Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confemf02b&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
Physics
Electronic
Scientific paper
We report on the observation of blue-detuned photoassociation as proposed in [1] and references therein. ``Blue-detuned" refers to the location of vibrational levels --- energetically above the corresponding atomic asymptote. Ultracold 85Rb atoms in a MOT were photoassociated to levels of the 1 ^3Π_g state a few hundred wavenumbers above the 5S+5P3/2 limit. These transitions were found to be strong even though they occur at short internuclear separations (R_e=10 a_0). Levels of the 1 ^3Π_g state spontaneously decay to the a ^3Σ_u^+ state, where they are detected by resonantly enhanced multiphoton ionization with time-of-flight spectroscopy. We have observed most vibrational levels of the 1 ^3Π_g state belonging to all of its spin-orbit components (0_g^+,0_g^-,1_g,2_g). Recent unpublished ab-initio calculations [2] of these potentials show good agreement with the observed vibrational and rotational constants. This work is supported by the NSF, AFOSR, and UConn Research Foundation.
[1] M.-L. Almazor et. al., Eur. Phys. J. D 15 355 (2001) [2] O. Dulieu, private communication
Banerjee Joydeep
Bellos M. A.
Carollo R.
Eyler Edward E.
Gould Phillip L.
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