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Optical Engineering

Near-field diffraction characteristics of a time-dependent Gaussian-shaped pulsed beam from a circular aperture
Author(s): Hone-Ene Hwang; Gwo-Huei Yang; Pin Han
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Paper Abstract

The diffraction characteristics of a broadband light source from a circular aperture in the near field are theoretically clarified via a prompt and precise mathematical derivation. We provide a rigorous way of treating in the case of a time-dependent Gaussian-shaped pulsed beam passing through a circular aperture and give a more accurate and concrete criteria for judging the timing for the spectral red and blue shifts and the splitting of light distributions. In addition, the distortion of the space-time diffraction intensity distribution is also presented in detail. Hence, the results offer a clear understanding about the Gaussian beam quality of the output of optical resonator in the near-field diffraction.

Paper Details

Date Published: 1 March 2003
PDF: 10 pages
Opt. Eng. 42(3) doi: 10.1117/1.1539518
Published in: Optical Engineering Volume 42, Issue 3
Show Author Affiliations
Hone-Ene Hwang, Chung Chou Institute of Technology (Taiwan)
Gwo-Huei Yang, Chung Chou Institute of Technology (Taiwan)
Pin Han, Dayeh Univ. (Taiwan)


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