Luo Meng. Design of Hook-Typed Metasurface for Vortex Beams Generation[J]. Laser & Optoelectronics Progress, 2021, 58(1): 108001
- Laser & Optoelectronics Progress
- Vol. 58, Issue 1, 108001 (2021)
Fig. 1. Schematic of hook-typed hypersurface array. (a) Hook-typed supersurface structure; (b) hook-typed supersurface element; (c) hook-typed hypersurface array
Fig. 2. Light field intensity distribution and phase distribution of emitted light at different transmission distances. (a)(b)
Fig. 3. Coupling efficiency curves of metasurface arrays with different structures. (a) Full-size supersurface structure; (b) supersurface structure with horizontal size enlarged by 1.6 times and longitudinal size remains unchanged
Fig. 4. Phase distribution diagram of different polarization directions. (a)
Fig. 5. Metasurface unit structure of vortex beam when
Fig. 6. Performance distribution diagram of different structures. (a) Phase distribution of mirror hook-typed array at 3000 nm; (b) optical field distribution of vortex beam metasurface at 3000 nm; (c) phase distribution of vortex beam metasurface at 3000 nm
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