Femtosecond laser-induced two-photon polymerization of inorganic–organic hybrid materials for applications in photonics

Abstract
Investigations of two-photon polymerization of inorganic–organic hybrid materials initiated by femtosecond Ti:sapphire laser pulses are performed. First applications of this technique for the fabrication of three-dimensional microstructures and photonic crystals in inorganic–organic hybrid polymers with a structure size down to 200 nm and a periodicity of 450 nm are discussed.