ArticleACS photonics2023
Radially and Azimuthally Pure Vortex Beams from Phase-Amplitude Metasurfaces.
Article in ACS photonics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Dual-mode varifocal Moiré metalens for quantitative phase and edge-enhanced imaging.Nanophotonics (Berlin, Germany) · 2025Article
- Unravelling the nonlinear generation of designer vortices with dielectric metasurfaces.Light, science & applications · 2025Article
- Subcycle modulation of light's orbital angular momentum via a Fourier space-time transformation.Science advances · 2025Article
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6 authors.
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Abstract
To exploit the full potential of the transverse spatial structure of light using the Laguerre-Gaussian basis, it is necessary to control the azimuthal and radial components of the photons. Vortex phase elements are commonly used to generate these modes of light, offering precise control over the azimuthal index but neglecting the radially dependent amplitude term, which defines their associated corresponding transverse profile. Here, we experimentally demonstrate the generation of high-purity Laguerre-Gaussian beams with a single-step on-axis transformation implemented with a dielectric phase-amplitude metasurface. By vectorially structuring the input beam and projecting it onto an orthogonal polarization basis, we can sculpt any vortex beam in phase and amplitude. We characterize the azimuthal and radial purities of the generated vortex beams, reaching a purity of 98% for a vortex beam with
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