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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/118364
Synthesis of highly focused fields with circular polarization at any transverse plane
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We develop a method for generating focused vector beams with circular polarization at any transverse plane. Based on the Richards-Wolf vector model, we derive analytical expressions to describe the propagation of these set of beams near the focal area. Since the polarization and the amplitude of the input beam are not uniform, an interferometric system capable of generating spatially-variant polarized beams has to be used. In particular, this wavefront is manipulated by means of spatial light modulators displaying computer generated holograms and subsequently focused using a high numerical aperture objective lens. Experimental results using a NA=0.85 system are provided: irradiance and Stokes images of the focused field at different planes near the focal plane are presented and compared with those obtained by numerical simulation.
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MALUENDA NIUBÓ, David, et al. Synthesis of highly focused fields with circular polarization at any transverse plane. Optics Express. 2014. Vol. 22, num. 6, pags. 6859-6867. ISSN 1094-4087. [consulted: 7 of October of 2026]. Available at: https://hdl.handle.net/2445/118364