Bragg Reflector Waveguide and Electro-Optic Modulator Based on Barium Titanate Epitaxial Thin Films Conference Paper uri icon


  • AbstractWe report the nanofabrication of Bragg reflector waveguide structure based on barium titanate (BTO) epitaxial thin film grown on MgO substrate and characterized its optical transmission. A low pressure (~1 Torr) nano-lithography was used for the formation of Bragg reflector waveguide structure. We demonstrate that there is sufficient refractive index contrast to form a well-defined stop band by forming gratings in a top strip layer of Si3N4 that was grown on BTO thin film. Simulation of the optical transmission and stop band of TE mode, and electro-optic (EO) modulator tunability are discussed as well. The non-linear photonic crystal waveguides are potentially suitable as tunable optical filters and ultra-wide bandwidth modulators.

published proceedings

  • MRS Advances

author list (cited authors)

  • Liu, Z., Lin, P., & Wessels, B. W.

citation count

  • 0

complete list of authors

  • Liu, Zhifu||Lin, Pao-Tai||Wessels, Bruce W

publication date

  • December 2007