Novel repumping on ${}^3$P${}_0$$\to$${}^3$D${}_1$ for Sr magneto-optical trap and Landé g factor measurement of ${}^3$D${}_1$

Abstract

We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Landé g factor of ${}^3$D${}_1$ of ${}^{88}$Sr. Thanks to a novel repumping scheme with the ${}^3$P${}_2$$\to$${}^3$S${}_1$ and ${}^3$P${}_0$$\to$${}^3$D${}_1$ combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue MOT is enhanced by a factor of 15 with respect to the non-repumping case, and reaches $\sim$1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Landé g factor of ${}^3$D${}_1$ is measured to be 0.4995(88) showing a good agreement with the theoretical value of 0.4988. The results will have an impact on various applications including atom laser, dipolar interactions, quantum information and precision measurements.

arXiv comment8 pages, 9 figures

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Cited by in corpus (4)

• Dicke superradiance in ordered arrays of multilevel atoms
• Atom-Number Enhancement by Shielding Atoms from Losses in Strontium Magneto-Optical Traps
• Optical pumping of ${5s4d}^1{\mathrm{D}}_2$ strontium atoms for laser cooling and imaging
• Absolute frequency measurements on the $5s5p^3$P${}_0\to 5s6d^3$D${}_1$ transition in strontium