Optical modulators typically rely on weak nonlinear light–matter interactions to modulate light with light. But using surface plasmons to excite quantum dots, researchers at the California Institute of Technology have now demonstrated an efficient approach to chip-based all-optical modulation.
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Lereu, A. Plasmons lend a helping hand. Nature Photon 1, 368–369 (2007). https://doi.org/10.1038/nphoton.2007.105
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DOI: https://doi.org/10.1038/nphoton.2007.105
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