Laser cooling of Yb for isotope separation and precision hyperfine spectroscopy
نویسندگان
چکیده
The hyperfine transitions in the 399 nm S0↔ P1 line in Yb overlap with the transition in Yb. We use transverse laser cooling on this line to selectively deflect Yb atoms from a thermal beam containing both isotopes. We then use an acousto-optic modulator to span the frequency difference between the hyperfine transitions, and hence measure hyperfine structure in the P1 state. Our precise values for the hyperfine constants, A173=57.693±0.006 MHz and B173=609.028±0.056 MHz, improve previous values significantly.
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