23 February 2011 Hexagonal photonic crystal waveguide based on barium titanate thin films
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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.
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Jianheng Li, Zhifu Liu, Bruce W. Wessels, Yongming Tu, Seng-Tiong Ho, Alexandra Joshi-Imre, 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); doi: 10.1117/12.875072; https://doi.org/10.1117/12.875072
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