Martínez-Herrero, RosarioJuvells Prades, IgnacioCarnicer González, Arturo2014-12-182014-12-182013-06-150146-9592https://hdl.handle.net/2445/60863A method to evaluate the physical realizability of an arbitrary three-dimensional vectorial field distribution in the focal area is proposed. A parameter that measures the similarity between the designed (target) field and the physically achievable beam is provided. This analysis is carried out within the framework of the closest electromagnetic field to a given vectorial function, and the procedure is applied to two illustrative cases.3 p.application/pdfeng(c) Optical Society of America, 2013Òptica físicaCamps electromagnèticsPolarització (Llum)FotònicaPhysical opticsElectromagnetic fieldsPolarization (Light)Photonicsinfo:eu-repo/semantics/article6297992014-12-18info:eu-repo/semantics/openAccess