The recent development of lattice atom optics is introduced, including atomic optical lattices, atomic magnetic lattices and magneto-optical lattices, and some new results of atomic magnetic lattices and magneto-optical lattices, and some new results on the investigations of magnetic and magneto-optical lattices are reported. Afterwards, some recent progresses of dynamic process of cold atoms and Bose-Einstein-condensed atoms in optical lattices, and coherent propagation and control of quantum states are briefly reviewed. Finally, potential applications of atomic optical lattices, atomic magnetic lattices and magneto-optical lattices in the preparation of photonic crystals and so on are briefly introduced.
We have realized a scheme for continuous loading of a magnetic trap (MT).
52Cr atoms are continuously captured and cooled in a magneto-optical trap (MOT). Optical pumping to a metastable state decouples atoms from the cooling light. Due to their high magnetic moment $(6 {\ensuremath{\mu}}_{B}),$ low-field seeking metastable atoms are trapped in the magnetic quadrupole field provided by the MOT. Limited by inelastic collisions between atoms in the MOT and in the MT, we load
108 metastable atoms at a rate of
108 atoms/s below $100 \ensuremath{\mu}\mathrm{K}$ into the MT. Optical repumping after the loading allows us to realize a MT of ground-state chromium atoms.
We report on the atom optical manipulation of an atom laser beam. Reflection, focusing, and its storage in a resonator are demonstrated. Precise and versatile mechanical control over an atom laser beam propagating in an inhomogeneous magnetic field is achieved by optically inducing spin flips between atomic ground states with different magnetic moment. The magnetic force acting on the atoms can thereby be effectively switched on and off. The surface of the atom optical element is determined by the resonance condition for the spin flip in the inhomogeneous magnetic field. More than 98% of the incident atom laser beam is reflected specularly.