Demonstration of critical coupling in a topological-insulator elastic-wave waveguide-resonator that eliminates upstream reflections while retaining spectral characteristics and maximizing resonator energy.
Perfect and broadband acoustic absorption by critically coupled sub-wavelength resonators
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Critical couplings in topological-insulator waveguide-resonator systems observed in elastic waves
Demonstration of critical coupling in a topological-insulator elastic-wave waveguide-resonator that eliminates upstream reflections while retaining spectral characteristics and maximizing resonator energy.