Gyrotropic photonic crystal waveguide switches

Wu, Z.; Levy, Miguel; Fratello, V. J.; Merzlikin, A. M.
February 2010
Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p051125
Academic Journal
Functional photonic crystals fabricated in iron garnet films are shown to provide magnetically-controllable optical switching. Transverse-electric and transverse-magnetic stop band separation in conjunction with optical gyrotropy are utilized to selectively block and transmit near-infrared light in waveguide geometries. Geometrical birefringence allows the simultaneous low- and high-birefringence in different modes necessary to create band gap separation and effective magneto-optic gyrotropy in a single device.


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