Ultrafast switching of surface plasmon polaritons achieves over 40% modulation depth, suggesting innovations in integrated circuitry.
We realized an ultrafast nanooptical switching circuitry where we switch surface plasmon polaritons with an external 40-femtosecond modulation pulse with a modulation depth exceeding 40%. This opens the doorway toward ultrafast surface integrated circuitry.
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Lovász et al. (2025) studied this question.
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