Optical device using magnetic thin films and electric field mean

Details Optical device using magnetic thin films and electric field mean Optical device using magnetic thin films and electric field mean

1989-09-13

1990-10-30

Arnold, Bruce Y.

350386, 350387, G02F 109

Patent

active

049664450

ABSTRACT:
A magnetic apparatus includes a magnetic semiconductor thin film, a power source for generating an electric field, an electrode for supplying charge from the power source to the magnetic thin film, a polarizer for linearly polarizing light emitted on the magnetic semiconductor thin film in a specific direction, and an analyzer for transmitting polarized light when the polarized light upon transmission through the magnetic semiconductor thin film has a specific Faraday rotational angle. When the electric field is applied to the magnetic semiconductor thin film, the magnetic order-disorder transition temperature of the film is changed to change a Faraday rotational angle. The light is transmitted through or shielded by the analyzer in correspondence with the Faraday rotational angle.

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Fabrication of Transparent PLZT Ceramics with a High Transmittance and Their Application to Optical Light Shutter; Japanese Journal of Applied Physics, vol. 26 (1987); 126-128 Supplement 26-2; Hayashi et al.

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