Articles tagged with Metamaterials
Researchers from University of Konstanz and LMU Munich demonstrate ultrafast electron diffraction to uncover nanomaterials' functionality. They observe quantum mechanical phase shift through interaction with light waves, providing a movie-like sequence of images revealing fundamental light-matter interactions.
Researchers discovered the precise construction of moths wings that enable extraordinary ultrasound-absorptive properties, creating a resonant absorber 100 times thinner than sound wavelength. This breakthrough inspires the design of ultra-thin sound absorbers for homes and offices.
Scientists from the US Army and MIT's Center for Bits and Atoms created a new way to link materials with unique mechanical properties, enabling the design of modular materials with tailored properties. This could lead to dynamic structures that can reconfigure on their own, such as swarms of robots forming bridges.
Researchers created tiny building blocks called voxels that exhibit special properties and can be assembled into large, complex objects. Examples include cars, robots, and wind turbine blades that respond to environmental stimuli in predictable ways.
Researchers have experimentally observed effective gravity and two-time physics in ferrofluid-based hyperbolic metamaterials, paving the way for ultra-fast all-optical hypercomputing. This phenomenon has potential applications in time-sensitive fields such as real-time computing and target recognition.
Researchers created origami-built metamaterials that retain shape recoverability, directional mechanical properties, and reversible auxeticity. This breakthrough enables multifunctional applications in soft robotics and medical devices.
Scientists have created a technique for precise nanoparticle trapping using metamaterials, overcoming size restrictions and enabling long-term stability. This breakthrough has far-reaching potential for biomedical science applications, including cancer research and imaging.
Physicists at the University of Würzburg have experimentally confirmed a new theory on topological metamaterials, which exhibit extraordinary properties. The study shows that all states localize at the edge of the material, a phenomenon known as the non-Hermitian skin effect.
A South Korean research team has developed moldable nanomaterials and a one-step printing technology to produce ultrathin metalens that are 100 times thinner than human hair. The new technology reduces production costs by 1/100, making VR/AR devices more accessible.
Researchers developed a quantum photonics prototype using hyperbolic metamaterials to achieve high-efficiency single-photon sources with broad spectral bandwidth. The tilted geometry suppresses light reflections, enabling faster photon extraction and paving the way for on-chip quantum networks.
Researchers created a new acoustic smart material inspired by shark skin that can mimic three key electronic devices: a switch, logic gate, and diode. The material changes its properties in response to magnetic stimuli, allowing for on-demand transmission and switching.
Researchers from Hong Kong University of Science and Technology have developed virtualized acoustic metamaterials that can be tuned flexibly using software programs. This technology enables a range of applications including broadband stealth, active sound absorption, super-resolution imaging, and beyond.
Researchers have demonstrated the ability to break reciprocity in acoustic waves using spacetime-varying metamaterials. The materials' properties change simultaneously in time and space, allowing for non-reciprocal wave behavior. This breakthrough has potential applications in fields like communications, medicine, and electronics.
A team of researchers from Harvard SEAS has designed deployable dome using bistable joints linked by rigid bars, demonstrating the potential for morphing surfaces, reconfigurable devices, and controlled energy absorption
Researchers at Tel Aviv University discovered how induced defects in metamaterials produce radically different consistencies and behaviors. The study has far-reaching applications, including protecting fragile components in car crashes and manipulating distant objects using minimally invasive surgery.
Researchers have made breakthrough in bridging the gap between surface plasmon polaritons and the digital world by developing active digital spoof plasmonics. This technology enables real-time manipulation of confined electromagnetic waves, opening up new avenues for novel system applications.
Researchers have developed an intelligent metamaterial that boosts the energy emitted by a patient's body, increasing signal-to-noise ratio and improving MRI imaging. The technology reduces scan time and cost, making high-quality imaging more accessible to patients worldwide.
Scientists create a physical model of porpoise echolocation using hybrid metamaterials, which improves detection accuracy and suppresses environment noise. This breakthrough bridges the gap between biosonar and artificial systems, paving the way for bioinspired technology in underwater sensing and nondestructive testing.
New optical security features use a two-piece metamaterial system to create difficult-to-replicate optical phenomena, making it harder to counterfeit money or intercept secure information. The approach offers improved forgery protection and can be used for various applications, including banknotes and identification cards.
Researchers developed a tunable metamaterial that can change shape in response to electrical control, exhibiting unique mechanical and vibrational properties. This breakthrough has potential applications in next-generation energy storage systems and bio-implantable micro-devices.
The new sensor uses metamaterials to eliminate the need for a dielectric filter, reducing size and energy consumption. It can detect gas concentrations with high sensitivity, using less energy than commercial systems, making it ideal for automotive, consumer electronics, and medical applications.
Researchers from NUS have invented a new way for wearable devices to interconnect using conductive textiles, allowing for more efficient data transmission and improved privacy. The 'wireless body sensor network' enables devices to transmit signals with 1,000 times stronger signal strength than conventional technologies.
A research team led by Prof. Rho developed a simultaneous inverse design of metamaterials using deep learning, allowing for arbitrary photonic structure designs and significant reduction in design time.
The new magnetic metamaterial, made of plastic and copper, can amplify MRI imaging capabilities and cut scan time in half. It has the potential to increase the number of patients seen by clinics and decrease associated costs without risking higher-strength magnetic fields.
Researchers are investigating whether metamaterial concept can be scaled up to city size to reduce earthquake damage. Simulations show that structures act as resonators, plucking energy from Rayleigh waves, and optimal building arrangement could reduce damage by decreasing height radially inward.
RIT Professor Grover Swartzlander is receiving a Phase II award from NASA's NIAC program to explore the feasibility of diffractive solar sails. Diffractive solar sails could be more efficient and withstand the heat of the sun better than traditional reflective sails.
Huachen Cui, Ryan Hensleigh, Hongshun Chen and Xiaoyu Zheng won the JMR Paper of the Year Award for their work on additive manufacturing and high-temperature ceramic metamaterials. The paper demonstrates an approach to fabricate three-dimensional microarchitected materials with high specific strength.
Hybrid magnetic-plasmonic elements enable contactless temperature control in magnetic functional metamaterials, facilitating local, efficient, and fast heating schemes. Sublattice-specific heating on sub-nanosecond time scales is achieved using plasmon-assisted photo-heating.
Engineers at Tufts University have created novel optical devices using 3D printed metamaterials with unique microwave or optical properties. The researchers developed a hybrid fabrication approach to create complex geometries and novel functionalities for wavelengths in the microwave range.
A new class of intelligent metamaterials, called metashells, has been developed to respond to nearby objects. These materials can change their physical characteristics, such as permittivity, in accordance with the electromagnetic properties of the material they contain, enabling adaptive behavior.
Rutgers engineers created flexible, lightweight materials that change shape with temperature, enabling better shock absorption and morphing airplane or drone wings. The materials can be reshaped and returned to their original form on demand, opening up possibilities for soft robotics, tiny implantable biomedical devices, and more.
Researchers at the University of Pennsylvania have demonstrated a device that uses metamaterials to solve integral equations, a common problem in science and engineering. The device operates as an analog computer with light, solving problems orders of magnitude faster than digital computers.
Researchers developed a method to design metamaterial structures with optimum thermal radiation performance, using machine learning and electromagnetic calculations. The new nanostructure demonstrated an exceptionally narrow thermal emission spectral band, exceeding conventional limits.
Boston University researchers created an open, ringlike structure that perfectly cancels out sounds while maintaining airflow, silencing nearly all noise from a loudspeaker. The acoustic metamaterial can be customized to fit various environments, including drones, fans, and MRI machines.
A team of researchers has created a metamaterial that can transport sound in unusually robust ways along its edges and localize it at its corners. This unique property may improve technologies like sonars and ultrasound devices, making them more resistant to defects.
Researchers at UMass Lowell have created a new class of metamaterial that can change the color of light, enabling on-chip optical communication. This technology could lead to smaller, faster, and more efficient computer chips with wider bandwidth and better data storage.
Researchers Nathaniel Gabor and Justin C. W. Song propose a new field of study, electron quantum metamaterials, which involves manipulating electrons in subwavelength structures to exhibit unusual behavior. This field has the potential to produce radically new phenomena, such as superconductivity in twisted bilayer graphene.
University of Sussex researchers create SoundBender, a hybrid system that combines phased arrays and acoustic metamaterials to overcome limitations in previous ultrasound levitation set-ups. The technology enables real-time adjustments, tactile feedback, and manipulation of non-solid objects.
Researchers from Politecnico di Torino and NUST MISIS create a new metamaterial that cloaks nano-sensors, improving their accuracy in optics and biomedicine. The development is part of the Italian-Russian project ANASTASIA, funded by Compagnia di San Paolo.
Researchers at Sandia National Laboratories have developed a tiny synthetic material that can mix two laser pulses to produce 11 new colors, offering potential applications in fields such as archaeology, extraterrestrial life detection, and fiber-optics communication. The metamaterial's efficiency is currently low, but further work aim...
Acoustic cloaking technology has been developed by researchers at Penn State University, which uses metamaterials to bend sound waves around an object, making it appear invisible to underwater instruments. The team successfully tested their design using a 3-foot-tall pyramid structure in an underwater research tank.
The new 3D printed metamaterials, developed by researchers at the University of Southern California, can block sound waves and mechanical vibrations remotely using a magnetic field. They have the potential to be used for noise cancellation, vibration control, and sonic cloaking.
Researchers have developed a quantum metamaterial composed of twin qubits, which can be used as a control element in superconducting electronic devices. The material exhibits unique properties that disappear when separated into its components, making it a promising candidate for future applications.
Scientists create 3D metamaterials that twist when compressed using computer simulations and laser microprinting. The material can respond in a chiral way, challenging classical solid mechanics, and could have applications in space missions, optics, and prosthetics.
Researchers have discovered a new way to simulate Einstein's theory of general relativity in electronic systems, enabling the creation of 3D electron lenses and electronic invisibility devices. The discovery uses Weyl metamaterials, which combine ideas from solid-state physics, particle physics, and cosmology.
Researchers at Michigan Technological University have discovered that the shape and repetitive organization of building blocks within metamaterials affect refraction, contradicting previous assumptions. This finding has significant implications for the development of devices such as invisibility cloaks and perfect lenses.
Researchers in Japan have developed a wavelength-selective plasmonic metamaterial absorber to enhance the generation of spin currents from heat produced in the mid-infrared regime. The unique combination enables stronger light absorption and shows excellent tenability of these metamaterials' resonance wavelengths.
A Penn State researcher has been awarded nearly $8 million by DARPA, the US Navy, and Lockheed Martin to continue his work on engineered metamaterials. The project aims to develop new algorithms and simulation tools for designing optical materials, with potential applications in electromagnetic cloaking technology.
Duke researchers have created 3D-printed electromagnetic metamaterials with potential to revolutionize the design and prototyping of radio frequency applications. The use of a highly conductive material, Electrifi, enables rapid construction of complex devices and accelerates the design process.
Researchers design a metamaterial that expands in size under increasing hydrostatic pressure, which can advance 3D printing beyond natural limitations. The structure's unique properties make it stable and physical despite violating fundamental laws of physics.
Researchers have tested an alternative version of quantum mechanics that uses hyper-complex numbers, predicting new effects and commutation properties. The study found no need for these alternative rules to describe the experiment, but emphasizes the need for further testing.
Researchers have developed a new reconfigurable device that can emit thermal infrared light in a fully controlled manner, enabling efficient energy harvesting from waste heat. The technology has potential applications in thermophotovoltaics and could be used to convert heat into energy for various purposes.
Researchers at Duke University have developed a sensor that detects specific wavelengths of electromagnetic energy using gold-plated crystals. The technology outperforms existing detectors in size, weight, power, speed and cost, making it ideal for detecting methane or natural gas leaks, monitoring crop health and recycling plastics.
A team of researchers has designed a standard set of building-blocks to assemble complex structures and engineer arbitrary 3D metamaterials. The breakthrough aims to overcome the bottleneck in translating scientific progress to commercial applications.
Researchers have created a way to make metamaterials with a single inclusion, providing easier fabrication and tailoring light-matter interactions. This 'photonic doping' technique has implications for flexible photonics, information processing systems, and telecommunications applications.
Researchers have invented a super-material that bends, shapes and focuses sound waves, pushing the boundaries of metamaterials. This innovation has the potential to revolutionize medical imaging and personal audio, allowing for precise control over sound waves.
Berger's Isomax material achieves low density and uncommon strength, making it suitable for various applications such as aerospace structures and robotic machines. The study's findings support the concept's potential for efficient fabrication and manufacturing.
Researchers at the University of Texas at Austin have developed new mechanical metamaterials that can easily transmit motion in one direction while blocking it in another. These nonreciprocal materials have potential applications in soft robotics, prosthetics, and energy harvesting.
Researchers developed a scalable metamaterial film that efficiently reflects solar energy while allowing objects to shed heat through infrared thermal radiation. The material has been successfully tested in field trials, demonstrating significant radiative cooling powers even under direct sunlight with zero energy consumption.
Researchers at the University of Michigan have developed a novel metamaterial that can switch between being hard and soft, maintaining its properties despite repeated changes. This breakthrough enables potential applications in various fields, including car safety and rocket technology.