Magneto-optical trap for thulium atoms Academic Article uri icon

abstract

  • Thulium atoms are trapped in a magneto-optical trap using a strong transition at 410 nm with a small branching ratio. We trap up to 7×104 atoms at a temperature of 0.8(2)mK after deceleration in a 40-cm-long Zeeman slower. Optical leaks from the cooling cycle influence the lifetime of atoms in the magneto-optical trap which varies between 0.3 and 1.5 s in our experiments. The lower limit for the leaking rate from the upper cooling level is measured to be 22(6) s - 1. The repumping laser transferring the atomic population out of the F=3 hyperfine ground-state sublevel gives a 30% increase for the lifetime and the number of atoms in the trap. © 2010 The American Physical Society.

author list (cited authors)

  • Sukachev, D., Sokolov, A., Chebakov, K., Akimov, A., Kanorsky, S., Kolachevsky, N., & Sorokin, V

complete list of authors

  • Sukachev, D||Sokolov, A||Chebakov, K||Akimov, A||Kanorsky, S||Kolachevsky, N||Sorokin, V

publication date

  • January 1, 2010 11:11 AM