Study and Optimization of CPT Resonance Parameters in 87 Rb/Ar/Ne Microcells Aimed for Application in Metrology
| Autor: | Y. Masian, Vladimir L Velichansky, A. Sivak, D. Sevostianov, V.V. Vassiliev |
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| Jazyk: | angličtina |
| Předmět: |
education.field_of_study
Materials science Frequency drift Population chemistry.chemical_element Resonance light shift Physics and Astronomy(all) Frequency standard atomic frequency standart Laser law.invention Rubidium Neon rubidium chemistry law temperature frequency shift CPT Atomic physics education Frequency modulation |
| Zdroj: | Physics Procedia. :252-256 |
| ISSN: | 1875-3892 |
| DOI: | 10.1016/j.phpro.2015.08.359 |
| Popis: | The paper shows the presents results of studies of small-size rubidium cells with argon and neon buffer gases, produced by a patent pended technique of laser welding [Fishman et al. (2014)]. Cells were designed for miniature frequency standard. Temperature dependence of the frequency of the coherent population trapping (CPT) resonance was measured and used to optimize the ratio of partial pressures of buffer gases. The influence of duration and regime of annealing on the CPT-resonance frequency drift was investigated. The parameters of the FM modulation of laser current for two cases which correspond to the highest amplitude of CPT resonance and to the smallest light shifts of the resonance frequency were determined. The temperature dependences of the CPT resonance frequency were found to be surprisingly different in the two cases. A non-linear dependence of CPT resonance frequency on the temperature of the cell with the two extremes was revealed for one of these cases. |
| Databáze: | OpenAIRE |
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