Progress with an Optically Pumped Rb Electron Spin Filter
Abstract
Significant electron polarizations can be generated by passing a beam of unpolarized electrons through a cloud of optically pumped Rb vapor(Batelaan et al.) PRL 82 4216 1999. The drifting electrons are oriented along the optical pumping axis through spin exchange processes. Buffer gasses play a complex role in the system, affecting both the rubidium polarization and the electron beam current and energy width. We have recently begun investigations with a more powerful laser that can dramatically increase the rubidium magnetization. This polarized electron source has important potential applications, when the UHV required for GaAs sources is not achievable. Recent progress on this source will be reported.
- Publication:
-
APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- June 2000
- Bibcode:
- 2000APS..DMP..K508R