Title

Axial Irradiance Distribution Throughout The Whole Space Behind An Annular Aperture

Abstract

In many photonics and fiber-optics applications, the irradiance distribution in the very near field (z/D < 0.25) behind a circular or annular aperture is of interest. We present the results of detailed calculations of the irradiance distribution throughout the entire space behind an annular aperture. Included as a special case of the annular aperture is the circular aperture and the opaque circular disk. A log–log plot over many orders of magnitude in axial distance provides particular insight. The behavior throughout the Fresnel and Fraunhofer region is well known; however, we pay particular attention to the behavior in the near field. A variety of subtle effects in the near field are presented and discussed. © 2002 Optical Society of America.

Publication Date

7-1-2002

Publication Title

Applied Optics

Volume

41

Issue

19

Number of Pages

3790-3795

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.41.003790

Socpus ID

0036642111 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0036642111

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