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Acoustic meta-atom with maximum Willis coupling
A simpler acoustic meta-atom is experimentally shown to achieve near-maximum Willis coupling, enabling easier design of high-efficiency acoustic devices.
Left-handed Band in an Electromagnetic Metamaterial Inducedby Sub-wavelength Multiple Scattering
By accounting for sub-wavelength multiple scattering in paired resonators, the work experimentally supports negative refractive index and superlensing in periodic electromagnetic metamaterials.
Gait learning for soft microrobots controlled by light fields
A Bayesian optimization + Gaussian-process learning scheme enables light-controlled soft microrobots to optimize and adapt gaits with few experiments and robustness across microrobot samples.
Photonic emulation of two-dimensional materials with antiferromagnetic order
A spin-valley photonic topological insulator metamaterial emulates antiferromagnetic, valley-coupled 2D materials, where a single geometric parameter controls chiral domain-wall propagation and topological protection.
Topological bands and triply-degenerate points in non-Hermitian hyperbolic metamaterials
A non-Hermitian topological band description for continuous hyperbolic metamaterials reveals triply-degenerate points with quantized topological charges and supports bulk-edge correspondence via Maxwell-equation simulations.
Towards a Circular Economy via Intelligent Metamaterials
Software-commandable intelligent metasurfaces/metamaterials are proposed as a design enabler to tune electromagnetic/acoustic/mechanical behavior and reduce waste via circular economy principles.
Acoustic higher-order topological insulator on a Kagome lattice
An acoustic metamaterial with a breathing Kagome lattice realizes a second-order topological insulator whose corner states are topologically protected yet reconfigurable by corner shape.
Optical left-handed metamaterials made of arrays of upright split-ring pairs
Simulations suggest an optical left-handed metamaterial made from upright split-ring pairs can achieve strong double-negative behavior and negative refraction in the near-IR.
Metamaterial Superconductors
Engineered electromagnetic metamaterials (e.g., ENZ and hyperbolic) can enhance electron pairing and yield higher-Tc superconductivity than pure aluminium, with projections for other materials.
Emergence of Seismic Metamaterials: Current State and Future Perspectives
The article surveys seismic metamaterials in soils and outlines what effective-medium theory suggests about achievable material parameters and future large-scale auxetic designs.
Retrieval of all effective susceptibilities in nonlinear metamaterials
A generalized nonlinear transfer-matrix method enables retrieval of all effective nonlinear susceptibility terms in anisotropic electromagnetic metamaterials, demonstrated via sum frequency generation.
Double-negative electromagnetic metamaterials due to chirality
Chirality in the background medium can induce a double-negative effective refractive index in metamaterials built from a single type of dielectric resonant element.
Tough self-healing elastomers by molecular enforced integration of covalent and reversible networks
By molecularly enforcing mixing of reversible hydrogen-bond networks with permanent covalent crosslinks, the authors fabricate a tough dry elastomer that self-heals at room temperature.
Inhomogeneous All-Dielectric Magnetic Metamaterials
An experimentally tested inhomogeneous all-dielectric magnetic metamaterial with permeability varying from positive to negative enables localized electromagnetic field enhancement and resonant absorption under oblique incidence.
Three-Dimensional Percolation Modeling of Self-Healing Composites
3D percolation simulations show that embedded glue-carrying cells delay fatigue and that conductance can track degradation, with strong competition between healing cells in three dimensions.
Percolation Modeling of Conductance of Self-Healing Composites
Modeling and simulations show that self-healing delays fatigue onset and that conductance changes can track material quality degradation in the low-damage regime.
Modeling of Self-Healing Polymer Composites Reinforced with Nanoporous Glass Fibers
Continuum rate-equation modeling and numerical simulations suggest that parameter choices can partially overcome fatigue and delay mechanical property degradation in self-healing polymer composites with nanoporous glass fibers.