Identification of Deeply Bound Heteronuclear Molecules Using Pulsed Laser Depletion Spectroscopy

Details Identification of Deeply Bound Heteronuclear Molecules Using Pulsed Laser Depletion Spectroscopy Identification of Deeply Bound Heteronuclear Molecules Using Pulsed Laser Depletion Spectroscopy

2010-07-14

arxiv.org/abs/1007.2400v1

Physics

Atomic Physics

4 pages, 5 figures

Scientific paper

We demonstrate that a near-dissociation photoassociation resonance can be used to create a deeply bound molecular sample of ultracold NaCs. To probe the resulting vibrational distribution of the sample, we use a new technique that can be applied to any ultracold molecular system. We utilize a tunable pulsed dye laser to produce efficient spectroscopic scans ($\sim700$ cm$^{-1}$ at a time) in which we observe the $1^{1} \Sigma^{+}\rightarrow 2^{1}\Sigma^{+}-2^{3}\Pi$ vibrational progression, as well as the dissociation limit to the Cs 6$^{2}$P$_{3/2}$ asymptote. We assign $1^{1} \Sigma^{+}$$(\emph{v}$ = 4, 5, 6, 11, 19) vibrational levels in our sample.

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