3 papers
physics.app-ph2026
Ultra-low-frequency reflection mode conversion from compressional to shear waves enabled by periodic inclined slits
Kaifei Feng, Pai Peng
A periodically patterned free surface with inclined slits can convert an incident compressional wave into a reflected shear wave with nearly complete efficiency at very low frequen…
physics.app-ph2026
Slit-Induced Reflection Mode Conversion Between Fundamental Lamb Modes in Elastic Plates with Low-Frequency and Broadband Response
Kaifei Feng, Pai Peng
We present a compact slit-based interface that enables reflection mode conversion in an elastic plate by transforming an incident lowest-order antisymmetric Lamb mode into a reflec…
physics.app-ph2025
Broadband Reflective Elastic Mode Conversion Enabled by a Single Row of Inclined Long-Slits
Kaifei Feng, Weidong Wang, Yucheng Gao +4
Broadband longitudinal-to-transverse mode conversion under normal incidence remains difficult to achieve, especially with structurally simple designs. Numerical simulations show th…