Ion-beam-excited gas laser

Details Ion-beam-excited gas laser Ion-beam-excited gas laser

1978-08-23

1980-10-14

Davie, James W.

Oscillators

Molecular or particle resonant type

331 945G, H01S 309

Patent

active

042284074

ABSTRACT:
A high-power gas laser pumped by an intense, pulsed, space charge-and current-neutralized ion beam. A high-pressure gas in the laser cavity is ionized by an ion beam. Atomic processes occur which result in a population inversion for the excited states of the gas. Coherent radiation is then emitted by the excited gas atoms in the inverted state. The light is amplified as it traverses the gas. Multiple traversal can be obtained by using an optical cavity comprising mirrors which reflect the light into the excited gas so that the light can be further amplified with each pass through the cavity. Extraction of light energy is done by using a partially transmitting mirror as part of the optical cavity.

REFERENCES:
patent: 4110703 (1978-08-01), Jalufka et al.
S. A. Golubev et al., "Effect of Proton Beam on the Generation of a CO.su Gas Laser", Soviet Physics JETP, vol. 35, No. 2 Aug. 1972, pp. 244-247.
G. S. Hurst et al., "Proton Excitation of the Argon Atom", Physical Review, vol. 178, No. 1, 5 Feb. 1969, pp. 4-10.
Mahaffey et al., "Studies of Ion-Beam-Generation Efficiency with Reflex Tetrodes", Appl Phys. Lett. 32(9), May. 1, 1978, pp. 522-524.
Pasour et al., "Reflex Tetrode with Unidisectional Ion Flow", Physical Review Letters, vol. 40, No. 7, Feb. 13, 1978, pp. 448-451.

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