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Title: Alkali-vapor magnetic resonance driven by fictitious radiofrequency fields

We demonstrate an all-optical {sup 133}Cs scalar magnetometer, operating in nonzero magnetic field, in which the magnetic resonance is driven by an effective oscillating magnetic field provided by the AC Stark shift of an intensity-modulated laser beam. We achieve a projected shot-noise-limited sensitivity of 1.7fT/√(Hz) and measure a technical noise floor of 40fT/√(Hz). These results are essentially identical to a coil-driven scalar magnetometer using the same setup. This all-optical scheme offers advantages over traditional coil-driven magnetometers for use in arrays and in magnetically sensitive fundamental physics experiments, e.g., searches for a permanent electric dipole moment of the neutron.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [5]
  1. Department of Physics, University of California, Berkeley, California 94720-7300 (United States)
  2. Institut für Physik, Johannes Gutenberg Universität, 55128 Mainz (Germany)
  3. (Germany)
  4. Helmholtz Institut, Johannes Gutenberg Universität, 55099 Mainz (Germany)
  5. (United States)
Publication Date:
OSTI Identifier:
22391956
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 19; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CESIUM 133; ELECTRIC DIPOLE MOMENTS; LASER RADIATION; LASERS; MAGNETIC FIELDS; MAGNETIC RESONANCE; MAGNETOMETERS; MODULATION; NEUTRONS; VAPORS