1D Magneto-Optical Trap of Polyatomic Molecules

Abstract

We demonstrate a 1D magneto-optical trap of the polar free radical calcium monohydroxide (CaOH). A quasi-closed cycling transition is established to scatter $\sim 10^3$ photons per molecule, predominantly limited by interaction time. This enables radiative laser cooling of CaOH while compressing the molecular beam, leading to a significant increase in on-axis beam brightness and reduction in temperature from 8.4 mK to 1.4 mK.

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• Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
• Enhanced Sensitivity to Ultralight Bosonic Dark Matter in the Spectra of the Linear Radical SrOH
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• Quantum control of molecules for fundamental physics
• Evidence for association of triatomic molecule in ultracold ${}^{23}$Na${}^{40}$K and ${}^{40}$K mixture
• Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
• Establishing a nearly closed cycling transition in a polyatomic molecule
• Three-dimensional Magneto-optical Trapping of Barium Monofluoride
• A laser cooling scheme for precision measurements using barium monofluoride (137Ba19F) molecules
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• Spectroscopy on the $A^1\Pi \leftarrow X^1{\Sigma }^{+}$ Transition of Buffer-Gas Cooled AlCl
• Characterizing the Fundamental Bending Vibration of a Linear Polyatomic Molecule for Symmetry Violation Searches
• Vibronic branching ratios for nearly-closed rapid photon cycling of SrOH
• Towards improved loading, cooling, and trapping of molecules in magneto-optical traps
• A Blue-Detuned Magneto-Optical Trap of CaF Molecules
• Absorption spectroscopy for laser cooling and high-fidelity detection of barium monofluoride molecules
• Laser-coolable AcOH${}^{+}$ ion for $\mathcal{C}\mathcal{P}$-violation searches
• Large molasses-like cooling forces for molecules using polychromatic optical fields: A theoretical description
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• Intensity-borrowing mechanisms pertinent to laser cooling of linear polyatomic molecules
• ExoMol line lists -- XLVII. Rovibronic molecular line list of the calcium monohydroxide radical (CaOH)
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• Fast optical transport of ultracold molecules over long distances
• Four-body singlet potential energy surface for reactions of calcium monofluoride
• Laser spectroscopy of aromatic molecules with optical cycling centers: strontium (I) phenoxides
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• Impact of the ligand deformation on the $\mathcal{P}$,$\mathcal{T}$-violation effects in the YbOH molecule
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• Frequency-doubled Nd:YAG MOPA laser system with programmable rectangular pulses up to 200 microseconds
• Long-range interactions of aromatic molecules with alkali-metal and alkaline-earth-metal atoms
• Vibronic coupling limits the use of high-lying electronic states in complex molecules for laser cooling
• Laser Cooling Scheme for the Carbon Dimer (${}^{12}$C${}_2$)
• Features of Molecular Structure Beneficial for Optical Pumping
• Single-photon loading of polar molecules into an optical trap
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