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Continuous, Velocity-Controlled Three-Dimensionally Laser-Cooled Atom Beam Source with Low Fluorescence
Continuous, Velocity-Controlled Three-Dimensionally Laser-Cooled Atom Beam Source with Low Fluorescence
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机译:连续,速度控制的三维激光冷却原子束源,低荧光
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摘要
Method and apparatus for producing a cooled atom beam suitable for use applications requiring cold atoms. A two-stage cooling process is employed in which the atoms in the atom beam are cooled in two, spatially separated regions of a cooling apparatus, wherein the atoms are first cooled in two dimensions by two counterpropagating laser beams under a magnetic field and then are cooled in three dimensions by means of an optical molasses, where the power, frequency, and magnetic fields are tuned to obtain a continuous beam of three-dimensionally cooled atoms having a controllable velocity distribution, very low decoherence, and low background atomic gas loss.
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