Abstract
We report on the demonstration of Doppler-free spectroscopy of metastable Sr atoms using a hollow cathode lamp (HCL). We employed a custom Sr HCL, which is filled with a mixture of 0.5 Torr Ne and 0.5 Torr Xe as a buffer gas to suppress velocity changing collisions and increase the populations in all of the metastable states. We performed frequency modulation spectroscopy for the , , , and transitions with sufficient signal-to-noise ratios for laser frequency stabilization. We also observed the hyperfine transitions of of . This method would greatly facilitate laser cooling of Sr.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
R. L. Cavasso-Filho, A. Mirage, A. Scalabrin, D. Pereira, and F. C. Cruz
J. Opt. Soc. Am. B 18(12) 1922-1927 (2001)
Takumi Sato, Yusuke Hayakawa, Naohiro Okamoto, Yusuke Shimomura, Takatoshi Aoki, and Yoshio Torii
J. Opt. Soc. Am. B 39(1) 155-159 (2022)
Tzu-Ling Chen, Chang-Yi Lin, Jow-Tsong Shy, and Yi-Wei Liu
J. Opt. Soc. Am. B 30(11) 2966-2969 (2013)