Novel repumping on ³P₀ ³D₁ for Sr magneto-optical trap and Lande g factor measurement of ³D₁

We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Lande g factor of D-3(1) of Sr-88. Thanks to a novel repumping scheme with the P-3(2) -> S-3(1) and P-3(0) -> D-3(1) combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue magneto-optical trap is enhanced by a factor of 15 with respect to the non-repumping case, and reaches similar to 1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Lande g factor of D-3(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.