Chinese Optics Letters, 2014, 12 (9): 092701, Published Online: Sep. 1, 2014
Cavity linewidth narrowing by means of electromagnetically induced transparency in Rb with a longitudinal magnetic field 
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Abstract
We demonstrate a method for further reducing the cavity linewidth by the application of a small longitudinal magnetic field on the Rb cell. Because of the magnetic field multiple electromagnetically induced transparencies (EITs) are observed. The center EIT linewidth is measured as a function of the magnetic field. By utilizing the center EIT we narrow the cavity linewidth to 2 MHz which is half of the cavity linewidth without magnetic field.
Haonan Chen, Kang Ying, Yafan Duan, Yueping Niu, Shangqing Gong. Cavity linewidth narrowing by means of electromagnetically induced transparency in Rb with a longitudinal magnetic field[J]. Chinese Optics Letters, 2014, 12(9): 092701.
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