Improved measurement of the hyperfine structure of the laser cooling level $$4f^{12}(^3H_6)5d_{5/2}6s^2$$ 4 f 12 ( 3 H 6 ) 5 d 5 / 2 6 s 2 $$(J=9/2)$$ ( J = 9 / 2 ) in $${}^{169}_{\,\,69}{{\mathrm {Tm}}}$$ 69 169 Tm
Abstract:Improved measurement of the hyperfine structure of the laser cooling level 4f 12 ( 3 H 6 )5d 5/2 6s 2 (J = 9/2) in 169 Tm We report on the improved measurement of the hyperfine structure of 4f 12 ( 3 H6)5d 5/2 6s 2 (J = 9/2) excited state in Tm-169 which is involved in the second-stage laser cooling of Tm. To measure the absolute value of the hyperfine splitting interval we used Doppler-free frequency modulation saturated absorption spectroscopy of Tm atoms in a vapor cell. The sign of the hyperfine constant w… Show more
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