光学学报, 2016, 36 (11): 1127001, 网络出版: 2016-11-08
基于V型电磁诱导透明效应的腔衰荡光谱研究
Cavity Ringdown Spectroscopy Based on V-Type Electromagnetically Induced Transparency
量子光学 电磁诱导透明效应 腔衰荡光谱 衰荡时间 光泵效应 quantum optics electromagnetically induced transparency cavity ringdown spectroscopy ringdown time optical pumping effect
摘要
理论分析了腔内电磁诱导透明效应(EIT)对腔衰荡光谱(CRDS)的影响，提出了利用V型三能级EIT中的光泵效应提高探测光透过率从而改善CRDS性能的方案。实验中采用铷87原子的D2线构建了V型三能级EIT，在适当的控制光强度下实现了CRDS衰荡时间及其灵敏度的改善，使灵敏度增强至原有灵敏度的1.45倍。
Abstract
The influence of electromagnetically induced transparency (EIT) on the cavity ringdown spectroscopy (CRDS) is analyzed theoretically. Utilizing the optical pumping effect of EIT in a three-level V-type structure which can increase the transmittance of the EIT medium, we propose a program to improve the CRDS performance. In the experiment, a V-type EIT is constructed with the D2 line of 87Rb, and the ring-down time and sensitivity of the CRDS system are improved under appropriate light intensity. Finally, the ringdown sensitivity is enhanced to 1.45 times of the original value.
吉慕尧, 段亚凡, 钮月萍, 龚尚庆. 基于V型电磁诱导透明效应的腔衰荡光谱研究[J]. 光学学报, 2016, 36(11): 1127001. Ji Muyao, Duan Yafan, Niu Yueping, Gong Shangqing. Cavity Ringdown Spectroscopy Based on V-Type Electromagnetically Induced Transparency[J]. Acta Optica Sinica, 2016, 36(11): 1127001.
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