Scalable photon number resolving photon detector
US12339163B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2024 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Apr 18, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4473
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An example photon counting device includes one or more unit cells. Each unit cell includes one or more superconducting components. Each unit cell also includes a current dynamics control element coupled in series with the one or more superconducting components. Each unit cell further includes a transistor having a superconducting gate element that is coupled with the one or more superconducting components and a channel element that is electrically insulated from the superconducting gate element, where the channel element has a first resistance while the superconducting gate element is in a superconducting state and a second resistance while the superconducting gate element is in a non-superconducting state. The photon counting device further includes a bias current source coupled to the one or more unit cells and a waveguide optically coupled to the one or more unit cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.