Optics and Photonics
Tunable lenses, metasurfaces and reconfigurable photonic devices.
Heat breaks the rules at the nanoscale and scientists used it to their advantage
Nanoscale gold metamaterials can boost heat transfer across tiny gaps by up to 4×, enabling more efficient thermal management and precision heat engineering.
4D Printing with Liquid Crystal Elastomers: Materials, Methods, and Emerging Applications
A review summarizes how 4D printing of liquid crystal elastomers enables programmable, reversible shape changes and surveys fabrication methods, integrations, and remaining challenges.
Snap-Through Thermomechanical Metamaterials for High-Performance Thermal Rectification
A snap-through thermomechanical metamaterial thermal diode using SMA springs and bistable copper strips achieves strong, passive thermal rectification with validated experiments and scalable modular stacking.
HGX: Un Material Cuántico Regenerativo Autorreparable y Multifuncional para una nueva era Tecnológica
HGX is presented as a multifunctional, self-healing quantum-regenerative material claimed to improve batteries, optical fibers, quantum chips, and HL-LHC technologies.
Unlocking acoustic magic: Machine learning for on-demand metamaterial design
Machine learning and generative inverse design are being used to engineer acoustic metamaterial structures that meet specified performance targets, aiming to reduce simulation cost and expand design space.
Hydrogel-based flexible metamaterial for underwater acoustic carpet cloaking
A hydrogel-based flexible metamaterial is proposed for underwater acoustic carpet cloaking.
Optimal Design of an Acoustic Lens with Anisotropic Metamaterial
By optimizing the sizes of random rigid scatterers in an anisotropic acoustic metamaterial, the lens achieves subwavelength focusing beyond the diffraction limit.
Learning Electromagnetic Metamaterial Physics With ChatGPT
A fine-tuned LLM can predict absorptivity spectra of all-dielectric electromagnetic metamaterial metasurfaces from text geometry prompts and can be used for inverse geometry design.
Experimental Demonstration of Controllable PT and anti-PT Coupling in a non-Hermitian Metamaterial
An electromagnetic metamaterial can be tuned to switch between PT and anti-PT symmetric phases and cross exceptional points by adjusting resonator frequency and dissipation.
Fundamental absorption bandwidth to thickness limit for transparent homogeneous layers
A universal bandwidth-to-thickness limit for transparent homogeneous absorber layers is derived via Kramers–Kronig relations and supported by simulations and metamaterial modeling.
Size Effects in Periodic Metamaterials
Numerical results show that reflection and transmission of periodic electromagnetic metamaterials change with unit-cell size relative to wavelength, challenging homogenization when d is comparable to λ.
Soliton metacrystals: topology and chirality
A periodic “soliton metacrystal” in a ring microresonator yields a controllable topological band structure with phononic edge states and a chirality signature in optical comb spectra.
Interpretable SHAP-bounded Bayesian optimization for underwater acoustic metamaterial coating design
An interpretability-informed Bayesian optimization method uses SHAP to refine design-space bounds and improve underwater acoustic metamaterial coating designs without extra simulations.
Optical non-Hermitian skin effect in two-dimensional uniform media
A theory shows optical non-Hermitian skin modes can localize in uniform anisotropic lossy media, with localization set by an effective gauge potential and implementable via subwavelength multilayer metamaterials.
Toroidic and antitoroidic orders in hexagonal arrays of dielectric trimers: magnetic group approach
By breaking specific symmetries in hexagonal dielectric trimer arrays, the authors enable polarization-sensitive toroidal and antitoroidal dipole resonances with high-Q light-matter interaction.
Acoustic Wavefront Shaping Using Ultrahigh Phase Resolution Metamaterial
A transmissive acoustic metamaterial unit cell with a rotated bilateral symmetrical T-shaped structure provides high phase-delay resolution for sound focusing and steering.
Photonic Chern insulators made of gyromagnetic hyperbolic metamaterials
Gyromagnetic hyperbolic metamaterials are shown (via theory and electromagnetic simulations) to form photonic Chern insulators with non-radiative, robust, magnetically switchable unidirectional edge waveguiding.
Manufacturing of 3D-metallic electromagnetic metamaterials for feedhorns used in radioastronomy and satellite communications
A new metallic meta-ring electromagnetic metamaterial is theoretically justified and fabricated, enabling a compact prototype microwave antenna with a 2:1 bandwidth for radioastronomy and satellite communications.
Input impedance-matching metamaterial to enhance ultrasonic pulse transmission through an acoustic barrier
An impedance-matching acoustic metamaterial with a virtual intermediate layer improves ultrasonic pulse transmission through an acoustic barrier, experimentally boosting transmitted energy by 7.78×.
Optical analog of particle production in gravitational fields
Electromagnetic metamaterial waveguides can be engineered to mimic extremely strong gravitational fields, producing an optical analog of particle creation.
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.
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.