María and Ignacio published a new paper in Optics Letters entitled «Nondiffracting Bessel beams with polarization state that varies with propagation distance«. Link

In this work we use a reflective geometry where a single parallel-aligned spatial light modulator device is used to spatially modulate two orthogonal linear polarizations with two axicon phase profiles. Then, by adding an extra phase retardation radial profile between these linear states, we are able to modulate the state of polarization along the line focus of the axicon. We provide experimental results that demonstrate the polarization axial control with zero-order and higher order Bessel beams.

The work was developed during our stay at SDSU, in collaboration with our friends Jeff Davis, Katie Badham, and Don Cottrell.

The first day of publication, the paper was the most downloaded paper in Optics Letters, and it was among the Top10 downloads in Optics Letters in the month of November 2015!