A steady-state magneto-optical trap of fermionic strontium on a narrow-line transition

Abstract

A steady-state magneto-optical trap (MOT) of fermionic strontium atoms operating on the 7.5 kHz-wide ${}^1{\mathrm{S}}_0-{}^3{\mathrm{P}}_1$ transition is demonstrated. This MOT features $8.4\times 10^7$ atoms, a loading rate of $1.3\times 10^7$atoms/s, and an average temperature of 12 $\mu$K. These parameters make it well suited to serve as a source of atoms for continuous-wave superradiant lasers operating on strontium's mHz-wide clock transition. Such lasers have only been demonstrated using pulsed Sr sources, limiting their range of applications. Our MOT makes an important step toward continuous operation of these devices, paving the way for continuous-wave active optical clocks.

arXiv comment11 pages, 7 figures

References in corpus (33)

• Bose-Einstein Condensation of Erbium
• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• Atomic clock performance beyond the geodetic limit
• Hunting for topological dark matter with atomic clocks
• Geodesy and metrology with a transportable optical clock
• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• Gravitational wave detection with optical lattice atomic clocks
• Ultra-stable optical clock with two cold-atom ensembles
• Prospects for a mHz-linewidth laser
• New Limits on Coupling of Fundamental Constants to Gravity Using ${}^{87}$Sr Optical Lattice Clocks
• Magnetic field-induced spectroscopy of forbidden optical transitions with application to lattice-based optical atomic clocks
• Atomic Clocks for Geodesy
• Cavity QED with optically transported atoms
• Interleaved Atom Interferometry for High Sensitivity Inertial Measurements
• Seconds-scale coherence in a tweezer-array optical clock
• Steady-state superradiance with alkaline earth atoms
• First observation with global network of optical atomic clocks aimed for a dark matter detection
• The status of varying constants: a review of the physics, searches and implications
• Laser cooling to quantum degeneracy
• A high-performance optical lattice clock based on bosonic atoms
• Narrow-line magneto-optical trap for erbium
• Frequency measurements of superradiance from the strontium clock transition
• Atomic clocks as a tool to monitor vertical surface motion
• Minimizing the Dick Effect in an Optical Lattice Clock
• Narrow-line Laser Cooling by Adiabatic Transfer
• Optical cooling and trapping of highly magnetic atoms: The benefits of a spontaneous spin polarization
• Continuous guided strontium beam with high phase-space density
• A steady-state magneto-optical trap with 100 fold improved phase-space density
• Fast and dense magneto-optical traps for Strontium
• Laser Cooling by Sawtooth Wave Adiabatic Passage
• Sawtooth wave adiabatic passage slowing of dysprosium
• Laser Cooling with Adiabatic Transfer on a Raman Transition
• Exploration of the magnetic-field-induced $5s5p$~${}^3{P}_0$~-~$5s^2$~${}^1{S}_0$ forbidden transition in bosonic Sr atom

Cited by in corpus (4)

• Modeling of a continuous superradiant laser on the sub-mHz ${}^1$S${}_0\to {}^3$P${}_0$ transition in neutral strontium-88
• Optical pumping of ${5s4d}^1{\mathrm{D}}_2$ strontium atoms for laser cooling and imaging
• Two-color Ytterbium MOT in a compact dual-chamber setup
• A superradiant two-level laser with intrinsic light force generated gain