2-Photon Polymerized IP-Dip 3D Photonic Crystals for Mid IR Spectroscopic Applications

Photonic Crystals (PhC) are periodically structured dielectric materials that have been subject to extensive research efforts over the last two decades. PhC known for slow-light phenomenon, which increases interaction time between light and target gas, thereby enhancing sensitivity when applied sensors. Slow is best realized using three-dimensional (3D) with a complete photonic band-gap (PBG). However, they inherently difficult fabricate planar microfabrication techniques. In this work, we present two-photon polymerized (2PP) stereolithographically fabricated 3D targeting mid-infrared (MIR) spectroscopic range. Finite Element Analysis (FEA) was performed on two-dimensional (2D) waveguide (PhCW) analyze significance of PBG slow properties. Additional FEA conducted validated experimentally PhC. The ability tune desired wavelength along their repeatability feasibility demonstrated. This letter presents first, our knowledge, 2PP stereolithography operating at wavelength.