Category Technology/Electronics

New Device Modulates Light and Amplifies Tiny Signals

This is a schematic of the first-ever plasmomechanical oscillator (PMO), developed by NIST researchers. The orange-white ovals represent the localized plasmon oscillations. The cantilever, containing the gold cuboid nanoparticle, lies dead center. The series of white curves represents the electrical field applied to the cantilever. Data at right indicates that the device can lock onto and greatly amplify weak signals that oscillate at frequencies close to those of the PMO. Credit: B. Roxworthy/NIST

This is a schematic of the first-ever plasmomechanical oscillator (PMO), developed by NIST researchers. The orange-white ovals represent the localized plasmon oscillations. The cantilever, containing the gold cuboid nanoparticle, lies dead center. The series of white curves represents the electrical field applied to the cantilever. Data at right indicates that the device can lock onto and greatly amplify weak signals that oscillate at frequencies close to those of the PMO. Credit: B. Roxworthy/NIST

Researchers have for the first time created a plasmomechanical oscillator, a nanometer-scale device that is no bigger than a red blood cell but has myriad technological applications...

Read More

Finding Order in Disorder demonstrates a New State of Matter

This is Cristiano Nisoli. Credit: Los Alamos National Laboratory

This is Cristiano Nisoli. Credit: Los Alamos National Laboratory

‘Spindoctors’ note that topological order, associated with quantum mechanics, also applies to classical material called artificial spin ice. Physicists have identified a new state of matter whose structural order operates by rules more aligned with quantum mechanics than standard thermodynamic theory. In a classical material called artificial spin ice, which in certain phases appears disordered, the material is actually ordered, but in a “topological” form.

“Our research shows for the first time that classical systems such as artificial spin ice can be designed to demonstrate topological ordered phases, which previously have been found only in quantum conditions,” said Los Alamos National Laboratory physicist Cristiano Nisoli...

Read More

Nanoparticle Films for High-Density Data Storage

Researchers created a nanofilm that can store data holographically and is environmentally stable. Here, Shencheng Fu carries out experiments with the new film. Credit: Northeast Normal University

Researchers created a nanofilm that can store data holographically and is environmentally stable. Here, Shencheng Fu carries out experiments with the new film. Credit: Northeast Normal University

New holographic data storage medium could enable wearable technology that captures and stores detailed 3D images. New nanoparticle-based films that are more than 80 times thinner than a human hair may provide materials that can holographically archive more than 1,000 times more data than a DVD in a 10-by-10-centimeter piece of film...

Read More

Engineers turn Plastic Insulator into Heat Conductor

Engineers at MIT have developed a polymer thermal conductor — a plastic material that, however counterintuitively, works as a heat conductor, dissipating heat rather than insulating it. Image: Chelsea Turner/MIT

Engineers at MIT have developed a polymer thermal conductor — a plastic material that, however counterintuitively, works as a heat conductor, dissipating heat rather than insulating it. Image: Chelsea Turner/MIT

Technique could prevent overheating of laptops, mobile phones, and other electronics. Plastics are excellent insulators, meaning they can efficiently trap heat – a quality that can be an advantage in something like a coffee cup sleeve. But this insulating property is less desirable in products such as plastic casings for laptops and mobile phones, which can overheat, in part because the coverings trap the heat that the devices produce.

Now a team of engineers at MIT has developed a polymer thermal conductor – a plastic material that, however counterintuitively, works as a heat co...

Read More