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  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper ID_3

Sensitive optical magnetometry based on nonlinear magneto-optical rotation with amplitude-modulated light

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Abstract

Nonlinear magneto-optical rotation (NMOR), an all-optical technique now finding its use in sensitive magnetometry, is light-intensity-dependent rotation of the polarization plane of linearly polarized light upon its propagation through a medium placed in a magnetic field. For an intense light beam, the dependence of the NMOR angle on the magnetic field can be very strong, which allows sensitivity reaching 3·10−16 T Hz−1/2 [1]. This sensitivity exceeds that obtained with the Superconducting Quantum Interference Devices (SQUIDs). Further advantages of the all-optical approach are low cost and technical simplicity.

© 2007 IEEE

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