Gas-flow-induced population inversion in argon discharge

Pleiades Publishing Ltd - Tập 34 - Trang 48-51 - 2011
G. A. Galechyan1
1Institute of Applied Physical Problems, National Academy of Sciences of Armenia, Yerevan, Armenia

Tóm tắt

The inverse population of excited atomic states in the electric discharge in argon at elevated pressures is created in a longitudinal turbulent gas flow as a result of the transformation of the positive column from the state of a uniform noncontracted discharge to the contracted state, which is followed by superluminescent flash generation. It is suggested to use this phenomenon for the creation of a gas-flow-controlled discharge laser.

Tài liệu tham khảo

Handbook of Lasers, Ed. by A. M. Prokhorov (Sov. Radio, Moscow, 1978), Vol. 1 [in Russian]. A. R. Aramyan, Pis’ma Zh. Éksp. Teor. Fiz. 69, 355 (1999) [JETP Lett. 69, 383 (1999)]. A. R. Aramyan, Phys. Rev. Lett. 91, 155 002 (2003). Yu. P. Raizer, Gas Discharge Physics (Nauka, Moscow, 1992; Springer, Berlin, 1991). C. O. Brown and J.W. Devis, Appl. Phys. 21, 4880 (1972). G. A. Galechyan, in Chemistry of Plasma (Énergoatomizdat, Moscow, 1983), Vol. 10, pp. 73–91 [in Russian]. G. A. Galechyan, Laser Phys. 4, 23 (1994). V. L. Granovskiĭ, Electric Current in Gases: Steady-State Current (Nauka, Moscow, 1971) [in Russian]. A. R. Aramyan, G. A. Galechyan, and A. R. Mkrtchyan, Akust. Zh. 37, 213 (1991) [Sov. Phys. Acoust. 37, 107 (1991)]. A. R. Aramyan, G. A. Galechyan, and A. R. Mkrtchyan, Pis’ma Zh. Tekh. Fiz. 17(1), 12 (1991) [Sov. Tech. Phys. Lett. 17, 4 (1991)]. G. A. Galechyan, Usp. Fiz. Nauk 165, 1357 (1995) [Phys. Usp. 38, 1309 (1995)]. A. V. Eletskiĭ and B. M. Smirnov, Usp. Fiz. Nauk 136, 25 (1982) [Sov. Phys. Usp. 25, 13 (1982)]. W. L. Borst and E. C. Zipf, Phys. Rev. 4, 153 (1971). R. S. J. Frend, Chem. Phys. 54, 3125 (1971).