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By using the coupled-mode theory-based transfer matrix, we analyze the optical properties of direct and indirect coupling of cascaded cavities in the resonator-waveguide system. The dispersion relation of the system, bandgap opening mechanisms, and anticrossing behavior are investigated theoretically and numerically. We also derive the transmission coefficients of the direct and indirect coupling...
At present, the study of vortex flowmeter focus on the detection of vortex shedding frequency. With the combination of stochastic energetics and stochastic resonance, a new way, stochastic energetic resonance, is proposed to detect vortex shedding frequency. The theoretical analysis, numerical simulation and experimental results manifest that the vortex shedding frequency can be obtained accurately...
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