Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199326
Type: Artigo de periódico
Title: Measuring Vortex Charge With A Triangular Aperture.
Author: de Araujo, Luís E E
Anderson, Matthew E
Abstract: A triangular aperture illuminated with a vortex beam creates a truncated lattice diffraction pattern that identifies the charge of the vortex. In this Letter, we demonstrate the measurement of vortex charge via this approach for vortex beams up to charge ±7. We also demonstrate the use of this technique for measuring femtosecond vortices and noninteger vortices, comparing these results with numerical modeling. It is shown that this technique is simple and reliable, but care must be taken when interpreting the results for the noninteger case.
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/21403683
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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