Diffuse Laser Cooling Based on the $6{\mathrm{P}}_{3/2}$ Excited State of Rubidium Atoms via 420 nm Blue Light

Jia Zhang, Xun Gao Zheng Xiao, Xiaolei Guan Ruihang Chen +2

To date, the laser cooling of rubidium atoms has inevitably relied on 780 nm cooling light corresponding to the first excited state $5{\mathrm{P}}_{3/2}$. Surprisingly, we demonstrat…