Joaquín García-García

TL;DR: An improved technique for generating the perfect optical vortex is proposed and is notable for the simplicity of its practical realization and high quality of the results.

TL;DR: A new family of partially coherent beams carrying optical vortices is introduced that represents an incoherent superposition of fully coherent orthogonal Bessel modes with the same helical wavefront and is notable for its diffraction-free propagation.

TL;DR: In this paper, the authors extend the concept of perfect optical vortex to the vector case and investigate its focusing properties in the high numerical aperture regime, showing that simultaneous phase encoding of orthogonal components can be realized by means of a 4 f imaging system incorporating a phase only liquid-crystal spatial light modulator whose director axis is rotated 45° with respect to the horizontal axis.

TL;DR: In this article, an improved technique for generating the perfect optical vortex is proposed, notable for the simplicity of its practical realization and the high quality of the results that is applied to an optical trapping experiment.

TL;DR: In this article, a novel technique for vortex generation using the liquid crystal spatial light modulator is proposed, where the vortex radius is chosen independently of the topological charge, and experimental results using LC2002 modulator are shown.