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 MA, 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.
Titolo: | Nonparaxial fields with maximum joint spatial-directional localization. I. Scalar case |
Autori: | |
Data di pubblicazione: | 2006 |
Rivista: | |
Citazione: | Alonso MA, 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. |
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. |
Handle: | http://hdl.handle.net/11590/135108 |
Appare nelle tipologie: | 1.1 Articolo in rivista |