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Magnetic field-induced spectroscopy of strongly forbidden optical transitions



Alexey Taychenachev, V Yudin, Christopher W. Oates, C Hoyt, Zeb Barber, Leo W. Hollberg


We propose a method that uses a static magnetic field to enable direct optical excitation of forbidden electric dipole transitions that are otherwise prohibitively weak. The method is based on mixing of atomic states by a static magnetic field. The method can also be viewed as a limiting case of two-photon spectroscopy, where the frequency of one of the fields -- a magnetic field, in this case -- is equal to zero. Using this method, we calculate that an optical lattice-based ytterbium standard could achieve a fractional frequency uncertainty of less than 10-17 for the metrologically preferred even isotope.
Physical Review Letters


atomic coherence, laser frequency metrology, laser spectroscopy


Taychenachev, A. , Yudin, V. , Oates, C. , Hoyt, C. , Barber, Z. and Hollberg, L. (2006), Magnetic field-induced spectroscopy of strongly forbidden optical transitions, Physical Review Letters, [online], (Accessed May 30, 2024)


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Created March 3, 2006, Updated February 17, 2017