title: Apertured paraxial Bessel beams.
abstract: The paraxial Bessel beam is obtained by applying an approximation in the wavenumbers. The scattering of the beams by a circular aperture in an absorbing screen is investigated. The scattered fields are expressed in terms of the Fresnel integrals by evaluating the Kirchhoff diffraction integral in the paraxial approximation. The results are examined numerically.
authors.affiliation: Cankaya University, Electronic and Communication Department, Oğretmenler Cad., No. 14, Yüzüncü Yil, Balgat, Ankara 06530, Turkey. yziya@cankaya.edu.tr
authors.forename: Yusuf Z
authors.initials: YZ
authors.lastname: Umul