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Proceedings Paper

Generation of a spiral wave using amplitude masks
Author(s): Marcelino Anguiano-Morales; Didia P. Salas-Peimbert; Gerardo Trujillo-Schiaffino
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Paper Abstract

Optical beams of Bessel-type whose transverse intensity profile remains unchanged under free-space propagation are called nondiffracting beams. Experimentally, Durnin used an annular slit on the focal plane of a convergent lens to generate a Bessel beam. However, this configuration is only one of many that can be used to generate nondiffracting beams. The method can be modified in order to generate a required phase distribution in the beam. In this work, we propose a simple and effective method to generate spiral beams whose intensity remains invariant during propagation using amplitude masks. Laser beams with spiral phase, i.e., vortex beams have attracted great interest because of their possible use in different applications for areas ranging from laser technologies, medicine, and microbiology to the production of light tweezers and optical traps. We present a study of spiral structures generated by the interference between two incomplete annular beams.

Paper Details

Date Published: 2 November 2011
PDF: 5 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801168 (2 November 2011); doi: 10.1117/12.903062
Show Author Affiliations
Marcelino Anguiano-Morales, Instituto Tecnológico de Chihuahua (Mexico)
Didia P. Salas-Peimbert, Instituto Tecnológico de Chihuahua (Mexico)
Gerardo Trujillo-Schiaffino, Instituto Tecnológico de Chihuahua (Mexico)

Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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