A team of researchers led by UCLA electrical engineers has demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter how far apart they are — a phenomenon known as quantum entanglement.
The tiny tube circled an ant's thorax, gently trapping the insect and demonstrating the utility...
Led by Young Duck Kim, a postdoctoral research scientist in James Hone’s group at Columbia...
Major advances in the field of organic electronics are currently revolutionizing previously silicon-dominated semiconductor technology. Customized organic molecules enable the production of lightweight, mechanically flexible electronic components that are perfectly adapted to individual applications. Chemists at the Goethe Univ. have now developed a new class of organic luminescent materials.
A team of IBM researchers has developed a relatively simple, robust and versatile process for growing crystals made from compound semiconductor materials that will allow them be integrated onto silicon wafers. This is an important step toward making future computer chips that will allow integrated circuits to continue shrinking in size and cost even as they increase in performance.
A Si quantum dot (QD)-based hybrid inorganic/organic light-emitting diode (LED) that exhibits white-blue electroluminescence has been fabricated by a Hiroshima Univ. team. A hybrid LED is expected to be a next-generation illumination device for producing flexible lighting and display, and this is achieved for the Si QD-based white-blue LED.
Stanford Univ. electrical engineer Jelena Vuckovic wants to make computers faster and more efficient by reinventing how they send data back and forth between chips, where the work is done. In computers today, data is pushed through wires as a stream of electrons. That takes a lot of power, which helps explain why laptops get so warm.
Quantum physics is full of fascinating phenomena. For example, the cat from the famous thought experiment by the physicist Erwin Schrodinger. The cat can be dead and alive at once, since its life depends on the quantum mechanically determined state of a radioactively decaying atom which, in turn, releases toxic gas into the cat's cage. As long as one hasn't measured the state of the atom, one knows nothing about the cat's health either.
Oscilloscopes are a staple for any individual or firm involved with electronics and their functioning due to their versatility. An oscilloscope, also called a scope, is a type of electronic test equipment that allows signal voltages to be viewed, usually as a 2-D graph of one or more electrical potential differences (vertical axis) plotted as a function of time or of some other voltage (horizontal axis).
In what marks a significant step forward for artificial intelligence, researchers at Univ. of California, Santa Barbara, have demonstrated the functionality of a simple artificial neural circuit. For the first time, a circuit of about 100 artificial synapses was proved to perform a simple version of a typical human task: image classification.
Researchers studying how the brain makes decisions have, for the first time, recorded the moment-by-moment fluctuations in brain signals that occur when a monkey making free choices has a change of mind. The findings result from experiments led by electrical engineering Prof. Krishna Shenoy, whose Stanford Univ. lab focuses on movement control and neural prostheses controlled by the user's brain.
It’s often said that no two human fingerprints are exactly alike. For that reason, police often use them as evidence to link suspects to crime scenes. The same goes for silicon chips: Manufacturing processes cause microscopic variations in chips that are unpredictable, permanent, and effectively impossible to clone.
Researchers at Oregon State Univ. have invented a new technology that can increase the bandwidth of Wi-Fi systems by 10 times, using LED lights to transmit information. The technology could be integrated with existing Wi-Fi systems to reduce bandwidth problems in crowded locations, such as airport terminals or coffee shops, and in homes where several people have multiple Wi-Fi devices.
Massachusetts Institute of Technology researchers have developed a new, ultrasensitive magnetic-field detector that is 1,000 times more energy-efficient than its predecessors. It could lead to miniaturized, battery-powered devices for medical and materials imaging, contraband detection and even geological exploration.
Engineers have combined innovative optical technology with nanocomposite thin films to create a new type of sensor that is inexpensive, fast, highly sensitive and able to detect and analyze a wide range of gases. The technology might find applications in everything from environmental monitoring to airport security or testing blood alcohol levels.
Imagine you need to have an almost exact copy of an object. Now imagine that you can just pull your smartphone out of your pocket, take a snapshot with its integrated 3-D imager, send it to your 3-D printer and, within minutes, you have reproduced a replica accurate to within microns of the original object. This feat may soon be possible because of a new, tiny high-resolution 3-D imager developed at Caltech.
Scientists from ETH Zurich have developed a thermometer that is at least 100 times more sensitive than previous temperature sensors. It consists of a bio-synthetic hybrid material of tobacco cells and nanotubes. Humans have been inspired by nature since the beginning of time. We mimic nature to develop new technologies, with examples ranging from machinery to pharmaceuticals to new materials.
A device resembling a plastic honeycomb, yet infinitely smaller than a bee’s stinger, can steer light beams around tighter curves than ever before possible, while keeping the integrity and intensity of the beam intact. The work introduces a more effective way to transmit data rapidly on electronic circuit boards by using light.
From computers, tablets and smartphones to cars, homes and public transportation, our world is more digitally connected every day. The technology required to support the exchange of massive quantities of data is critical. That's why scientists and engineers are intent on developing faster computing units capable of supporting much larger amounts of data transfer and data processing.
Phosphorus, a highly reactive element commonly found in match heads, tracer bullets and fertilizers, can be turned into a stable crystalline form known as black phosphorus. In a new study, researchers from the Univ. of Minnesota used an ultra-thin black phosphorus film, only 20 layers of atoms, to demonstrate high-speed data communication on nanoscale optical circuits.
Organic light-emitting diodes (OLEDs), which are made from carbon-containing materials, have the potential to revolutionize future display technologies, making low-power displays so thin they'll wrap or fold around other structures, for instance. Conventional LCD displays must be backlit by either fluorescent light bulbs or conventional LEDs whereas OLEDs don't require back lighting.
Univ. of Utah engineers have discovered a new approach for designing filters capable of separating different frequencies in the terahertz spectrum, the next generation of communications bandwidth that could allow cellphone users and Internet surfers to download data a thousand times faster than today. Once the filter is designed, it can be fabricated using an off-the-shelf inkjet printer.
How did fuzzy logic help a group of researchers in Tunisia and Algeria create an ideal photovoltaic system that obeys the supply-and-demand principle and its delicate balance? In the Journal of Renewable & Sustainable Energy, the group describes a new sizing system of a solar array and a battery in a standalone photovoltaic system that is based on fuzzy logic.
At this year’s Consumer Electronics Show, the big theme was the “Internet of things”: the idea that everything in the human environment could be equipped with sensors and processors that can exchange data, helping with maintenance and the coordination of tasks. Realizing that vision, however, requires transmitters that are powerful enough to broadcast to devices dozens of yards away but energy-efficient enough to last for months.
Computer chips’ clocks have stopped getting faster. To keep delivering performance improvements, chipmakers are instead giving chips more processing units, or cores, which can execute computations in parallel. But the ways in which a chip carves up computations can make a big difference to performance.
Frequency combs are the rulers of light. By counting a wavelength's many oscillations, they measure distance and time with extraordinary precision and speed. Since the discovery of optical frequency combs in the 1990s, many applications in metrology, spectroscopy and frequency synthesis have emerged.
The engineering world just became even more colorful. Northwestern Univ. researchers have created a new technique that can transform silver into any color of the rainbow. Their simple method is a fast, low-cost alternative to color filters currently used in electronic displays and monitors.
A breakthrough by a team of researchers could lead to the more precise transfer of information in computer chips, as well as new types of optical materials for light emission and lasers. The researchers were able to control light at tiny lengths around 500 nm, smaller than the light’s own wavelength, by using random crystal lattice structures to counteract light diffraction.
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