Abstract
Space-variant vector optical fields and can be created using both Spatial Light Modulators (SLM’s) and nano-structured waveplates. Radial and Azimuthal polarisations are extreme examples of these interesting states with ring intensity modes and polarisation singularities. Their superpositions result in electric fields displaying logarithmic spirals. We use ultrafast laser induced periodic surface micro-structuring to elucidate and confirm these vector fields when micro-structuring metal surfaces with picosecond laser exposure.
Original language | English |
---|---|
Number of pages | 4 |
Publication status | Published - Nov 2015 |