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In this work, we propose a one-dimensional (1D) Helmholtz resonator (HR) array that can be used to measure the molar ratio of a 1-propanol solution. This 1D HR array is made from aluminum and is immersed in the 1-propanol solution to measure its molar ratio. The transmission spectra of the 1D HR array show two dips, which are caused by the local resonance effect. Molar ratio sensing is achieved by...
We demonstrate the simultaneous existence of slow photonic and phononic modes in a fishbone-like one-dimensional phoxonic crystal nanobeam. The phoxonic crystal nanobeam, which is formed by a suspended fishbone-like silicon waveguide, is not only an optical one-dimensional grating waveguide but also a waveguide with acoustic local resonance. Because of the slow group velocities, the acousto–optical...
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