Laser activated diffuse discharge switch

Details Laser activated diffuse discharge switch Laser activated diffuse discharge switch

1987-04-30

1988-05-10

Moore, David K.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy responsive load device

315149, 315156, 315159, 315358, 307117, 307139, 313637, 313643, 200DIG36, H01J 724, H05B 3702

Patent

active

047438070

ABSTRACT:
The invention is a gas mixture for a diffuse discharge switch which is capable of changing from a conducting state to an insulating state in the presence of electrons upon the introduction of laser light. The mixture is composed of a buffer gas such as nitrogen or argon and an electron attaching gas such as C.sub.6 H.sub.5 SH, C.sub.6 H.sub.5 SCH.sub.3, CH.sub.3 CHO and CF.sub.3 CHO wherein the electron attachment is brought on by indirect excitation of molecules to long-lived states by exposure to laser light.

REFERENCES:
patent: 3633067 (1972-01-01), Dubois
patent: 4063130 (1977-12-01), Hunter, Jr.
patent: 4401920 (1983-08-01), Taylor et al.
patent: 4484106 (1984-11-01), Taylor et al.
patent: 4490650 (1984-12-01), Christophorou et al.
Schoenback et al, "An Optically Controlled Diffuse Discharge Switch," Digest of Technical Papers, Jun. 1-3, 1981, pp. 142-146.
Rossi, "Photoenhanced Electron Attachment of Vinylchloride and Trifluoroethylene at 193 nm," Appl. Phys. Lett. 47 (6), 15 Sep. 1985, pp. 576-578.

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