Title

Polarization rotation enhancement and scattering mechanisms in waveguide magnetophotonic crystal

Document Type

Article

Publication Date

9-29-2006

Abstract

Intermodal coupling in photonic band gap optical channels in magnetic garnet films is found to leverage the nonreciprocal polarization rotation. Forward fundamental-mode to high-order mode backscattering yields the largest rotations. The underlying mechanism is traced to the dependence of the grating-coupling constant on the modal refractive index and profile of the propagating beam. Large changes in polarization near the band edges are observed in first and second orders. Extreme sensitivity to linear birefringence exists in second order. © 2006 American Institute of Physics.

Publication Title

Applied Physics Letters

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