Space-variant retarders (SVR) fabrication is based on the inscription of self-organized nanogratings inside fused silica glass using a femtosecond laser.
Rapid prototyping enables the adaptation of every element to the specific end-user needs (like fast axis and retardance distribution, clear aperture, substrate shape, and thickness) without high additional development costs.
SVRs are space-variant retardance plates that enable tailored control of spatial polarization for high-power lasers as well.
Converts linear polarization to radial or azimuthal polarization and circular polarization to an optical vortex
Converts linear polarization to higher-order polarization patterns.
Transforms Gaussian beam into a Bessel-Gauss beam
Acts as a space-variant transmission filter and transforms Gaussian beam to a flat-top beam.
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