Optical Trapping of a Polyatomic Molecule in an â-Type Parity Doublet State.
Phys Rev Lett
; 130(15): 153202, 2023 Apr 14.
Article
em En
| MEDLINE
| ID: mdl-37115898
ABSTRACT
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 â-type parity doublet structure is a potential resource for a wide range of proposed quantum science applications with polyatomic molecules. We measure the spontaneous, radiative lifetime of this bending mode state to be â¼0.7 s.
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MEDLINE
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Ano de publicação:
2023
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Article