Transcript Carollo_blue_detunedPA_OSU2011.ppt

Blue-detuned
85
Photoassociation in Rb2
M.A. Bellos, D. Rahmlow, R. Carollo,
J. Banerjee, O. Dulieu, A. Gerdes, E. E. Eyler,
P. L. Gould, and W. C. Stwalley
Funding: NSF, AFOSR, UConn
Motivation
Create stable ultracold molecules for
• Metrology
• Cold chemisty
• Quantum computing
Magnetoassociation
+ STIRAP
Photoassociation
+ spontaneous emission
Pulsed
CW
Two lasers
One laser
State selective final state
Distribution of final states
Quantum degenerate regime (100nK)
MOT temperature (100 K)
3 x 104 molecules/loading cycle [1]
~2 x 104 molecules/s
[1] Innsbruck (Lang, et al. PRL 101, 133005 (2008))
Conclusion
• performed blue-detuned photoassociation and
spectroscopy of the 1 3g state
• populated v’’= 0 level in a metastable state
• complementary technique to STIRAP
• similar schemes for other alkali dimers,
including heteronuclear dimers
• more details on upcoming PCCP article