| Autor: |
孙伟民 Sun Weimin, 刘强 Liu Qiang, 黄立明 Huang Liming, 张军海 Zhang Junhai, 李九兴 Li Jiuxing |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Optical Technique. 38:259-262 |
| ISSN: |
1002-1582 |
| DOI: |
10.3788/gxjs20123803.0259 |
| Popis: |
Theory of all optical cesium magnetometer is based on the optical testing which can be used in weak magnetic field measurement.The character of laser frequency stabilization would affect the magnetometer sensitivity directly.In this work,the principle of dichroic atomic vapor laser lock(DAVLL) is analyzed and compared with the other frequency stabilization methods.The method basing on traditional two-level atom is not applicable to cesium D2 transitional frequency stabilization.The DAVLL spectra of D2 line from ground states of Fg=4 and Fg=3 transitions at different magnetic field are measured.That the optimum magnetic field is about 16mT for two transitions is found out.The dependence of the frequency shift of the zero point of the frequency discrimination curve on the magnetic field strength is discussed.The result show that the magnetic field would make the zero point from ground state Fg =4 transition shift of 6MHz/mT relative to Fg=4→Fe=5 transition and shift of-9MHz/mT for ground Fg=3 transition relative to Fg=3→Fe=4 transition near the optimum field respectively. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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