Optical pumping device and method
US7656241B2 · kind B2 · utility
0Cited by
4References
25Claims
0Family size
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Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Sep 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for optical pumping of particles and a device for implementing same. The particles (14) are changed from one long lifetime level to another long lifetime level via a short lifetime level by means of interaction with light radiation (16) emitted by a laser source. Prior to this interaction, the light radiation undergoes depolarization in a direction that is essentially perpendicular to the direction of propagation thereof, so as to reduce the entrapment of particles (14) in the black state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.