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1 October 2024 Cylindrically-symmetric collimated beam shaping using non-imaging metasurfaces
Kirstine E. S. Nielsen, Xavier Zambrana-Puyalto, Rafael de la Fuente Herrezuelo, Villads Egede Johansen, Søren Raza
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Proceedings Volume 13132, Nonimaging Optics: Efficient Design for Illumination and Concentration XIX; 1313208 (2024) https://doi.org/10.1117/12.3027738
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
Non-imaging freeform lenses are a convenient tool for intensity and beam shaping processes due to their highly customizable designs and high efficiency. The surface curvature of these lenses are designed to ensure optimal transport of energy from the light source to a target plane, and require increasingly precise fabrication to attain the desired efficiency in complicated beam shaping cases. Metasurfaces have the ability to impart any phase profile, thus mimicking any surface curvature, without additional fabrication challenges. Here we present a theoretical framework based on the optimal transport formulation from non-imaging optics, for calculating the two dimensional phase profile of a metasurface for applications with normally incident light and cylindrical symmetry.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Kirstine E. S. Nielsen, Xavier Zambrana-Puyalto, Rafael de la Fuente Herrezuelo, Villads Egede Johansen, and Søren Raza "Cylindrically-symmetric collimated beam shaping using non-imaging metasurfaces", Proc. SPIE 13132, Nonimaging Optics: Efficient Design for Illumination and Concentration XIX, 1313208 (1 October 2024); https://doi.org/10.1117/12.3027738
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KEYWORDS
Beam shaping
Light sources and illumination
Beam propagation method
Freeform optics
Nonimaging optics
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