Bragg reflector waveguide and electro-optic modulator based on barium titanate epitaxial thin films

Zhifu Liu*, Pao Tai Lin, Bruce W Wessels

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report the nanofabrication of Bragg reflector waveguide structure based on a barium titanate (BTO) epitaxial thin film grown on MgO substrate and characterized its optical transmission. Low pressure 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 BaTiO3 (BTO) thin film. Simulations of the optical transmission and stop band of TE mode, and electro-optic (EO) modulator tunability are also discussed. The non-linear photonic crystal waveguides are potentially suitable as tunable optical filters and ultra-wide bandwidth modulators.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings - Three-Dimensional Nano- and Microphotonics
Pages7-11
Number of pages5
Volume1014
StatePublished - Dec 1 2007
EventThree-Dimensional Nano- and Microphotonics - San Francisco, CA, United States
Duration: Apr 9 2007Apr 13 2007

Other

OtherThree-Dimensional Nano- and Microphotonics
CountryUnited States
CitySan Francisco, CA
Period4/9/074/13/07

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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