Paper
25 August 2008 Polarization rotation enhancement and gyrotropic photonic bandgaps in birefringent magneto-photonic crystals
Amir A Jalali, Miguel Levy, Ziyou Zhou, Neluka Dissanayake
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Abstract
We present a study of polarization rotation enhancement in birefringent magneto-optic photonic crystal waveguides and provide theoretical and experimental support for a novel type of photonic bandgap. The coupling between counter-propagating elliptically birefringent local normal modes of different order results in the formation of partially overlapping bandgaps and selective suppression of Bloch state propagation near the band edges. We use a bilayer unit cell stack model with an alternating system of birefringent states in adjacent layers. A magnetically tunable and large polarization rotation of the allowed Bloch modes near the band edges is computed theoretically and observed experimentally.
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Amir A Jalali, Miguel Levy, Ziyou Zhou, and Neluka Dissanayake "Polarization rotation enhancement and gyrotropic photonic bandgaps in birefringent magneto-photonic crystals", Proc. SPIE 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, 70560U (25 August 2008); https://doi.org/10.1117/12.806614
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KEYWORDS
Polarization

Photonic crystals

Magneto-optics

Waveguides

Crystals

Photon polarization

Birefringence

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