Spectroscopy of excited triplet states of ultracold $^{39}$K$^{85}$Rb molecules relevant to populating $a\,^3\Sigma^+, v'' =0$

POSTER

Abstract

We report the observation and analysis of the $3\,^3\Pi$ and $3\,^3\Sigma^+$ states of ultracold $^{39}$K$^{85}$Rb molecules. The observations are based on resonance-enhanced multiphoton ionization (REMPI) of ultracold KRb molecules. These ultracold molecules are formed by photoassociation of ultracold $^{39}$K and $^{85}$Rb atoms in a magneto-optical trap, followed by spontaneous emission. We also propose schemes for utilizing these excited triplet states for the formation of ultracold KRb molecules in the $v''=0$ level of the metastable $a\,^3\Sigma^+$ state.

Authors

  • Edward Eyler

    University of Connecticut, Dept. of Physics, University of Connecticut

  • Jayita Banerjee

    Dept. of Physics, University of Connecticut, University of Connecticut

  • Ryan Carollo

    Dept. of Physics, University of Connecticut, University of Connecticut

  • Michael Bellos

    Dept. of Physics, University of Connecticut, University of Connecticut

  • Phillip Gould

    Dept. of Physics, University of Connecticut, University of Connecticut

  • William Stwalley

    Dept. of Physics, University of Connecticut, University of Connecticut, Department of Physics, University of Connecticut, Storrs, CT 06269-3046, USA