Radiative deflection of a BaF molecular beam from the optical cycling

Abstract

We demonstrate a quasi optical cycling for the $X(v=0)\to A(v^{\prime }=0)$ transition and a radiative force induced deflection on the buffer-gas cooled BaF molecular beam. The laser induced fluorescence enhancement with additional sidebands and a polarization modulation scheme indicates that the hyperfine states and the Zeeman sublevels are closed. The quasi optical cycling by repumping the $X(v=1)\to A(v^{\prime }=0)$ leads to a $\sim$ 0.8 mm deflection of the beam via scattering $\sim$ 150 photons per molecule, in good agreement with the predictions from our multi-level rate equation model. Further improvement by closing the leakage $X(v=2)$ and $\Delta$ state allows scattering thousands of photons, and laser cooling and slowing of BaF.

arXiv comment7 pages, 6 figures

References in corpus (31)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• A High Phase-Space-Density Gas of Polar Molecules
• Quantum computation with trapped polar molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Quantum-State Controlled Chemical Reactions of Ultracold KRb Molecules
• Laser cooling of a diatomic molecule
• Magneto-optical trapping of a diatomic molecule
• Hybrid Quantum Processors: molecular ensembles as quantum memory for solid state circuits
• Molecules cooled below the Doppler limit
• Magneto-optical trapping of diatomic molecules
• Laser cooling and slowing of CaF molecules
• Three-body interactions with cold polar molecules
• Sisyphus Laser Cooling of a Polyatomic Molecule
• Radio Frequency Magneto-Optical Trapping of CaF with High Density
• New frontiers with quantum gases of polar molecules
• Creation of a low-entropy quantum gas of polar molecules in an optical lattice
• Radiative force from optical cycling on a diatomic molecule
• Destabilization of dark states and optical spectroscopy in Zeeman-degenerate atomic systems
• Sub-millikelvin dipolar molecules in a radio-frequency magneto-optical trap
• Quantum degenerate mixtures of alkali and alkaline-earth-like atoms
• Quantum fluids of self-assembled chains of polar molecules
• Quantum degenerate mixtures of strontium and rubidium atoms
• Design for a fountain of YbF molecules to measure the electron's electric dipole moment
• Rotational state microwave mixing for laser cooling of complex diatomic molecules
• Magneto-optical trapping forces for atoms and molecules with complex level structures
• An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
• Structures, Branching Ratios and Laser Cooling Scheme for 138BaF Molecule
• High-resolution optical spectroscopy with a buffer-gas-cooled beam of BaH molecules
• Cold collision and high-resolution spectroscopy of buffer gas cooled BaF Molecule
• An in-situ method for measuring the non-linear response of a Fabry-Perot cavity

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• High-resolution spectroscopy of barium monofluoride: Odd isotopologues, hyperfine structure and isotope shifts
• Magnetic hyperfine structure constants of ${}^{137}$BaF in the ${}^2{\Pi }_{1/2}$ and ${}^2{\Pi }_{3/2}$ excited states
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