本論文題目為研究極化銫原子氣體之光磁特性，我們採用內裝有銫原子的玻璃容器作為光學腔，光學腔為一圓柱體，經由加熱裝置的作用，可以使的容器內之銫原子變成氣體，再用波長為894 nm的圓偏振雷射光射入，加熱溫度控制在54 ℃附近，我們以線圈提供一磁場，並且與光行進方向呈45度之夾角，當給予的磁場大小與屏蔽桶內的殘留磁場相抵消成為零磁場的情況下會產生零磁場吸收現象，另外再給予一高頻交流磁場，方向與光方向及主磁場方向垂直，最後再用光偵測器，觀察光穿透過銫原子蒸氣玻璃容器後之光強度變化大小觀察在交流磁場下的共振吸收，找出磁場影響光功率改變量的光磁特性，除此之外我們利用在觀察到零場吸收時，同時調變波長並觀察不同溫度下的吸收變化量以及可以產生吸收的波長範圍，因此了解這些光磁特性。

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