Here we will show polarisation structures that can be designed to accelerate independently from their spatial profile by encoding weighted superpositions of oppositely charged scalar Bessel beams on a Digital Micromirror Device (DMD). We experimentally reconstruct their Stokes vectors illustrating that these also accelerate. Here we make use of static polarisation optics to separate a mode into left- and right-circular states. We outline the role of DMDs in the creation, control and detection of structured light fields.

This video was prepared for the Optics and Photonics 2022 Conference.

We present a novel approach to the accurate and rapid propagation of general 2D wavefronts via linear canonical transforms. An operator splitting approach divides both the crystal and the amplified laser pulse into slices, so that the algorithms remain 2D for an intrinsically 3D problem. The Synchrotron Radiation Workshop (SRW) code uses these matrices to transform the wavefront with physical optics. We are also developing a Python library for linear canonical transforms, which will enable wavefront propagation via more general ABCD matrices. Comparisons with experimental data are presented.

Spatial beam shaping is becoming an essential technique for optimized surface and bulk laser processing with ultrafast laser pulses. In this contribution, we discuss the interest of non-diffractive intensity distributions for transparent material processing but also for surface drilling where specific physical removal mechanisms are in play. Parallel irradiation with arrays of focused spots is also evoked especially in the context of ophthalmology where the drastic speed increase of the laser treatment have led to a change of paradigm of the most widespread surgery worldwide, the cataract surgery.

This conference presentation was prepared for the Laser Beam Shaping XXII conference at Optics + Photonics, 2022.