			10min:

MILLIMETER-WAVE SPECTROSCOPY OF COLD RB⁸⁵ ATOMS.

JIANING HAN, JAMIL YASIR, PAUL J. TANNER, D. V. L. NORUM AND THOMAS F. GALLAGHER, Department of Physics, University of Virginia, McCormick Road, Charlottesville, Virginia 22903.

Cold Rb⁸⁵ atoms were prepared by magneto-optical trap. Millimeter-wave has been used to drive nd to (n-2)f (32 \leq n \leq 39) one-photon and nd to (n-1)g (31 \leq n\leq 36) two-photon transitions. Quantum defects of f and g states of Rb⁸⁵ were calculated. Full analyses will be presented. .