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A conveyor-belt magneto-optical trap of CaF
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abstract
We report the experimental realization of a conveyor-belt magneto-optical trap for calcium monofluoride (CaF) molecules. The obtained highly-compressed cloud has a mean radius of 64(5) $\mu$m and a peak number density of $3.6(5) \times 10^{10}$ cm$^{-3}$, a 600-fold increase over the conventional red-detuned MOTs of CaF, and the densest molecular MOT observed to date. Subsequent loading of these molecules into an optical dipole trap yields up to $2.6 \times 10^4$ trapped molecules at a temperature of 14(2) $\mu$K with a peak phase-space density of $\sim 2.4 \times 10^{-6}$. This opens new possibilities for a range of applications utilizing high-density, optically trapped ultracold molecules.
Forward citations
Cited by 3 Pith papers
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Optical Trapping of SrOH Molecules for Dark Matter and T-violation Searches
An optical dipole trap holds about 1,400 SrOH molecules, and eEDM- and dark-matter-sensitive vibrational states show lifetimes of 135 to 320 ms, consistent with radiative decay.
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Blue-detuned Magneto-optical Trap of BaF molecules
A conveyor-belt blue-detuned MOT compresses trapped BaF molecules to 320 um, 240 uK, and a peak density of 1.3e7 cm^-3, a 50x density improvement over the red MOT.
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Optical cycling of MgF molecules within the hyperfine states in X(N=1) state
Optimized three-frequency optical cycling plus a tilted magnetic field enhances MgF P1/Q12(1) scattering by about 6x.
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