Optical beam size effects in spin polarized pumping
Abstract
We have experimentally and theoretically investigate the effect of optical pump beam size on narrowband spin polarized optical pumping of alkali atom vapor. We developed a six-level model describing narrowband spin polarized optical pumping of alkali atoms and applied this model to an atomic vapor cell, accounting for atomic transit time through the optical beam and wall collision effects. Our expression for the wall collision effects is derived from the diffusion model. Overall, we obtained good agreement between theory and experimentally measured relaxation time constants.
Publication Reference
2014 European Frequency and Time Forum (EFTF), Neuchatel (Switzerland), pp. 241-244
Year
2014-06