A single sheet of graphene dramatically changes the nonlinear response of a silicon photonic crystal, enabling ultralow-power optical bistability, self-induced regenerative oscillation and coherent four-wave mixing.
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Kim, K., Cho, SH. & Lee, CW. Graphene–silicon fusion. Nature Photon 6, 502–503 (2012). https://doi.org/10.1038/nphoton.2012.177
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DOI: https://doi.org/10.1038/nphoton.2012.177
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