Abstract

We present experimental results demonstrating strong velocity-distribution modification in a specific atomic state hyperfine split levels. These results show that the velocity of a specific state can using optical pumping between be defined within 6%, corresponding to a local temperature of 1 K. The velocity-specific-state selection is accomplished by using a nearly effusive atomic beam of sodium and a single frequency-stabilized dye laser.

© 1983 Optical Society of America

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