Pengfei Wu, Xiaodie Wang, Jiao Wang, Zhenkun Tan, Zhiyuan Jia. Encoding/Decoding of Composite Vortex Beams with Spaced Orbital Angular Momentums[J]. Acta Optica Sinica, 2023, 43(11): 1126001
- Acta Optica Sinica
- Vol. 43, Issue 11, 1126001 (2023)
Fig. 1. Intensity distributions of 32 composite vortex beams
Fig. 2. Encoding table corresponding to 32 composite vortex beams
Fig. 3. Intensity distributions of single LG vortex beams corresponding to 32 composite vortex beams
Fig. 4. Gradually-changing-period gratings. (a) Gradually-changing-period grating in x-axis direction; (b) gradually-changing-period grating in y-axis direction
Fig. 5. Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in x-axis direction. (a) LG vortex beam |lm=+5,1〉; (b) gradually-changing-period grating along x-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern
Fig. 6. Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in x-axis direction
Fig. 7. Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in y-axis direction. (a) LG vortex beam |lm=+3, 2〉; (b) gradually-changing-period grating along y-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern
Fig. 8. Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in y-axis direction
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