Effect of a thin reflective film between substrate and photoresin on two-photon polymerization

Saetchnikov, A. and Saetchnikov, V. and Tcherniavskaia, E. and Ostendorf, A.

Volume: 24 Pages: 658-666
DOI: 10.1016/j.addma.2018.07.003
Published: 2018

In this paper we present the results of a study on the impact of a thin reflective film between the substrate and photoresin on the two-photon polymerization procedure. We have proposed a model for the elementary polymerization volume (voxel) formation for the introduced case and carried out simulations to examine the influence of the refractive indexes relation, layer thickness, roughness, and polymerization depth on the polymerization performance. The experiments on fabrication of 2D and 2.5D structures have shown the benefit of the proposed configuration for the substrate/photoresin interface localization as well as for the distortion-free fabrication. © 2018 Elsevier B.V.

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