Axial irradiance distribution throughout the whole space behind an annular aperture

    Authors

    J. E. Harvey;A. Krywonos

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    Optics

    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. (C) 2002 Optical Society of America.

    Journal Title

    Applied Optics

    Volume

    41

    Issue/Number

    19

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    3790

    Last Page

    3795

    WOS Identifier

    WOS:000176671900003

    ISSN

    1559-128X

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