Transmission mode photocathode sensitive to ultraviolet light

Details Transmission mode photocathode sensitive to ultraviolet light Transmission mode photocathode sensitive to ultraviolet light

1996-07-09

1997-12-16

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With coating, e.g., providing protective coating on...

G02B 528

Patent

active

056978260

ABSTRACT:
A photocathode which is responsive to ultraviolet light to release photoelectrons includes a supportive window layer of sapphire and a single-crystal active layer of AlGaN. Interposed between the window layer and the active layer is an interface layer which insures a low population density of crystalline defects at the interface of the interface layer with the active layer and in the active layer itself. Consequently, the photocathode is an effective emitter of photoelectrons in the transmission mode.

REFERENCES:
patent: 4286373 (1981-09-01), Gutirrez et al.
patent: 4616248 (1986-10-01), Khan et al.
patent: 5182670 (1993-01-01), Khan et al.
patent: 5268570 (1993-12-01), Kim et al.

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