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Proceedings Paper

Investigation of local spatial spectra of Bessel light-beams
Author(s): Vladimir N. Belyi; Nikolai S. Kazak; Nikolai A. Khilo; Andrew Forbes; Piotr I. Ropot
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Paper Abstract

The spectrum of spatial frequencies (SFS) of Bessel beams properties emerging at their spatial localization is investigated. The case, when limiting aperture has a circular shape and a center at any distance from the optical axis, was studied. The Bessel beam local SFS was discovered to be radically changing at shifting the localization zone. Namely, a full ring transforms into a light arcs pair and its angular dimensions monotonically decreases as shift growth. The axis orientation of the spectrum maximal intensity coincides with the diaphragm shifting direction. The numerical modeling results agree well with the experiments.

Paper Details

Date Published: 21 August 2009
PDF: 9 pages
Proc. SPIE 7430, Laser Beam Shaping X, 743011 (21 August 2009); doi: 10.1117/12.824854
Show Author Affiliations
Vladimir N. Belyi, B.I. Stepanov Institute of Physics (Belarus)
Nikolai S. Kazak, B.I. Stepanov Institute of Physics (Belarus)
Nikolai A. Khilo, B.I. Stepanov Institute of Physics (Belarus)
Andrew Forbes, CSIR National Laser Ctr. (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Piotr I. Ropot, B.I. Stepanov Institute of Physics (Belarus)

Published in SPIE Proceedings Vol. 7430:
Laser Beam Shaping X
Andrew Forbes; Todd E. Lizotte, Editor(s)

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