Phys. Rev. Lett. 21, 1433 (1968).
R. G. Tomlinson, IEEE J. Quantum Electron. QE-5, 591 (1969).
L. C. Johnson and T. K. Chu, Phys. Rev. Lett. 32, 517 (1974).
D. R. Cohn, G. J. Raff, R. L. Brooks, et al., Phys. Lett. A 49A, 95 (1974).
A. J. Alcock, C. DeMichelis, V. V. Korobkin, et al., Appl. Phys. Lett. 14(5), 145 (1969).
A. J. Alcock, C. DeMichelis, and M. C. Richardson, IEEE J. Quantum Electron. QE-6, 622 (1970).
J. S. Bakos, I. B. Foldes, and Z. Sorlei, J. Appl. Phys. 52, 627 (1981).
M. Luochesi, F. Cornolti, A. Giulietti, et al., Nuovo Cimento Soc. Ital. Fis. B 82B(1), 111 (1984).
N. Ahmad, B. C. Gale, and M. H. Key, J. Phys. B 2, 403 (1969).
G. A. Askar’yan and M. A. Mukhamadzhanov, Pis’ma Zh. Éksp. Teor. Fiz. 33, 48 (1981) [JETP Lett. 33, 44 (1981)].
D. Giulietti, Opt. Commun. 68(6), 399 (1988).
I. A. Bufetov, G. A. Bufetova, and V. B. Fedorov, Kvantovaya Élektron. (Moscow) 21, 1177 (1994).
C. C. Wang and L. I. Davis, Phys. Rev. Lett. 26, 822 (1971).
Yu. D. Kopytin, Yu. M. Sorokin, A. M. Skripkin, et al., Optical Discharges in Aerosols (Nauka, Novosibirsk, 1990).
M. Autric, J. P. Caressa, D. Dufresne, and Ph. Bournot, AIAA Pap., No. 79-0250 (1979).
L. B. Glebov, O. M. Efimov, G. T. Petrovskii, et al., Kvantovaya Élektron. (Moscow) 12, 2077 (1985).
E. Yablonovitch, Phys. Rev. A 10, 1888 (1974).
D. C. Smith and R. J. Brown, J. Appl. Phys. 46, 1146 (1975); Principles of Laser Plasmas, Ed. by G. Bekefi (Wiley, New York, 1976; Énergoizdat, Moscow, 1982).
S. V. Zakharchenko, L. P. Semenov, and G. A. Sintyurin, Kvantovaya Élektron. (Moscow) 13, 1040 (1986).
Yu. P. Raizer, Laser-Induced Discharge Phenomena (Nauka, Moscow, 1974; Consultants Bureau, New York, 1977).
D. E. Lencioni and L. G. Pettingill, J. Appl. Phys. 48, 1848 (1977).
V. N. Anisimov, V. A. Vorob’ev, V. G. Grishina, et al., Kvantovaya Élektron. (Moscow) 22, 900 (1995).
L. I. Sedov, Similarity and Dimensionality Methods in Mechanics (Nauka, Moscow, 1977).
Author information
Authors and Affiliations
Additional information
__________
Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 71, No. 8, 2001, pp. 66–71.
Original Russian Text Copyright © 2001 by Meshalkin.
Rights and permissions
About this article
Cite this article
Meshalkin, E.A. Scattering of CO2 laser beam by a plasma of air breakdown at pressures of 1–300 torr. Tech. Phys. 46, 995–1000 (2001). https://doi.org/10.1134/1.1395120
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/1.1395120