High efficient loading of two atoms into a microscopic optical trap by dynamically reshaping the trap with a spatial light modulator

We demonstrated trapping two neutral ⁸⁷Rb atoms in a two site optical ring lattice generated by reflecting a single laser beam from a computer controlled spatial light modulator directly. The ring lattice was transformed into a Gaussian trap by dynamically displaying the holograms animation movie on the modulator. The trapped atoms follow the evolution of traps and move into the same microscopic dipole trap at the end. The detected success rate of this manipulation is larger than 90%. Under imposing the near resonance light, we observed strong light-induce collision between two atoms. ©2010 Optical Society of America

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