Hankel-Bessel laser beams.
J Opt Soc Am A Opt Image Sci Vis
; 29(5): 741-7, 2012 May 01.
Article
em En
| MEDLINE
| ID: mdl-22561932
ABSTRACT
An analytical solution of the scalar Helmholtz equation to describe the propagation of a laser light beam in the positive direction of the optical axis is derived. The complex amplitude of such a beam is found to be in direct proportion to the product of two linearly independent solutions of Kummer's differential equation. Relationships for a particular case of such beams-namely, the Hankel-Bessel (HB) beams-are deduced. The focusing of the HB beams is studied.
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MEDLINE
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En
Ano de publicação:
2012
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Article