  Converting spin angular momentum to orbital angular momentum has been shown
to be a practical and efficient method for generating optical beams carrying
orbital angular momentum and possessing a space-varying polarized field. Here,
we present novel liquid crystal devices for tailoring the wavefront of optical
beams through the Pancharatnam-Berry phase concept. We demonstrate the
versatility of these devices by generating an extensive range of optical beams
such as beams carrying $\pm200$ units of orbital angular momentum along with
Bessel, Airy and Ince-Gauss beams. We characterize both the phase and the
polarization properties of the generated beams, confirming our devices'
performance.

Optics