Descripción de la evolución espacial de un haz gaussiano difractado por una red radial mediante la Difracción Geométrica Local
- Gonzáles Moreno, Rubén
- Alonso Fernández, José
- Bernabeu Martínez, Eusebio
ISSN: 2171-8814
Ano de publicación: 2004
Volume: 37
Número: 1
Páxinas: 7-10
Tipo: Artigo
Outras publicacións en: Óptica pura y aplicada
Resumo
In this work we have proposed a numerical solution based on local geometrical diffraction model and Gaussian ray-bundles generated by means of the Monte Carlo method, for the study of the Gaussian beams diffracted by a radial grating. We have compared it with numerical models that give shape to the solutions proposed for this problem in previous works. The result of this comparison is an excellent agreement between the numerical models. An exception has been shown in the case of an incident beam with the waist in the focal region of gratings with smaller radius and a large number of lines. The cause of this dissent is that the aberrations have been taken into account by the local geometrical diffraction.