The characteristics of Stark tuned Faraday anomalous dispersion optical filter at 459 nm
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摘要: 为了设计性能优良的滤光器,对铯原子459nm斯塔克调谐型法拉第反常色散滤光器(FADOF)的滤光特性进行了分析与讨论。计算了铯原子459nm斯塔克调谐型FADOF(S-FADOF)透射谱,并与同等条件下铯原子459nm FADOF透射谱进行了比较;分析了不同磁场强度和气室温度对铯原子459nm S-FADOF透射谱的影响;给出了铯原子459nm S-FADOF透射谱中心频率频移量随电场变化的理论曲线。结果表明,电场的引入并不改变其透射谱结构,仅使中心频率发生频移,并且随外加电场强度的增加,频移量不断增大。此项研究在星潜通信,海洋遥感等领域有潜在应用价值。Abstract: The characteristics of cesium Stark tuned Faraday anomalous dispersion optical filter(S-FADOF) at 459nm are theoretically analyzed.The transmission spectrum of cesium S-FADOF at 459nm is calculated,then compared with that of cesium FADOF at 459nm in the same condition.The influence of different magnetic strength and temperature on the transmission spectrum of cesium S-FADOF at 459nm is analyzed.The calculated curve of the central frequency shift of the transmission spectrum of cesium S-FADOF at 459nm as a function of electric field is also given.The results show that external electric field doesn't change the structure of transmission spectrum and only causes the central frequency shift which increases with the enhancement of the electric field.
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Keywords:
- spectroscopy /
- atomic filter /
- Stark effect /
- Zeeman effect /
- cesium
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