Researchers control and modulate acoustic waves on chip for the first time

https://techxplore.com/news/2022-06-modulate-acoustic-chip.html

"control and modulation of acoustic waves with an electric field on chip for the first time.

"integrated lithium niobate platform, bringing us one step closer to an acoustic integrated circuit. Loncar and his team harnessed the unique properties of lithium niobate to build an on-chip, electro-acoustic modulator to control the acoustic waves propagating in on-chip waveguides. By applying an electric field, the modulator can control the phase, amplitude, and frequency of the acoustic waves on chip... electrical modulation to actively tune the acoustic devices... microwave signal processing using acoustic devices"