Skip to main content

Angular criterion to distinguish between Fraunhofer and Fresnel diffraction

Buy Article:

$28.45 plus tax (Refund Policy)


The distinction between Fresnel and Fraunhofer diffraction is an essential condition for the accurate analysis of diffracting structures. In this paper we propose a criterion based on the angle subtended by the first minimum of the diffraction pattern from the centre of the diffracting aperture. The determination of the minimum of the diffraction pattern is the crucial point to assure the accuracy of the criterion. Therefore, the applicability of adequate thresholds for detection is discussed. The criterion is also generalized by expressing it in terms of the number of Fresnel zones delimited by the aperture. Simulations are reported to illustrate the feasibility of the criterion.

Document Type: Research Article


Affiliations: 1: Institute of Physics, Universidad de Antioquia, A.A. 1226, Medellín, Colombia 2: AS-ICTP Regular Associate, Physics School, Universidad Nacional de Colombia Sede Medellín, A.A. 3840, Medellín, Colombia 3: Department of Physics, Università degli Studi di Bologna and Istituto Nazionale per la Fisica della Materia, INFM, Viale B. Pichat 6/2, I-40127 Bologna, Italia

Publication date: 2004-12-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more