Differential impedance discharge for plasma generation

Details Differential impedance discharge for plasma generation Differential impedance discharge for plasma generation

1996-11-18

1998-05-19

Healy, Brian

Coherent light generators

Particular pumping means

Electrical

372 86, 372 58, 372 38, H01S 3097

Patent

active

057545812

ABSTRACT:
A method and apparatus for generating uniform, transverse-electrical discharges in gaseous media between two principal discharge electrodes is described. At least one of the electrodes is segmented and a differential voltage is generated between the segments. Voltage from a single high-voltage source is applied between the principal discharge electrodes and between the segments of the segmented electrode through a single switch. A differential voltage suitable for producing a discharge between the segments is generated therebetween from the high-voltage source by using a differential impedance circuit. Once sufficient ionization is generated, a discharge between the principal electrodes occurs. The invention has been demonstrated to be useful for providing electrical excitation for a carbon dioxide laser oscillator which may be operated in either a flowing gas or sealed mode.

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