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We report on sawtooth wave adiabatic passage (SWAP) slowing of bosonic andfermionic dysprosium isotopes by using a 136 kHz wide transition at 626 nm. Abeam of precooled atoms is further decelerated in one dimension by the SWAPforce and the amount of atoms at near zero velocity is measured. We demonstratethat the SWAP slowing can be twice as fast as in a conventional opticalmolasses operated on the same transition. In addition, we investigate theparameter range for which the SWAP force is efficiently usable in our set-up,and relate the results to the adiabaticity condition. Furthermore, we addlosses to the hyperfine ground-state population of fermionic dysprosium duringdeceleration and observe more robust slowing with SWAP compared to slowing withthe radiation pressure force.

Sawtooth wave adiabatic passage slowing of dysprosium