Open AccessSpatially resolved magnetometry using cold atoms in dark optical tweezers
Author(s) -
Fredrik K. Fatemi,
Mark Bashkansky
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.002190
Subject(s) - optics , magnetometer , optical tweezers , magnetic field , spectroscopy , stray light , ultracold atom , materials science , image resolution , light beam , beam (structure) , zeeman effect , faraday cage , resolution (logic) , quadrupole , physics , atomic physics , quantum mechanics , artificial intelligence , computer science , quantum
We use Faraday spectroscopy of atoms confined to crossed hollow beam tweezers to map magnetic fields over 3 millimeters with 200 micron resolution in a single trap loading cycle. The hollow beams are formed using spatial light modulation, and the trap location is scanned using acousto-optic deflectors. We demonstrate the technique by mapping a linear quadrupole magnetic field with 10 nT sensitivity.