Bandgap formation and selective suppression of Bloch states in birefringent gyrotropic Bragg waveguides
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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Miguel Levy1, Amir A Jalali, Ziyou Zhou
1Physics Department, Michigan Technological University, Houghton, MI 49931, USA. mlevy@mtu.edu
Abstract:
Birefringent magnetophotonic crystals are found to exhibit degeneracy breaking for asymmetric contradirectional coupling in planar waveguides. Fundamental to high-order local normal mode coupling leads to partially overlapping gyrotropic bandgaps inside the Brillouin zone and partial suppression of Bloch mode propagation. A large magneto-optically active reorientation in polarization state is found for allowed Bloch modes at bandgap edges.
