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Title: An optically modulated zero-field atomic magnetometer with suppressed spin-exchange broadening

We demonstrate an optically pumped {sup 87}Rb magnetometer in a microfabricated vapor cell based on a zero-field dispersive resonance generated by optical modulation of the {sup 87}Rb ground state energy levels. The magnetometer is operated in the spin-exchange relaxation-free regime where high magnetic field sensitivities can be achieved. This device can be useful in applications requiring array-based magnetometers where radio frequency magnetic fields can induce cross-talk among adjacent sensors or affect the source of the magnetic field being measured.
Authors:
 [1] ;  [2] ; ;  [1]
  1. Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22254905
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 4; Other Information: (c) 2014 U.S. Government; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GROUND STATES; MAGNETIC FIELDS; MAGNETOMETERS; MODULATION; RADIOWAVE RADIATION; RELAXATION; RUBIDIUM 87; SENSITIVITY; SENSORS; SPIN EXCHANGE