Generation of Bessel beam arrays through Dammann gratings.
Appl Opt
; 51(9): 1375-81, 2012 Mar 20.
Article
em En
| MEDLINE
| ID: mdl-22441485
ABSTRACT
In this work we apply the Dammann grating concept to generate an equal-intensity square array of Bessel quasi-free diffraction beams that diverge from a common center. We generate a binary phase mask that combines the axicon phase with the phase of a Dammann grating. The procedure can be extended to include vortex spiral phases that generate an array of optical pipes. Experimental results are provided by means of a twisted nematic liquid crystal display operating as a binary π phase spatial light modulator.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Refratometria
/
Desenho Assistido por Computador
/
Dispositivos Ópticos
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Espanha