In paraxial optics, the spatial and angular localization of a beam are usually characterized through second moments in intensity. For these measures, Gaussian beams have the property of achieving a minimum angular spread for a given spatial spread (or beam waist). For wide-angle fields, however, the standard measures of spatial and angular localization become inappropriate, and new definitions must be used. Previously proposed definitions [J. Opt. Soc. Am. A 17, 2391 (2000)] are adopted, and the scalar monochromatic wave fields that achieve a minimum angular spread for a given spatial spread are found. (C) 2006 Optical Society of America.

Alonso, M.a., Borghi, R., Santarsiero, M. (2006). Nonparaxial fields with maximum joint spatial-directional localization. I. Scalar case. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION, 23(3), 691-700 [10.1364/JOSAA.23.000691].

Nonparaxial fields with maximum joint spatial-directional localization. I. Scalar case

BORGHI, Riccardo;
2006-01-01

Abstract

In paraxial optics, the spatial and angular localization of a beam are usually characterized through second moments in intensity. For these measures, Gaussian beams have the property of achieving a minimum angular spread for a given spatial spread (or beam waist). For wide-angle fields, however, the standard measures of spatial and angular localization become inappropriate, and new definitions must be used. Previously proposed definitions [J. Opt. Soc. Am. A 17, 2391 (2000)] are adopted, and the scalar monochromatic wave fields that achieve a minimum angular spread for a given spatial spread are found. (C) 2006 Optical Society of America.
Alonso, M.a., Borghi, R., Santarsiero, M. (2006). Nonparaxial fields with maximum joint spatial-directional localization. I. Scalar case. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION, 23(3), 691-700 [10.1364/JOSAA.23.000691].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/135108
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