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Title: Three-axis atomic magnetometer based on spin precession modulation

We demonstrate a three-axis atomic magnetometer with one intensity-modulated pump beam and one orthogonal probe beam. The main field component is measured using the resonance of the pumping light, while the transverse field components are measured simultaneously using the optical rotation of the probe beam modulated by the spin precession. It is an all-optical magnetometer without using any modulation field or radio frequency field. Magnetic field sensitivity of 0.8 pT/Hz{sup 1∕2} is achieved under a bias field of 2 μT.
Authors:
; ; ; ;  [1]
  1. School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191 (China)
Publication Date:
OSTI Identifier:
22485997
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 18; Other Information: (c) 2015 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; BEAMS; MAGNETIC FIELDS; MAGNETOMETERS; MODULATION; OPTICAL PUMPING; PRECESSION; RADIOWAVE RADIATION; RESONANCE; SENSITIVITY; SPIN; VISIBLE RADIATION