铷原子气室偏振方向示意图及微波信号传播

The schematic diagram of polarization direction is shown in Figure 1(b). The main axis of the cylindrical rubidium atomic cell is placed along the z-axis. The detection light and coupling light propagate in the opposite direction along the z-axis, and the polarization direction is along the x-axis and parallel to the horizontal plane. The microwave signal propagates downwards along the y-axis, and the polarization direction is in the x-z plane. The angle between the microwave polarization direction and the laser polarization direction is set to 'θ' ('θ' ∈ [0,90]).