New paper in OLEN about symmetry and retracing properties of geometric phase gratings and lenses
Our last article is published in the journal Optics & Lasers in Engineering, entitled Study of symmetry and retracing properties of geometric phase gratings and lenses. Here we analyze the symmetry properties of polarization sensitive geometric phase gratings and geometric phase lenses, and compare them with the regular scalar elements.
Experimental results are included that evidence these properties with simple optical arrangements. These include experiments where the gratings are used in a transmission configuration, and others where a mirror is added to analyze a counter-propagated beam.