| Title | Dispersion Detection of Optical Clock Transition in Thermal Atomic Beam |
| Authors | Zhang, Xiaogang Xue, Xiaobo Pan, Duo Zhang, Shengnan Zhuang, Wei Chen, Jingbiao |
| Affiliation | Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China. |
| Keywords | electron-shelving detection dispersive detection the Faraday anomalous dispersion optical filter |
| Issue Date | 2013 |
| Citation | 2013 JOINT EUROPEAN FREQUENCY AND TIME FORUM & INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (EFTF/IFC).. |
| Abstract | In order to develop small optical clock for various transportable applications with better stability and accuracy than that of commercial small Cs clock and H-maser clock, our group has proposed a small Ca atomic beam clock scheme with electron-shelving detection. Its potential stability was experimentally demonstrated recently. Here, we first demonstrated the dispersive detection of 657 nm transition via the Faraday rotation effect of 423 nm transition based on a thermal Ca atomic beam, this alternative detection method can effectively detect the clock signal by the ground state atoms after the clock laser interrogation. The Faraday anomalous dispersion optical filter of 423 nm transition can reach a maximum transmission of 10%. With a magnetic field of 84 G, the observed 3.3% of the ground state atoms has been excited to the sigma(+/-) evel of metastable P-3(1)(m=+/- 1) state, which are separated 176.6 MHz to m=0 level. |
| URI | http://hdl.handle.net/20.500.11897/292670 |
| ISSN | 2327-1914 |
| DOI | 10.1109/EFTF-IFC.2013.6702277 |
| Indexed | EI CPCI-S(ISTP) |
| Appears in Collections: | 信息科学技术学院 |
