High-resolution spectroscopy of AlF in the X, a, and A states shows its A1Pi-X1Sigma+ transition is rotationally closed with favorable branching ratios, establishing AlF as a practical laser-cooling candidate.
Ultracold molecules for measuring the electron's electric dipole moment
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abstract
We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100 $\mu$K. This is a key step towards a measurement of the electron's electric dipole moment using ultracold molecules. We compare the effectiveness of magnetically-assisted and polarization-gradient sub-Doppler cooling mechanisms. We model the experiment and find good agreement with our data.
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Spectroscopic characterization of aluminum monofluoride with relevance to laser cooling and trapping
High-resolution spectroscopy of AlF in the X, a, and A states shows its A1Pi-X1Sigma+ transition is rotationally closed with favorable branching ratios, establishing AlF as a practical laser-cooling candidate.