Fig. 1. Schematic diagram of the focusing system extracted from Bessel beam homogeneous and non-uniform polarization state modes， （a） phase of the Bessel beam， （b） Bessel intensity distribution plot extracted by modulating the phase

Fig. 2. Bessel beam x-linear polarization and y-linear polarization patterns are extracted

Fig. 3. Bessel beam left-handed circle and right-handed circle polarization modes are extracted

Fig. 4. Extraction results of different polarization modes of Bessel beams with topology number l=0

Fig. 5. Extraction results of different polarization modes of Bessel beams with topology number l=1

Fig. 6. Extraction results of different polarization modes of Bessel beams with topology number l=2

Fig. 7. Schematic diagram of the mode extraction experimental setup

Fig. 8. Results of different polarization modes of Bessel beam at l=0