Figure 4.
Comparisons of the polarization patterns and the 3D light-induced iso-magnetization surfaces for the case of m=2. Top: polarization distributions of the 4π focusing system (a) and the single-objective focusing system (b). Bottom: 3D iso-magnetization surfaces located at 50% of the maximum magnetization of the 4π focusing system (c) and the single-objective focusing system (d).