Coherent light generators – Particular active media – Gas
Patent
1987-12-18
1989-07-18
Sikes, William L.
Coherent light generators
Particular active media
Gas
372 90, H01S 322, H01S 3223
Patent
active
048499838
ABSTRACT:
Process and apparatus for obtaining an excimer and application to a laser.
The apparatus comprises a compression chamber (9), compressor (11) for compressing the gaseous mixture R+XY+M in the compression chamber (9), an expansion chamber (3) communicating at least one opening (23,23a) with the compression chamber (9), a vacuum pump (25) for producing within the expansion chamber (3) a pressure well below that prevailing in the compression chamber (9), the pressure difference between the compression and expansion chambers, the surface of the opening and the volume of the compression chamber being such that the gaeous mixture entering the compression chamber undergoes a supersonic adiabatic expansion with a Mach number at least equal to 10 and electrodes (27, 29, 27a, 29a) for producing an electric discharge (E) in the expansion chamber (3), downstream (x) of the opening (23, 23a) FIG. 2.
REFERENCES:
patent: 4713823 (1987-12-01), Smith
patent: 4737965 (1988-04-01), Morr et al.
Appl. Phys. Lett., vol. 36, No. 3; "High Speed Power Long-Pulse Supersonic Flow XeCl Laser at 308mm"; Fontaine et al; Feb. 1980, pp. 185-187.
Optics Communications, vol. 52, No. 5; Jan. 1985; "An Optically Pumped Supersonic Iodine Beam Laser"; Hefter et al., pp. 330-335.
Sov. Phys. Usp., vol. 29, No. 1; Jan. 1986; pp. 31-56; "Condensed-and Compressed-Gas Lasers".
Boivineau Michel
Jouvet Christophe
Piuzzi Francois
Centre National de la Researche Scientifique
Commissariat a l''Energie Atomique
Holloway B. R. R.
Sikes William L.
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