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Phys Rev Lett. 2008 Jan 18;100(2):023902. Epub 2008 Jan 17.

One-way electromagnetic waveguide formed at the interface between a plasmonic metal under a static magnetic field and a photonic crystal.

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  • 1Department of Applied Physics, Stanford University, Stanford, California 94305, USA.


We demonstrate theoretically the existence of one-way electromagnetic modes in a waveguide formed between a semi-infinite photonic crystal structure and a semi-infinite metal region under a static magnetic field. Such a waveguide provides a frequency range where only one propagating direction is allowed. In this frequency range, disorder-induced scattering is completely suppressed. Such a waveguide also modifies the basic properties of waveguide-cavity interaction.

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