Superlattice electrooptic devices
AssigneeExxon Research & Engineering Co.
InventorCharles B. Roxlo
Life of this patent
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Abstract
Electrooptic devices for the modulation and conversion of light which include semiconductor superlattices which have large electrooptic and non-linear optical coefficients due to their built-in electric fields. These materials can be deposited at low temperatures onto virtually any substrate.
Claims7
An electrooptic device in which the active materials comprises a superlattice which includes a multilayered amorphous material having non-zero linear electrooptic coefficients due to the presence of internal built-in electric fields caused by charge distributed asymmetrically in the layers, wherein adjacent layers have different values of quadratic electrooptic coefficients and wherein an applied voltage of said active material controls propagation of light through said active material.
Dependencies are inferred from the claim text.