Efficient, Tightly-Confined Trapping of 226Ra

Abstract

We demonstrate a technique for transferring ${}^{226}$Ra atoms from a 3-dimensional magneto-optical-trap (MOT) into a standing wave optical dipole trap (ODT) in an adjacent chamber. The resulting small trapping volume (120 $\mu$m in diameter) allows for high control of the electric and magnetic fields applied to the atoms. The atoms are first transferred to a traveling-wave optical dipole trap, which is then translated 46 cm to a science chamber. The atoms are subsequently transferred into an orthogonal standing-wave ODT by application of a 1-dimensional MOT along the traveling-wave axis. For each stage, transfer efficiencies exceeding 60% are demonstrated.

References in corpus (6)

• Improved limit on the permanent electric dipole moment of 199Hg
• Energy distribution and cooling of a single atom in an optical tweezer
• Laser-trapping of Ra-225 and Ra-226 with repumping by room temperature blackbody radiation
• Calculation of energy levels and transition amplitudes for barium and radium
• Long range transport of ultra cold atoms in a far-detuned 1D optical lattice
• Sensitivity test of a blue-detuned dipole trap designed for parity non-conservation measurements in Fr

Cited by in corpus (11)

• Improved limit on the ${}^{225}$Ra electric dipole moment
• Parity and Time-Reversal Violation in Atomic Systems
• Dicke superradiance in ordered arrays of multilevel atoms
• Measurement of the Electric Dipole Moment of ${}^{171}$Yb Atoms in an Optical Dipole Trap
• Born-Oppenheimer study of two-component few-particle systems under one-dimensional confinement
• Electric dipole moment of ${}^{225}$Ra due to P- and T-violating weak interactions
• Compilation of spectroscopic data of Radium (Ra I and Ra II)
• Magic and tune-out wavelengths for atomic francium
• A decay microscope for trapped neon isotopes
• Offline trapping of ${}^{221}$Fr in a magneto-optical trap from implantation of an ${}^{225}$Ac ion beam
• Implementing an electronic sideband offset lock for precision spectroscopy in radium