Femtosecond laser-induced two-photon polymerization: A new avenue towards microoptics and micromechanics

Various polymer micro-optical and mechanical components with complicated two and three-dimensional geometries have been prepared by femtosecond laser induced two-photon photopolymerization of resins, including aspheric micro lens and arrays, axicones, Dammann gratings, Fresnel lenses, Fractal zone plates, and integrated nanofiber sets.