Static information storage and retrieval – Systems using particular element – Superconductive
Patent
1992-06-22
1994-02-15
LaRoche, Eugene R.
Static information storage and retrieval
Systems using particular element
Superconductive
505701, 505 1, 257 33, H03K 1792, H01L 3900, G11B 1110
Patent
active
052873021
ABSTRACT:
A superconducting optically reconfigurable device (SORD) wherein predetermined and optically achieved patterns of superconducting material generate Meissner effect magnetic flux to achieve control of physical characteristics in local areas of an adjacent film of electromagnetic energy controlling material. The superconducting material magnetic flux is remembered by way of a cycle wherein selected portions of the material are elevated from the superconducting temperature range through the critical temperature T.sub.c into the non-superconducting state while in the presence of a writing magnetic field and then cooled through the critical temperature T.sub.c to permanently retain the writing magnetic flux in the area of temporary optical warming. The pattern of magnetic flux thusly achieved is coupled to one of several possible electromagnetic energy influencing or controlling materials which also have magnetic flux susceptibility. The magnetically influenced areas of the electromagnetic energy affecting or controlling material can accomplish a variety of controlling operations on the receive electromagnetic energy, these effects including Faraday effect alteration of phase relationships in a left and right circularly polarized spatial light modulator. The magnetic flux affected material may also be a ferrite wherein the Faraday effect steering of radio frequency spectrum energy between ports of a circulator, for example, can be accomplished.
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Brandelik Joseph E.
Suzuki Andrew H.
Hollins Gerald B.
Kundert Thomas L.
LaRoche Eugene R.
Nguyen Viet Q.
The United States of America as represented by the Secretary of
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