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We aim to develop a molecular-machine-driven nanoplasmonic switch for its use in future nanophotonic integrated circuits (ICs) that have applications in optical communication, information processing, biological and chemical sensing. Experimental data show that an Au nanodisk array, coated with rotaxane molecular machines, switches its localized surface plasmon resonances (LSPR) reversibly when it...
A plasmonic switch is demonstrated with rotaxane-derivatized Au nanodisks. The molecule-nanodisk complexes exhibit redox-controlled reversible plasmon-based switching, suggesting that nanoscale movement with surface-bound molecular machines can be used as the active components of plasmonic devices.
The nanoparticles redistribution in a microfluidic channel through a dynamic patterning process will locally change the refractive index of the medium around the nanodisk arrays, as well as the LSPR. The dynamic patterning of nanoparticles was achieved by a standing surface acoustic wave (SSAW), from which the acoustic force generated and force the particles to the pressure nodes. The SSAW were formed...
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