Authors
Joseph D Murphree, Maitreyi Jayaseelan, Zekai Chen, Elisha Haber, Nicholas P Bigelow
Publication date
2019/5
Journal
APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
Volume
2019
Pages
S01. 079
Description
Two-photon Raman processes are widely used to coherently manipulate atoms using a pair of laser fields. For dipole transitions, the transfer of angular momentum to the cloud is partitioned into one exchange between the field's polarization and the electron's angular momentum and another exchange between the field's orbital angular momentum (OAM) and the center-of-mass motion of the atom. Quadrupole transitions lift these restrictions, allowing for a richer interplay between polarization, OAM, and the angular momenta of the atom. This opens up the possibility of electronic state control using both the polarization and spatial mode of the applied fields and modified mechanical effects. These transitions are amplified to experimentally relevant magnitudes in the presence of large electric field gradients. This enhancement has been observed in atoms in the evanescent fields generated by light passing through …
Scholar articles
JD Murphree, M Jayaseelan, Z Chen, E Haber… - APS Division of Atomic, Molecular and Optical Physics …, 2019