Photonic Band Gap Calculation and Holographic Fabrication of Orthorhombic and Tetragonal 3D Photonic Crystals

ORAL

Abstract

We report a photonic band gap (PBG) and fabrication of both orthorhombic and tetragonal photonic crystals. 3D photonic crystal structures were formed by a double-exposure of photoresist SU8 through a phase mask. Lattice structures and PBG can be controlled by the rotational angles of the phase mask between two exposures. PBG computation predicts that the photonic crystal structure with the optimized bandgap can be realized when the rotational angle is set between 50 and 70 degrees. A photonic crystal template by 60-degree phase mask rotation was fabricated in SU8.

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Authors

  • Kris Ohlinger

    Department of Physics and Geology, University of Texas-Pan American, Edinburg, TX 78539

  • Yuankun Lin

    Department of Physics and Geology, UTPA, Edinburg, Texas, 78539, Department of Physics and Geology, University of Texas-Pan American, Edinburg, Texas, 78539

  • Di Xu

    Department of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA 15261

  • Kevin Chen

    Department of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA 15261