Oscillators – Molecular or particle resonant type
Patent
1978-03-23
1981-10-13
Davie, James W.
Oscillators
Molecular or particle resonant type
331 945D, 331 945G, H01S 3097
Patent
active
042951038
ABSTRACT:
Coherent light is emitted from a laser which comprises a cylindrical tube of dielectrical material surrounded at axially spaced locations by looped inductors extending over the major part of its circumference connected across a pulse generator, e.g. through a coaxial-cable transformer. The pulses may be used to vaporize annular metallic bodies within the tube, respectively aligned with these inductors, in order to generate metal vapors which are then excited by other pulses that are either transmitted axially through the tube across a pair of end electrodes or applied to other inductors surrounding the tube at locations between the vaporizing inductors. The tube may also be filled with a buffer gas, in which case the metallic bodies may be divided into arcuate sections separated by small gaps giving rise to arcing. Alternatively, the first-mentioned inductors may be used to excite only a gas, without metal-vapor generation. Vaporization may also be carried out with the aid of a transverse magnetic field generated by an external inductor in the form of a coil lying flat against a wall of a prismatic tube lines internally with the metallic source material.
REFERENCES:
patent: 3393372 (1968-07-01), Vickery et al.
patent: 3493845 (1970-02-01), Bramley
patent: 3509490 (1970-04-01), Zarowin
patent: 3521119 (1970-07-01), Ahmed et al.
patent: 3585524 (1971-06-01), Silfvast
patent: 3597700 (1971-08-01), Rouy
patent: 3639804 (1972-02-01), Hernqvist
patent: 3891941 (1975-06-01), Roberts et al.
patent: 3986139 (1976-10-01), Meneely
Davie James W.
Ross Karl F.
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