THE RELATIONSHIP BETWEEN THE 2ND-ORDER MOMENT WIDTH AND THE CAUSTIC SURFACE RADIUS OF LASER-BEAMS

Authors
RONCHI L PORRAS MA
Citation
L. Ronchi et Ma. Porras, THE RELATIONSHIP BETWEEN THE 2ND-ORDER MOMENT WIDTH AND THE CAUSTIC SURFACE RADIUS OF LASER-BEAMS, Optics communications, 103(3-4), 1993, pp. 201-204
Citations number
5
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
103
Issue
3-4
Year of publication
1993
Pages
201 - 204
Database
ISI
SICI code
0030-4018(1993)103:3-4<201:TRBT2M>2.0.ZU;2-X
Abstract
It is found that the width of an arbitrary cylindrical symmetric laser beam, defined as twice the mean square deviation of its transversal i ntensity profile, and the radius of its caustic surface coincide withi n the parabolic approximation of the phase. Some examples are given.