Abstract
The Two-photon induced polymerization (2PP) is a novel concept in photopolymer chemistry allowing for elegant 3D direct laser writing (DLW) with resolutions down to several tens of nanometers. It has attracted significant attention in fields such as micro-electromechanical systems (MEMS), photonic crystals or surface plasmon polaritons. Additionally, 2PP can be applied for the structuring of optical waveguides by inducing a local refractive index increase over the surrounding cladding material. Herein, we present our latest work regarding high performance waveguides on the basis of polysiloxane/photopolymer hybrid materials, which we consider to be useful in the communication technology. High refractive acrylic formulations were cured via 2PP in polysiloxane films. In comparison to former works the procedure could be significantly simplified by using a thixotropic, monomer-containing polysiloxane matrix formulation, which could be UV-cured after DLW. The enrichment of monomer during the DLW process in the illuminated regions enabled us to create a refractive index increase over the surrounding material and thus eliminating the impractical evaporating of the excess monomer by simply UV-curing the whole sample after 2PP-structuring. DLW of waveguide structures was carried out using our novel two-photon initiator B3FL.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
