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- W4309177714 abstract "Abstract By taking advantage of spiral petal-like zone plates, we have recently demonstrated that a spiral element's geometric shape impacts its charge. Keeping it in mind, we aim to control topological charge of a vortex by means of phase modification of an spiral zone plate without transforming its geometrical shape. This is achieved by apodizing a spiral zone plate having p spiral zones with a radial grating with spatial frequency m . Having implemented some radial gratings with different m, we realized that an optical vortex is produced whose topological charge and its handedness are dependent on p and m . Consequently, a constant phase replaces on-axis screw dislocation under the situation that p takes an odd multiples of m. Studies are carried out for both large and small pairs of (p,m) and various gaps between the couple." @default.
- W4309177714 created "2022-11-24" @default.
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- W4309177714 date "2022-11-16" @default.
- W4309177714 modified "2023-10-18" @default.
- W4309177714 title "Cosine-type apodized spiral zone plate to handle the topological charge of a vortex beam" @default.
- W4309177714 doi "https://doi.org/10.21203/rs.3.rs-2264105/v1" @default.
- W4309177714 hasPublicationYear "2022" @default.
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