Hexagonal photonic crystal waveguide based on barium titanate thin films

Jianheng Li; Zhifu Liu; Bruce W. Wessels; Yongming Tu; Seng-Tiong Ho; Alexandra Joshi-Imre; Leonidas E. Ocola

doi:10.1117/12.875072

23 February 2011 Hexagonal photonic crystal waveguide based on barium titanate thin films

Jianheng Li, Zhifu Liu, Bruce W. Wessels, Yongming Tu, Seng-Tiong Ho, Alexandra Joshi-Imre, Leonidas E. Ocola

Proceedings Volume 7934, Optical Components and Materials VIII; 79340R (2011) https://doi.org/10.1117/12.875072
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

The simulation, fabrication and measurement of nonlinear photonic crystals (PhCs) with hexagonal symmetry in epitaxial BaTiO₃ were investigated. The optical transmission properties of a PhC were simulated by a 2-D finite-difference time domain (FDTD) method. A complete bandgap exists for both the TE and TM optical modes. The fabricated PhC has a well-defined stop band over the spectral region of 1525 to 1575 nm. A microcavity structure was also fabricated by incorporation of a line defect in the PhC. Transmission of the microcavity structure over the spectral region from 1456 to 1584nm shows a well-defined 5 nm wide window at 1495nm. Simulations indicate that the phase velocity matched PhC microcavity device of 0.5 mm long can potentially serve as modulator with a 3 dB bandwidth of 4 THz.

Citation Download Citation

Jianheng Li, Zhifu Liu, Bruce W. Wessels, Yongming Tu, Seng-Tiong Ho, Alexandra Joshi-Imre, and Leonidas E. Ocola "Hexagonal photonic crystal waveguide based on barium titanate thin films", Proc. SPIE 7934, Optical Components and Materials VIII, 79340R (23 February 2011); https://doi.org/10.1117/12.875072

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