TY - JOUR AU - Lett, Paul AU - Helmerson, Kristian AU - Phillips, William AU - Ratliff, L AU - Rolston, S AU - Wagshul, M C2 - Physical Review Letters DA - 1993-01-01 LA - en M1 - 71 PB - Physical Review Letters PY - 1993 TI - Spectroscopy of Na2 by photoassociation of laser cooled sodium ER -