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Proceedings Paper

Multiple vortex with different topological charge generated by means of SLM
Author(s): Victor Kotlyar; Alexey Kovalev; Valeria Garbin; Enrico Ferrari; Dan Cojoc
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Paper Abstract

We present techniques to generate multiple vortex with different topological charge by means of diffractive optical elements. Analytical formulae to describe the Fresnel and Fraunhofer diffraction of the Gaussian beam by a helical axicon (HA) are introduced. The relations are presented as a series of the hypergeometric functions. By setting the axicon parameter equal to zero, the solution for the HA changes to that for the spiral phase plate (SPP). The performance of the aforesaid optical elements is tested both through computer simulation and by experiments using a spatial light modulator, in view of optical miroparticle manipulation.

Paper Details

Date Published: 11 September 2006
PDF: 11 pages
Proc. SPIE 6327, Nanoengineering: Fabrication, Properties, Optics, and Devices III, 632710 (11 September 2006); doi: 10.1117/12.680759
Show Author Affiliations
Victor Kotlyar, Samara State Aerospace Univ. (Russia)
Alexey Kovalev, Samara State Aerospace Univ. (Russia)
Valeria Garbin, CNR, Istituto Nazionale per la Fisica della Materia (Italy)
Enrico Ferrari, CNR, Istituto Nazionale per la Fisica della Materia (Italy)
Dan Cojoc, CNR, Istituto Nazionale per la Fisica della Materia (Italy)


Published in SPIE Proceedings Vol. 6327:
Nanoengineering: Fabrication, Properties, Optics, and Devices III
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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