Spectral shifts in the near zone of a partially coherent field

after passing through a circular aperture

L. Dalil-Essakali, M. Ibn Chaikh, Y. Rochdy, A. Belafhal*

Laboratoire de Physique Moléculaire, Département de Physique,

Université Chouaïb Doukkali, Faculté des Sciences, B.P 20, 24000 El Jadida, Morocco

* Corresponding author. E-mail : Belafhal@ucd.ac.ma

Received 04 January 2001

Abstract

In this paper, we investigate theoretically the spectral shifts in the near zone of a partially coherent field after passing through a circular aperture. The numerical results are presented for Lorentzian and Gaussian profiles of the original spectrum of the source. Various factors which have influenced on the spectral characteristics are also analyzed.

Keywords: Spectral shifts; Partially coherent field; Lorentzian profile; Gaussian profile; Circular aperture.

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