Hanle Detection for Optical Clocks

Figure 3

The detected fluorescence signal in different polarization orientation of the 423 nm detection laser with zero magnetic field. The upper blue fluorescence signal is collected when the polarization orientation of the 423 nm laser is in the -direction; the lower red fluorescence signal is collected when the polarization orientation of the 423 nm laser is in the -direction; The upper inset is the detected fluorescence signal as the polarization orientation of the 423 nm laser is in the -direction while the magnetic field is 121.6 G. The lower inset is the detected fluorescence signal as the polarization orientation of the 423 nm laser is in the -direction while the magnetic field is 121.6 G.