Erlangen 2022 – scientific programme
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A: Fachverband Atomphysik
A 29: Ultra-cold atoms, ions and BEC (joint session A/Q)
A 29.7: Poster
Thursday, March 17, 2022, 16:30–18:30, P
Trapping Ions And Ion Coulomb Crystals In Optical Lattices — •Daniel Hoenig1, Fabian Thielemann1, Joachim Welz1, Wei Wu1, Thomas Walker1, Leon Karpa2, Amir Mohammadi1, and Tobias Schaetz1 — 1Albert-Ludwigs-Universität, Freiburg, Deutschland — 2Leibniz-Universität, Hannover, Deutschland
Optically trapped ion Coulomb crystals are an interesting platform for quantum simulations due to the long range of the Coulomb interaction as well as the state dependence of the optical potential. Optical lattices expand the possible application of this platform by trapping the ions in seperate potential wells as well as giving optical confinement along the axis of the beam. In the past we reported the succesfull trapping of a single ion in a one dimensional optical lattice as well as of ion coulomb crystals in a single beam optical dipole trap.
In this Poster, we present recent advancements in trapping of Ba138+ ions in an one dimensional optical lattice at a wavelength of 532nm and report the first successfull trapping of small ion coulomb crystals (N≤ 3) in a lattice. We compare trapping results between the lattice and a single-beam optical dipole trap and investigate the effect of axial electric fields on the trapping probability of a single ion to demonstrate the axial confinement of the ion by the lattice structure. Additionally we show preliminary results on the measurement of the vibrational modes of a single ion in the optical lattice.