Millimeter Wave Control Using TiO2 Photonic Crystal with Diamond Structure Fabricated by Micro-Stereolithography
The diamond photonic crystals with the periodic arrangement of high dielectric constant (ε=100) were fabricated, and photonic band gap properties in the millimeter waveguides were investigated. Acrylic diamond lattice structures with TiO2 dispersion at 40 vol. % were fabricated by Micro-stereolithography. The forming accuracy was 10m. After sintering process, TiO2 diamond lattice structures are obtained. The relative density reached 96%. The millimeter wave transmittance properties were measured with network analyzer and W-band millimeter waveguide. The band gap was measured between 90 GHz and 110 GHz in the Γ-X <100> direction, which was well agreed with the results calculated by the plane wave expansion method and simulated by the Transmission Line Modeling method.
Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino
M. Kaneko and S. Kirihara, "Millimeter Wave Control Using TiO2 Photonic Crystal with Diamond Structure Fabricated by Micro-Stereolithography", Materials Science Forum, Vols. 631-632, pp. 293-298, 2010