Focal Interest
Focal Interest

Metamaterial

  1. Chirality affects microcritical, not macrocritical, stability
    Analysis of periodic lattice metamaterials with rigid joints shows chirality affects microscale stability but not macroscale stability, enabling tailored critical mode activation.
  2. Nonreciprocal stiffness and damping decouple wave control in elastic lattices
    Nonreciprocal elastic lattices with engineered damping enable decoupled control of wave amplification and propagation, allowing independent tuning of temporal growth and velocity characteristics.
  3. Optimized tunable acoustic switch uses asymmetric scatterers
    Multiobjective optimization of tunable acoustic switches using multiresonant asymmetric scatterers in sonic crystals, combining Bragg and local resonance bandgaps for switchable transmission.
  4. Brittle lattice strength depends on loading direction and topology
    Multiscale analysis of tension-compression asymmetry in brittle lattice metamaterials using additive manufacturing, micro-CT imaging, and computational modeling to predict failure mechanisms.
  5. Terahertz pulse behavior in negative-index metamaterials is intensity dependent
    Study reveals terahertz laser pulses create bright solitons below and dark solitons above a critical frequency in negative index meta-materials, with intensity-dependent bandwidth.