126237 20241125101136.0 doi 10.1016/j.optlastec.2023.109491 sideral 133643 ART-2023-133643 eng Soria-Garcia, Angela Fourier series diffractive lens with extended depth of focus 2023 Access copy available to the general public Unrestricted Angular diffractive lenses have been proven to achieve a narrow beam waist with a long depth of focus. We generalize these type of lenses by defining the angular distribution of the focal length as a Fourier series. The Fourier coefficients of the lens are optimized, using Particle Swarm Optimization algorithm, to minimize the beam width and increase its uniformity for a given depth of focus. In order to obtain a fast simulation during the optimization process, we used Chirp Z-transform algorithm. Finally, we performed an experimental verification of the results using a Spatial Light Modulator. The Fourier series diffractive lens presents a more uniform and narrower beam than previous angular lenses, in both simulations and experiments. These results may find applications in the design of contact and intraocular lenses with extended depth of focus, laser focusing and imaging systems. info:eu-repo/grantAgreement/ES/MICINN/PID2019-105918GB-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2021-122486OA-I00 info:eu-repo/grantAgreement/ES/MICINN/RTC-2019-007113-3 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.6 2023 OPTICS 21 / 119 = 0.176 2023 Q1 T1 PHYSICS, APPLIED 45 / 179 = 0.251 2023 Q2 T1 0.878 2023 Atomic and Molecular Physics, and Optics 2023 Q1 Electronic, Optical and Magnetic Materials 2023 Q1 Electrical and Electronic Engineering 2023 Q1 8.5 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sanchez-Brea, Luis Miguel del Hoyo, Jesus Torcal-Milla, Francisco Jose Universidad de Zaragoza (orcid)0000-0003-3178-5253 Gomez-Pedrero, Jose Antonio 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 164 (2023), 109491 [8 pp.] Opt. Laser Technol. Optics and Laser Technology 0030-3992 2912834 http://zaguan.unizar.es/record/126237/files/texto_completo.pdf Versión publicada 2880294 http://zaguan.unizar.es/record/126237/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126237 articulos driver 2024-11-22-12:00:57 ARTICLE