2 papers
physics.app-ph2025
Nonreciprocal parametric amplification of elastic waves in supersonic space-time modulated media
Yingrui Ye, Chunxia Liu, Xiaopeng Wang +1
Space-time modulated elastic media, whose material properties vary in both space and time, have attracted significant attention as a promising strategy for achieving nonreciprocal…
physics.app-ph2024
Controlling surface acoustic waves (SAWs) via temporally graded metasurfaces
Jonatha Santini, Xingbo Pu, Antonio Palermo +2
In this manuscript, the temporal rainbow effect for surface acoustic waves (SAW) is illustrated through a temporal analog of space metagradings. We show that a time-modulated array…