Losses of thulium atoms from optical dipole traps operating at 532 and 1064 nm

Abstract

Recently thulium has been condensed to Bose-Einstein condensate. Machine learning was used to avoid a detailed study of all obstacles making cooling difficult. This paper analyses the atomic loss mechanism for the 532 nm optical trap, used in the Bose-condensation experiment, and compares it with the alternative and more traditional micron-range optical dipole trap. We also measured the scalar and tensor polarizability of thulium at 1064 nm and was found to be $167\pm 25$ a.u. ($275\pm 41\times {10}^{-41}\text{F }\cdot {\text{m}}^{\text{2}}$) and $-4\pm 1$ a.u. ($7\pm 2\times {10}^{-41}\text{F }\cdot {\text{m}}^{\text{2}}$).

References in corpus (8)

• Three-body recombination at large scattering lengths in an ultracold atomic gas
• A strontium optical lattice clock with $1\times 10^{-17}$ uncertainty and measurement of its absolute frequency
• Anisotropic polarizability of erbium atoms
• Anisotropic dependence of tune-out wavelength near Dy 741-nm transition
• Light assisted collisions in ultra-cold Tm atoms
• Light Assisted Collisional Loss in a ${}^{85/87}$Rb Ultracold Optical Trap
• Characterizing the temperature dependence of Fano-Feshbach resonances of Ultracold Polarized Thulium
• Microwave coherent spectroscopy of ultracold thulium atoms

Cited by in corpus (4)

• Bose-Einstein condensate as a diagnostic tool for an optical lattice formed by 1064 nm laser light
• Transport of magnetically sensitive atoms in a magnetic environment
• Tune-out wavelength for the thulium atom near 576 nm
• Factor of 1000 suppression of the depolarization rate in ultracold thulium collisions