Optical Trapping of a Polyatomic Molecule in an ℓ-Type Parity Doublet State.

@article{Hallas2022OpticalTO,
  title={Optical Trapping of a Polyatomic Molecule in an ℓ-Type Parity Doublet State.},
  author={Christian Hallas and Nathaniel B. Vilas and Lo{\"i}c Anderegg and Paige Robichaud and Andrew Winnicki and Chaoqun Zhang and Lan Cheng and John M. Doyle},
  journal={Physical review letters},
  year={2022},
  volume={130 15},
  pages={
          153202
        }
}
We report optical trapping of a polyatomic molecule, calcium monohydroxide (CaOH). CaOH molecules from a magneto-optical trap are sub-Doppler laser cooled to 20(3)  μK in free space and loaded into an optical dipole trap. We attain an in-trap molecule number density of 3(1)×10^{9}  cm^{-3} at a temperature of 57(8)  μK. Trapped CaOH molecules are optically pumped into an excited vibrational bending mode, whose ℓ-type parity doublet structure is a potential resource for a wide range of proposed… 
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