Nonlinear magneto-optical Bragg gratings |
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Authors: | Jonsson Fredrik Flytzanis Christos |
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Institution: | Tyndall National Institute, University College Cork, Lee Maltings, Cork, Ireland. |
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Abstract: | In magneto-optical gratings the magnetic dipolar coupling superimposed on the electric dipolar one introduces nonreciprocity and spectral discrimination between circular polarization states, measured by a Zeeman-like splitting of the photonic Bragg resonances. In a nonlinear regime the degree of nonreciprocity is modified by the photoinduced interplay of these splittings and their Stark-like shifts. We predict novel magneto-optical modulation schemes for switching between orthogonal circular polarization states of transmission or reflection operated by means of an intense linearly polarized optical pulse train. |
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