Bandgap formation and selective suppression of Bloch states in birefringent gyrotropic Bragg waveguides.
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.
Levy
Miguel
M
Physics Department, Michigan Technological University, Houghton, MI 49931, USA. mlevy@mtu.edu
Jalali
Amir A
AA
Zhou
Ziyou
Z
Dissanayake
Neluka
N
D001718:Birefringence; D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D014159:Transducers