Abstract

We have performed degenerate four-wave mixing experiments with cryogenically cooled atomic ytterbium. We use buffer-gas cooling to prepare high optical density samples at a temperature of 5 K, cold enough to resolve the different isotopes and hyperfine transitions. We observe four-wave mixing with cross-polarized pump and probe beams. The four-wave mixing is strongly enhanced when the laser is closely detuned from the S01(F=1/2)P11(F=1/2) transition of the Yb171 (I=1/2) isotope.

© 2012 Optical Society of America

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