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US 2022/0187200 A1Published application
QUANTUM ENTANGLEMENT-BASED DETECTION SYSTEM (QE-bDS)
AssigneeThe Boeing Company
InventorsJeffrey H. Hunt, Pamela L. Blake
Life of this patent
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Abstract
Methods of detecting material in an object are provided. The method includes emitting an entangled photon pair having a sensing photon and a local photon, directing the sensing photon to the object including a predetermined material, directing the local photon to a detector, and detecting a change in the local photon when the sensing photon encounters the predetermined material in the object.
Claims20
A method of detecting material in an object, the method comprising:
- emitting an entangled photon pair comprising a sensing photon and a local photon;
- directing the sensing photon to the object including a predetermined material;
- directing the local photon to a detector;
- and
- detecting a change in the local photon when the sensing photon encounters the predetermined material in the object.
2 more elements
A method of detecting material in an object, the method comprising:
- emitting a target band entangled photon pair at a target wavelength in an absorption band for a predetermined material, the target band entangled photon pair comprising a target band sensing photon and a target band local photon;
- emitting a guard band entangled photon pair at a guard wavelength outside of the absorption band for the predetermined material, the guard band entangled photon pair comprising a guard band sensing photon and a guard band local photon;
- directing the target band sensing photon and the guard band sensing photon to the object including the predetermined material;
- directing the target band local photon to a target band detector and the guard band local photon to a guard band detector;
- and
- detecting a change in at least one of the target band local photon and the guard band local photon when the target band sensing photon and the guard band sensing photon, respectively, encounter the predetermined material in the object.
3 more elements
A detection system comprising:
- a target band entangled photon pair emitter configured to emit a target band sensing photon and a target band local photon, the target band sensing photon being directed to an object;
- and
- a target band detector configured to receive the target band local photon and output a signal when the target band local photon indicates that the target band sensing photon has encountered a predetermined material in the object.
Dependencies are inferred from the claim text.