T. Loftus et al., Probing magneto-optic trap dynamics through weak excitation of a coupled narrow-linewidth transition art. no. 061401, PHYS REV A, 6106(6), 2000, pp. 1401
Alkaline-earth-like atoms possess singlet and triplet manifolds coupled thr
ough the ground state. The weak and hence narrow linewidth intercombination
transition can provide a powerful probe of singlet-singlet magneto-optic t
rap (MOT) dynamics. We demonstrate in situ probing of an ytterbium MOT and
discuss how cloud position, size, and temperature can be determined.