Kejian WANG, Dacheng ZHANG, Yunxiao YANG, Xuyang LIU, Xuan YU, Jianting LEI, Shaofeng ZHANG, Jiangfeng ZHU. Study on Detection Method of Topological Charge of Femtosecond Vortex Beams[J]. Acta Photonica Sinica, 2021, 50(10): 1026001
- Acta Photonica Sinica
- Vol. 50, Issue 10, 1026001 (2021)
Fig. 1. The simulation results of the diffraction of vortex beams with different pulse widths
Fig. 2. The diffraction results of vortex beams with different sectorial screen angles
Fig. 3. The experimental setup for vortex beams modulation and detection
Fig. 4. The experimental diffraction results of vortex beams with different pulse widths
Fig. 5. The spectra of lasers with different pulse widths
Fig. 6. Diffraction results of continuous and femtosecond vortex beams with different topological charges
Fig. 7. The experimental diffraction results of vortex beams with different sectorial screen angles
Fig. 8. The experimental modulation and detection results of vortex beams with different oscillators
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