Engineering researchers at the University of Missouri have developed a material that has the ability to control these waves, creating possible medical, military and commercial applications with the potential to greatly benefit society
Sound waves passing through the air, objects that break a body of water and cause ripples, or shockwaves from earthquakes all are considered “elastic” waves. These waves travel at the surface or through a material without causing any permanent changes to the substance’s makeup. Now, engineering researchers at the University of Missouri have developed a material that has the ability to control these waves, creating possible medical, military and commercial applications with the potential to greatly benefit society.
“Methods of controlling and manipulating subwavelength acoustic and elastic waves have proven elusive and difficult; however, the potential applications—once the methods are refined—are tremendous,” said Guoliang Huang, associate professor of mechanical and aerospace engineering in the College of Engineering at MU. “Our team has developed a material that, if used in the manufacture of new devices, could have the ability to sense sound and elastic waves. By manipulating these waves to our advantage, we would have the ability to create materials that could greatly benefit society—from imaging to military enhancements such as elastic cloaking—the possibilities truly are endless.”
In the past, scientists have used a combination of materials such as metal and rubber to effectively ‘bend’ and control waves. Huang and his team designed a material using a single component: steel. The engineered structural material possesses the ability to control the increase of acoustical or elastic waves. Improvements to broadband signals and super-imaging devices also are possibilities.
The material was made in a single steel sheet using lasers to engrave “chiral,” or geometric microstructure patterns, which are asymmetrical to their mirror images (see photo). It’s the first such material to be made out of a single medium. Huang and his team intend to introduce elements they can control that will prove its usefulness in many fields and applications.
“In its current state, the metal is a passive material, meaning we need to introduce other elements that will help us control the elastic waves we send to it,” Huang said. “We’re going to make this material much more active by integrating smart materials like microchips that are controllable. This will give us the ability to effectively ‘tune in’ to any elastic sound or elastic wave frequency and generate the responses we’d like; this manipulation gives us the means to control how it reacts to what’s surrounding it.”
Going forward, Huang said there are numerous possibilities for the material to control elastic waves including super-resolution sensors, acoustic and medical hearing devices, as well as a “superlens” that could significantly advance super-imaging, all thanks to the ability to more directly focus the elastic waves.
The Latest on: Metamaterials
via Google News
The Latest on: Metamaterials
- Metamaterial supercells control multiple optical propertieson July 1, 2021 at 1:19 pm
Metasurfaces and their novel or counterintuitive optical properties can achieve a variety of functions that conventional bulk optics components cannot. The Harvard SEAS lab of metamaterials pioneer ...
- Metamaterials Technologies Market Aims to Expand at Double-Digit Growth Rate Covid-19 Analysis | Kymeta, Echodyne, Sandvik Materials Technologyon June 30, 2021 at 9:18 am
This expounded Metamaterials Technologies market report is presently delivered into its data which is dependent on a broad investigation of the market Information about the forthcoming business sector ...
- Newly Designed Material Could Make Sound Travel Backwardon June 30, 2021 at 4:54 am
Think of a moonwalk. The dancer moves backward even though they look like they are walking forward. In the quantum world, waves can do a similar thing: Backward waves move in one direction while their ...
- A new type of quasiparticleon June 29, 2021 at 9:03 am
Russian scientists have experimentally proved the existence of a new type of quasiparticle—previously unknown excitations of coupled pairs of photons in qubit chains. This discovery could be a step ...
- Scientists discover new type of quasiparticleon June 28, 2021 at 9:00 pm
Russian scientists have experimentally proved the existence of a new type of quasiparticle -- previously unknown excitations of coupled pairs of photons in qubit chains. This discovery could be a step ...
- Irishman Conrad Burke leading new Bill Gates-backed fundon June 28, 2021 at 6:51 am
Bray native Conrad Burke, who previously led Innovalight, is the co-founder of a new fund backing start-ups working with metamaterials.
- Inkjet Printing “Impossible Materials” – Bend Light, Manipulate Energy, or Have Chameleon-Like Abilitieson June 27, 2021 at 5:52 pm
Engineers develop inexpensive, scalable method to make metamaterials that manipulate microwave energy in ways conventional materials cannot. Engineers at Tufts University have developed new methods to ...
- Cutting noise with a lightweight metamaterial sound screenon June 24, 2021 at 6:37 am
UK startup Metasonixx is starting trials of a plastic metamaterial that acts as a lightweight screen to cut out noise but maintain airflow.
- The first observation of the superscattering effect of metamaterialson June 23, 2021 at 6:30 am
Entering an invisible doorway to catch a train at King's Cross station in London is a renowned fictional scene from the Harry Potter series. In recent decades, physicists have been trying to produce a ...
- Engineers develop inexpensive, scalable method to make metamaterials that manipulate microwave energyon June 21, 2021 at 8:00 am
Engineers at Tufts University have developed new methods to more efficiently fabricate materials that behave in unusual ways when interacting with microwave energy, with potential implications for ...
via Bing News