Metal film light modulator

Details Metal film light modulator Metal film light modulator

1986-07-14

1988-06-07

Wan, Gene

350356, G02F 101, G02F 103, G02F 105

Patent

active

047492627

ABSTRACT:
An improved device for modulating the intensity of a light beam is described which comprises a first isoceles optical prism; a first dielectric layer, a thin metallic layer, and a second dielectric layer substantially identical in composition and thickness to the first dielectric layer deposited successively on the base of the first prism; a second isoceles optical prism disposed with the base thereof contacting the last deposited layer; and a controllable source of electrical current connected to the metallic layer for establishing and modulating an electro-magnetic field at the respective surfaces of the metallic layer.

REFERENCES:
patent: 3421002 (1969-01-01), Berger
patent: 4094579 (1978-06-01), McMahon et al.
patent: 4143263 (1979-03-01), Eichweber
patent: 4198115 (1980-04-01), Kaminow
patent: 4249796 (1981-02-01), Sincerbox et al.
patent: 4270847 (1981-06-01), Meyer
patent: 4313651 (1982-02-01), Miller, Jr.
R. Dragila et al., "High Transparency of Classically Opaque Metallic Film Phys. Rev. Lett. 55:10, 1117-1120, Sep. 2, 85.

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