Two-Color Magneto-Optical Trap with Small Magnetic Field for Ytterbium

Abstract

We report a two-color magneto-optical trap (MOT) for ytterbium atoms operating at a low magnetic field gradient down to 2 G/cm where a conventional MOT using the singlet transition (6s^2 1S0 -> 6s6p 1P1) is unable to trap atoms. By simultaneously applying laser light on both the broad-linewidth singlet transition and the narrow-linewidth triplet transition (6s^2 1S0 -> 6s6p 3P1), we load and trap 4.0 x 10^5 atoms directly from an atomic beam at 700 K. In the two-color MOT, the slowing and trapping functions are separately performed by the singlet transition light and the triplet transition light, respectively. The two-color MOT is highly robust against laser power imbalance even at very low magnetic field gradients.

6 pages, 5 figures

References in corpus (8)

• An atomic clock with $10^{-18}$ instability
• Degenerate Fermi Gases of Ytterbium
• Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half
• One-Dimensional Optical Lattice Clock with a Fermionic 171Yb Isotope
• Dysprosium magneto-optical traps
• Production of quantum degenerate mixtures of ytterbium and lithium with controllable inter-species overlap
• Magneto-optical Trapping of Cadmium
• Core-Shell Magneto-Optical Trap for Alkaline-Earth-Metal-Like Atoms

Cited by in corpus (10)

• Time-Reversal-Based Quantum Metrology with Many-Body Entangled States
• Near-Unitary Spin Squeezing in ${}^{171}$Yb
• A steady-state magneto-optical trap with 100 fold improved phase-space density
• Geometrically asymmetric optical cavity for strong atom-photon coupling
• Trapping ${}^{171}$Yb Atoms into a One-Dimensional Optical Lattice with a Small Waist
• Quantum Non-Demolition Measurement on the Spin Precession of Laser-Trapped ${}^{171}$Yb Atoms
• Two-color Ytterbium MOT in a compact dual-chamber setup
• Stimulated Slowing of Yb Atoms on the Narrow ${}^1{S}_0{\to }^3{P}_1$ Transition
• Laser-cooling Cadmium Bosons and Fermions with Near Ultraviolet Triplet Excitations
• Two-color magneto-optical trapping of ytterbium atoms