Hi-integrity micro-optical elements using stitch free fabrication applying femtosecond laser-based 3D nanolithography

It is shown where multiphoton polymerization can outpace standard stereolithography in terms of throughput while still maintaining superior resolution and higher degree of freedom in terms of printable geometries. All these elements are produced in a single printing step showing the potency of 3DLL as a straight-forward and relatively simple technology to produce micro-optics at these sizes. Lens focusing close to diffraction limited spot (w0~2.5 μm) and well visible prism dispersion are observed