233 citations · 1.2k across the 21 of their papers we have counts for
7 papers · 1 filter
Spatially resolved photo ionization of ultracold atoms on an atom chip
S. Kraft, A. Günther, J. Fortágh +1
We report on photo ionization of ultracold magnetically trapped Rb atoms on an atom chip. The atoms are trapped at 5 K in a strongly anisotropic trap. Through a hole in the chip…
Atom counting in ultra-cold gases using photoionisation and ion detection
T. Campey, C. J. Vale, M. J. Davis +5
We analyse photoionisation and ion detection as a means of accurately counting ultra-cold atoms. We show that it is possible to count clouds containing many thousands of atoms with…
Phase coherent splitting of Bose-Einstein condensates with an integrated magnetic grating
A. Günther, S. Kraft, C. Zimmermann +1
We report the phase coherent splitting of Bose-Einstein condensates by means of a phase grating produced near the surface of a micro-electronic chip. A lattice potential with a per…
Atom-optical elements on micro chips
S. Kraft, A. Guenther, P. Wicke +3
We describe the realization of atom-optical elements as magnetic waveguide potentials, beam splitters and gravitational traps on a microchip. The microchip was produced by electrop…
Diffraction of a Bose-Einstein condensate from a Magnetic Lattice on a Micro Chip
A. Guenther, S. Kraft, M. Kemmler +4
We experimentally study the diffraction of a Bose-Einstein condensate from a magnetic lattice, realized by a set of 372 parallel gold conductors which are micro fabricated on a sil…
Combined chips for atom-optics
A. Guenther, M. Kemmler, S. Kraft +3
We present experiments with Bose-Einstein condensates on a combined atom chip. The combined structure consists of a large-scale "carrier chip" and smaller "atom-optics chips", cont…