電磁波誘發透明與電磁波誘發吸收皆為量子光學中的干涉現象，光拖曳現象則是光在通過某個移動中的介質後，光速會產生拖曳效應，這項技術可以改變光的傳播速度和方向。
而這篇論文主要在研究如何透過各種實驗方法，來增進銣85熱原子之電磁波誘發透明(簡稱 EIT )，以及光拖曳現象的訊噪比，包含了調整 Etalon(法布里-佩羅干涉儀) 效率、調整光路精準度、以及使用各種濾波器提高實驗的效率以及正確性，最後透過艾倫方差來檢驗實驗中是否存在某種不可控的長期噪音，確保訊號頻率穩定性和量測時間之間的關係。
本篇結論為，我們成功透過上述方法優化了實驗結果，將銣85熱原子之 EIT 誤差棒降低，以及提升了光拖曳實驗量測相位差之效率，也降低其誤差。我們也透過分析長期空訊號，確定了示波器本身存在某一種噪音，此噪音會導致實驗誤差明顯提升。最後，我們透過艾倫方差方法來分析各種數據之誤差來源，也提出了一些未來可用以解決問題之方式和可增進之方向。

This study investigates the enhancement of the Signal-to-Noise Ratio (SNR) in the light-dragging effect within the framework of Electromagnetically Induced Transparency (EIT) in Rubidium-85 (Rb-85) atoms. The focus is on improving the experimental techniques to measure the SNR and phase difference better in light-dragging experiments. The optimization strategies include fine-tuning the etalon's efficiency, refining the precision of the optical path, and employing various filters to enhance the accuracy and reliability of the experimental results. Additionally, Allan variance analysis was used to assess and mitigate long-term noise sources, ensuring stable and precise frequency measurements over extended periods. The findings indicate a significant improvement in the quality of EIT signals, leading to a more accurate determination of phase shifts in light-dragging experiments. The study also identifies inherent noise contributions from the oscilloscope, which previously led to experimental discrepancies. Future recommendations include further refinement of noise reduction techniques and exploration of alternative experimental setups.

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