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US 12,584,977 B2Granted
Magnetic field detector
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsSergio A Montoya, Benjamin J Taylor
Life of this patent
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Abstract
A magnetic field detector includes a substrate, two or more Josephson junctions, and one or more heater elements. The two or more of Josephson junctions are connected to each other by superconducting interconnected paths via a superconducting material and are arranged in an array. The one or more heater elements directly or indirectly adjust the temperature of at least one Josephson junction via a tunable power source.
Claims4
A magnetic field detector, comprising:
- a substrate;
- two asymmetrical Josephson junctions disposed on the substrate, both asymmetrical Josephson junctions having a tunneling barrier formed of an insulating material bisecting a superconducting material;
- a heater element in direct physical contact with each tunneling barrier, the heater element comprising a strip line or meander strip disposed on the tunneling barriers;
- and
- wherein a first of the two asymmetrical Josephson junctions has a tunneling barrier width greater than a tunneling barrier width of a second of the two asymmetrical Josephson junctions, wherein the difference in width is up to 40%.
2 more elements
Dependencies are inferred from the claim text.