Doppler-free spectroscopy of metastable Sr atoms using a hollow cathode lamp
| Autor: | Yoshio Torii, Yusuke Hayakawa, Takumi Sato, Takatoshi Aoki, Chika Watanabe |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Atomic Physics (physics.atom-ph) Buffer gas Analytical chemistry FOS: Physical sciences 01 natural sciences Physics - Atomic Physics law.invention 010309 optics symbols.namesake Optics law Laser cooling Metastability 0103 physical sciences Electrical and Electronic Engineering 010306 general physics Spectroscopy Engineering (miscellaneous) Hyperfine structure Hollow-cathode lamp business.industry Atomic and Molecular Physics and Optics Torr symbols business Doppler effect |
| Zdroj: | Applied Optics. 57:1450 |
| ISSN: | 2155-3165 1559-128X |
| DOI: | 10.1364/ao.57.001450 |
| Popis: | 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 the $(5s5p){}^3P_J(J=0,\ 1,\ 2)$ metastable states. We performed frequency-modulation spectroscopy for the $(5s5p){}^3P_0-(5s6s){}^3S_1$, $(5s5p){}^3P_1-(5s6s){}^3S_1$, $(5s5p){}^3P_2-(5s5d){}^3D_2$, and $(5s5p){}^3P_2-(5s5d){}^3D_3$ transitions with sufficient signal to noise ratios for laser frequency stabilization. We also observed the hyperfine transitions of $(5s5p){}^3P_2-(5s5d){}^3D_3$ of $^{87}\mathrm{Sr}$ . This method would greatly facilitate laser cooling of Sr. 5 pages, 9 figures |
| Databáze: | OpenAIRE |
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