Umul, Yusuf Z.06.02. Elektronik ve Haberleşme Mühendisliği06. Mühendislik Fakültesi01. Çankaya Üniversitesi2016-06-162025-09-182016-06-162025-09-182010Umul, Y.Z. (2010). Apertured paraxial Bessel beams. Journal of the Optical Society of America A-Optics Image Science and Vision, 27(3), 390-398.1084-75291520-8532https://doi.org/10.1364/JOSAA.27.000390https://hdl.handle.net/20.500.12416/13859Umul, Yusuf/0000-0001-9342-2728The 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. (C) 2010 Optical Society of Americaeninfo:eu-repo/semantics/closedAccessArticle10.1364/JOSAA.27.0003902-s2.0-77949560396