2604.01280 Non-Reciprocal Wave Propagation in Spatiotemporally Modulated Elastic Beams: Experimental Demonstration of 28 dB Isolation at Audio Frequencies
We report a systematic investigation of non reciprocal waves with quantitative characterization spanning multiple length scales and operating regimes. Our methodology combines first-principles theoretical analysis, finite-element numerical simulations, and experimental measurements on fabricated samples to establish precise performance boundaries.