Vapor cells with a bidirectional solid-state charge-depletion capacitor for mobile ions
US9837177B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a vapor-cell system comprising: a vapor-cell region configured for vapor-cell optical paths; a first electrode disposed in contact with the vapor-cell region; a second electrode electrically isolated from the first electrode; and an ion conductor interposed between the first electrode and the second electrode. The first electrode, the ion conductor, and the second electrode collectively form a bidirectional solid-state electrochemical charge-depletion capacitor. The ion conductor is ionically conductive for mobile ions, such as Rb+, Cs+, Na+, K+, or Sr2+. The first electrode is permeable to the mobile ions and/or neutral atoms formed from the mobile ions. The system can be electrically controlled to quickly pump mobile ions into or out of the vapor-cell region. The system may further contain an atom chip, and the vapor-cell optical paths may be configured to trap a population of cold atoms. Methods of operating these vapor-cell systems are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.