2026-04-05T11:26:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/2250682025-12-20T16:03:08Zcom_2072_1057col_2072_478821col_2072_478917

Analysis of the behavior of highly focused, radially coherent Dirichlet sources Martínez-Herrero, Rosario Aviñoá, Marcos Carnicer González, Arturo Camps electromagnètics Òptica física Polarització (Llum) Electromagnetic fields Physical optics Polarization (Light) We introduce a novel class of electromagnetic light sources that exhibit radial coherence, a degree of coherence characterized by a Dirichlet kernel, and with radial or azimuthal polarization. We provide a mathematical description of the spectral irradiance, 3D degree of polarization, and electromagnetic degree of coherence for such sources when they are focused using a high numerical aperture microscope lens. Since the incident beam can be described as a modal expansion, we also consider how the number of terms affects the behavior of the field in the focal area. The formal analysis is complemented with numerical simulations. The study reveals interesting properties in the focal area, despite the focused beam is no longer radially coherent. 2025-12-20T16:03:08Z 2025-12-20T16:03:08Z 2025-12-19T16:17:43Z 2025-12-19T16:17:43Z 2024-02-15 2025-12-19T16:17:44Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/2445/225068 Reproducció del document publicat a: https://doi.org/10.1016/j.optlastec.2024.110720 Optics and Laser Technology, 2024, vol. 174 https://doi.org/10.1016/j.optlastec.2024.110720 cc-by-nc-nd (c) Martínez-Herrero, Rosario, et al., 2024 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Elsevier B.V.