Si-traceable Rydberg atom radiofrequency power meter and determining power of radio frequency radiation
US11435386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Nov 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R21/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A SI-traceable Rydberg atom radiofrequency power meter determines power of reference radiofrequency radiation and includes: a reference radiofrequency source that provides reference radiofrequency radiation; a vapor cell including: a pair of parallel-plate waveguides; a vapor cell wall including parallel opposing faces of the parallel-plate waveguides; and the vapor space physically bounded by the vapor cell wall to contain gas atoms in an optical overlap volume; and a transmission detector that receives the output light from the vapor cell and produces a transmission signal from the transmission detector for determination of power of the reference radiofrequency radiation, wherein the SI-traceable Rydberg atom radiofrequency power meter determines power of the reference radiofrequency radiation by electromagnetically induced transparency of the gas atoms in a Rydberg electronic state, the determination of power being traceable to the International System of Units (SI).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.