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Uncertainty principle for axial power content of highly focused fields
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In the analysis of the on-axis intensity for a highly focused optical field, it is highly desirable to deal with effective relations aimed at characterizing the field behavior in a rather simple fashion. Here, a novel and adequate measure for the size of the region where the axial power content mainly concentrates is proposed on the basis of an uncertainty principle. Accordingly, a meaningful relationship is provided for both the spread of the incident beam at the entrance of the highly focused optical system and the size of the region where the on-axis power mainly concentrates.
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MARTÍNEZ-HERRERO, Rosario, et al. Uncertainty principle for axial power content of highly focused fields. Optics Express. 2020. Vol. 28, num. 20, pags. 29676-29690. ISSN 1094-4087. [consulted: 9 of September of 2026]. Available at: https://hdl.handle.net/2445/173366