Fig. 1. Electric field distribution of laser transmitted from plasma of 0.1λ and 150nc comparing with incident laser. (a) Distribution of E_y; (b) distribution of E_z; (c) 1D distribution of transmission electric field; (d) electric field of incident laser

Fig. 2. Variation in degree of polarization and phase difference with target thickness

Fig. 3. Variation in degree of polarization and phase difference with electron density

Fig. 4. Variation in degree of polarization and phase difference with target thickness under different electron densities and laser intensities. (a) 50nc; (b) 100nc; (c) 1×10²⁰ W/cm²; (d) 5×10²⁰ W/cm²

Fig. 5. Variation in degree of polarization and phase difference with twist angle of targets

Fig. 6. Electric field distribution when transimission laser transforms into linear polarization light

Fig. 7. Variation in degree of polarization and phase difference with scale-length of targets

Fig. 8. Electron density of target with twist angle 0° and 45°. (a)(d) xoy plane; (b)(e) xoz plane; (c)(f) 1D distribution of plane center

Fig. 9. Electron velocity distribution of targets. (a) Twist angle is 0°; (b) twist angle is 45°