Acoustic Resonance Tuning by High-Order Lorentzian Mixing.

Nanoscale mechanical resonators have attracted a great deal of attention for signal processing, sensors, and quantum applications. Recent progress in ultrahigh- acoustic cavities in nanostructures allows strong interactions with various physical systems and advanced functional devices. Those acoustic cavities are highly sensitive to external perturbations, and it is hard to control those resonance properties since those responses are determined by the geometry and material.

Active Information Manipulation via Optically Driven Acoustic-Wave Interference.

Implementing on-chip information processing systems through photonic-phononic interactions has attracted considerable interest owing to its potential for storing, sensing, and signal processing, but the generation and extinction of acoustic waves are determined by the existence of pump power and the phonon lifetime. Here, we demonstrate the acoustic-wave interference and active information manipulation by optically driven acoustic waves in a silicon photonic-phononic controller-emitter-receiver system. The filtered and transmitted information to the receiver has a narrow bandwidth of 6.