Chinese Optics Letters, Volume. 21, Issue 1, 010006(2023)
Single-layered non-interleaved spin-insensitive metasurfaces for wavefront engineering
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Fig. 1. (a) Unit cell 3D schematic. The period Px = Py is set to be 400 nm. (b) Library of amplitude and phase delays (radian) obtained through the parametric scan for linearly orthogonal polarizations. (c)–(e) Numerically simulated results of phase delays and amplitude of optimized nanobricks.
Fig. 2. Schematic illustration of spin-insensitive meta-hologram. The proposed scheme reconstructs the identical image “NRC” regardless of the spin of the incident and transmitted light.
Fig. 3. (a) Target object and (b) reconstructed CGH. (c) Numerically simulated FDTD results of the proposed spin-insensitive meta-hologram. The identical image “NRC” is reconstructed on all four transmitted CP channels.
Fig. 4. (a) Schematic of spin-insensitive beam deflector. Numerically simulated results of (b) near-field and (c) far-field under RCP and LCP light.
Table 1. Optimized Parametric Values of Basic Nanobricks
View tableView in ArticleTable 1. Optimized Parametric Values of Basic Nanobricks
Nanobrick # 1 2 3 4 5 6 7 Lx (nm) 158 174 250 90 215 153 154 Ly (nm) 138 142 138 218 55 110 130
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Ata Ur Rahman Khalid, Naeem Ullah, Yu Han, Urooj Asghar, Xiaocong Yuan, Fu Feng, "Single-layered non-interleaved spin-insensitive metasurfaces for wavefront engineering," Chin. Opt. Lett. 21, 010006 (2023)
Paper Information
Special Issue: SPECIAL ISSUE ON OPTICAL METASURFACES: FUNDAMENTALS AND APPLICATIONS
Received: Sep. 16, 2022
Accepted: Nov. 11, 2022
Posted: Nov. 14, 2022
Published Online: Feb. 8, 2023
The Author Email: Xiaocong Yuan (xcy@szu.edu.cn), Fu Feng (fufeng@szu.edu.cn)
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