Spatial light modulator and process of modulation

Details Spatial light modulator and process of modulation Spatial light modulator and process of modulation

1980-11-05

1984-02-07

Arnold, Bruce Y.

350 386, 350359, G02F 129, G03H 122

Patent

active

044299540

ABSTRACT:
Coherent light such as a laser beam is spatially modulated by causing it to interact at a photosensitive material such as a crystal with a focussed image of non-coherent light. An electric potential is applied to the crystal either transversely to the direction of the light or in line with the direction of the light according to either the Kerr effect or the Pockels effect. Typical crystals include Bismuth-silicon-oxide and strontium-barium-niobate.

REFERENCES:
patent: 3631409 (1971-12-01), Buchan
patent: 3669673 (1972-06-01), Ih et al.
patent: 3743507 (1973-07-01), Ih et al.
patent: 3828187 (1974-08-01), Winzer
Huignard et al., "Time Average Holographic Interferometry . . . ", Applied Optics, vol. 16, No. 11, pp. 2796-2798, Nov. 1977.
Huignard et al., "Real-Time Coherent Edge Reconstruction . . . ", Applied Optics, vol. 17, No. 17, pp. 2671-2672, Sep. 1, 1978.
Lohmann; A. W. "Matched Filtering with Self-Luminous Objects", Applied Optics Mar. 1968, vol. 7, No. 3, pp. 561-563.

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