The authors demonstrate a technique allowing sensitive nanomechanical motion detection based on the evanescent light wave coupling between two photonic nanowires. Any relative motion between the nanowires results in a change in light coupling, providing a means of registering motion. The in-plane vibrations of a nanomechanical resonator were recorded using this method. An analysis of the sensitivity reveals the potential of this integrated technique to provide fast and sensitive motion detection.
Detection of nanomechanical motion by evanescent light wave coupling
I. De Vlaminck, J. Roels, D. Taillaert, D. Van Thourhout, R. Baets, L. Lagae, G. Borghs; Detection of nanomechanical motion by evanescent light wave coupling. Appl. Phys. Lett. 4 June 2007; 90 (23): 233116. https://doi.org/10.1063/1.2746067
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