Crossed-Beam slowing to enhance narrow-line Ytterbium Magneto-Optic Traps

Abstract

We demonstrate a method to enhance the atom loading rate of a ytterbium (Yb) magneto-optic trap (MOT) operating on the 556 nm ${{}^{1}S}_0\to {{}^{3}P}_1$ intercombination transition (narrow linewidth ${\Gamma }_g=2\pi \times 182$ kHz). Following traditional Zeeman slowing of an atomic beam near the 399 nm ${{}^{1}S}_0\to {{}^{1}P}_1$ transition (broad linewidth ${\Gamma }_p=2\pi \times 29$ MHz), two laser beams in a crossed-beam geometry, frequency tuned near the same transition, provide additional slowing immediately prior to the MOT. Using this technique, we observe an improvement by a factor of 6 in the atom loading rate of a narrow-line Yb MOT. The relative simplicity and generality of this approach make it readily adoptable to other experiments involving narrow-line MOTs. We also present a numerical simulation of this two-stage slowing process which shows good agreement with the observed dependence on experimental parameters, and use it to assess potential improvements to the method.

References in corpus (17)

• An atomic clock with $10^{-18}$ instability
• A one-dimensional liquid of fermions with tunable spin
• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• Quantum computing with alkaline earth atoms
• Thermalization near integrability in a dipolar quantum Newton's cradle
• Trapping ultracold dysprosium: a highly magnetic gas for dipolar physics
• Doppler cooling and trapping on forbidden transitions
• Dipolar Quantum Mixtures of Erbium and Dysprosium Atoms
• Scissors mode of dipolar quantum droplets of dysprosium atoms
• Quantum Degenerate Mixture of Ytterbium and Lithium Atoms
• Three-path atom interferometry with large momentum separation
• Creation of Quantum-Degenerate Gases of Ytterbium in a Compact 2D-/3D-MOT Setup
• Core-Shell Magneto-Optical Trap for Alkaline-Earth-Metal-Like Atoms
• Advances in precision contrast interferometry with Yb Bose-Einstein condensates
• Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing
• Entanglement of group-II-like atoms with fast measurement for quantum information processing
• Efficient production of a narrow-line erbium magneto-optical trap with two-stage slowing

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• Stimulated Slowing of Yb Atoms on the Narrow ${}^1{S}_0{\to }^3{P}_1$ Transition
• A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms
• Single-atom imaging of ${}^{173}$Yb in optical tweezers loaded by a five-beam magneto-optical trap
• Two-color magneto-optical trapping of ytterbium atoms
• Dissipationless tune-out trapping for a lanthanide-alkali quantum gas mixture