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This paper reports a novel tunable photonic device. The device is based on dual coupled photonic crystal (PhC) nanobeam cavities. Different from other studies, where the cavities are mechanically tuned by varying the coupling gap, here the cavities are tuned by lateral shearing while maintaining a constant coupling gap. In experiments, both electrostatic force and optical gradient force are used to...
We report a hybrid system of nano-optical and mechanical springs. Here, the nanoelectromechanical systems (NEMS) folded beams are fabricated as the mechanical spring and the double coupled one-dimensional photonic crystal cavities are used to pump the “optical spring”. The optical spring effect is experimentally observed.
We present our results on the design, fabrication, and characterization of a tunable photonic crystal (PhC) resonator through utilization of triple-beam coupled nanocavities driven by an on-chip integrated nanomechanical system. Our experiments demonstrated that we are able to achieve up to 24-nm spectral tunability with minimal degradation of by accurate control of both perturbing nanoresonators...
We report in this paper a sub-wavelength 1D photonic crystal resonator tuned using a nanomechanical approach. This device demonstrated a compact and low power approach to achieve tunability of photonic crystal resonances. The device is tuned utilizing coupled cavity approach on an air suspended silicon waveguide with tapered etched holes. The etched holes are fine tuned to achieve a reasonably high-Q...
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