Spatial resolution and simultaneous multiple single photon detection using superconducting structured parallel nanowires
AssigneeKing Fahd University of Petroleum and Minerals
InventorKhalil Harrabi
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Abstract
A multiple arrayed parallel nanowire device includes one or more arrays connected in series, wherein each array includes a plurality of narrow nanowires flanked by one or more wide nanowires, a top electrode, an applied current, a bottom ground electrode, and one or more lateral electrodes where one or more currents or one or more probing voltages can be applied to detect voltage changes in each array. The device detects single and multiple photons without destroying superconductivity in all the nanowires in the array and is thus capable of remaining sensitive to subsequent photon impacts. Moreover, the device can resolve the location of each photon impact.
Claims8
An arrayed parallel nanowire device, comprising:
- a substrate;
- an array including a plurality of nanowires connected in parallel disposed on the substrate;
- and
- a source electrode and a ground electrode connected to the array and configured to conduct a current from the source electrode through the array to the ground electrode, wherein
- the array is configured to detect one or more photon impacts;
- the array includes a first set of a plurality of nanowires disposed in an interior of the array and a second set of a plurality of nanowires disposed on a periphery of the array;
- a width of the nanowires in the first set is narrower than a width of the nanowires in the second set;
- and
- each of the plurality of nanowires of the first set is electrically connected in parallel to each of the plurality of nanowires of the second set.
Dependencies are inferred from the claim text.