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US 2020/0393296 A1Published application
Tunable graphene detector for broadband terahertz detection, imaging, and spectroscopy
AssigneeMassachusetts Institute of Technology
InventorLong JU
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Abstract
Disclosed are systems, methods, and structures including a tunable graphene detector for broadband terahertz detection, imaging, and spectroscopy.
Claims20
A tunable graphene detector structure comprising:
- a substrate having formed thereon;
- a source electrode, a drain electrode, and a gate electrode;
- and
- a graphene layer interposed between the electrodes;
- a magnet configured to be movable relative to the graphene.
2 more elements
A method for detecting terahertz (THz) radiation by a field-effect transistor (FET) structure having a graphene structure interposed between a source electrode and a drain electrode of the FET structure, said method comprising:
- exposing the graphene structure to a source of THz radiation;
- and
- applying a magnetic field to the FET structure;
- and
- varying the applied magnetic field.
2 more elements
A THz spectrometer comprising:
- a broadband source of THz radiation;
- and
- a graphene detector configured to respond to received THz radiation, said detector tunable by varying at least one of applied magnetic field and an applied electrical potential.
Dependencies are inferred from the claim text.