A team of engineers has developed a new acousto-optic device that can shape and steer beams of light at speeds never before achieved. The new technology will enable better optical devices to be made, such as holographs that can move rapidly in real time.
In 2007, Google unleashed a fleet of cars with roof-mounted cameras to provide street-level images of roads around the world. Now Massachusetts Institute of Technology spinout Essess is bringing similar “drive-by” innovations to energy efficiency in homes and businesses.
With drug-resistant bacteria on the rise, even common infections that were easily controlled for decades are proving trickier to treat with standard antibiotics. New drugs are desperately needed, but so are ways to maximize the effective lifespan of these drugs. To accomplish that, Duke Univ. researchers used software they developed to predict a constantly evolving infectious bacterium's countermoves to one of these new drugs ahead of time.
In the race to design the world's first universal quantum computer, a special kind of diamond defect called a nitrogen vacancy (NV) center is playing a big role. NV centers consist of a nitrogen atom and a vacant site that together replace two adjacent carbon atoms in diamond crystal. The defects can record or store quantum information and transmit it in the form of light.
Sony appears to have a win-win with "The Interview." Not only did the studio score a moral victory by releasing the film in the face of hacker threats, the movie made at least $15 million from more than 2 million digital rentals and purchases in its first four days.
Sony's "The Interview" has been a hacking target, a punchline and a political lightning rod. Now, with its release online at the same time it debuts in theaters, it has a new role: a test for a new kind of movie release.
An hours-long Internet outage Tuesday in one of the world's least-wired countries was probably more inconvenient to foreigners than to North Korean residents, most of whom have never gone online. Even for wired Koreans south of the heavily armed border separating the rivals, the temporary outage made little difference - southerners are banned by law from accessing North Korean websites.
Stanford computer scientists have extended two popular web browsers to make surfing safer while also empowering web developers to deliver creative new services.
Researchers from the University of Southampton have revealed a breakthrough in optical fiber communications. Academics have collaborated to develop an approach that enables direct modulation of laser currents to be used to generate highly advanced modulation format signals.
Cars that run on natural gas are touted as efficient and environmentally friendly, but getting enough gas onboard to make them practical is a hurdle. A new study led by researchers at Rice University promises to help.
A team at Cornell University has made a breakthrough in that direction with a room-temperature magnetoelectric memory device. Equivalent to one computer bit, it exhibits the holy grail of next-generation nonvolatile memory: magnetic switchability, in two steps, with nothing but an electric field.
A German-Spanish team working with researchers from the Max Planck Institute for Nuclear Physics in Heidelberg has now become the first to image the motion of the two electrons in a helium atom and even to control this electronic partner dance.
Spotting molecule-sized features may become both easier and more accurate with a sensor developed at NIST. With their new design, NIST scientists may have found a way to sidestep some of the problems in calibrating atomic force microscopes (AFMs). The AFM is one of the main scientific workhorses of the nano age.
In a development that holds promise for future magnetic memory and logic devices, researchers have successfully used an electric field to reverse the magnetization direction in a multiferroic spintronic device at room temperature. This demonstration, which runs counter to conventional scientific wisdom, points a new way towards spintronics and smaller, faster and cheaper ways of storing and processing data.
Researchers at NYU Langone Medical Center have developed new technology that can assess the location and impact of a brain injury merely by tracking the eye movements of patients as they watch music videos for less than four minutes, according to a study published online in the Journal of Neurosurgery.
Massachusetts Institute of Technology researchers have discovered a new mathematical relationship—between material thickness, temperature and electrical resistance—that appears to hold in all superconductors. The result could shed light on the nature of superconductivity and could also lead to better-engineered superconducting circuits for applications like quantum computing and ultra-low-power computing.
A team of researchers have demonstrated a way to emit and control quantum light generated using a chip made from silicon—one of the most widely used materials for modern electronics. The researchers say practical applications of quantum optics will seem more feasible if devices for generating and controlling these photons can be manufactured using conventional materials from the semiconductor industry.
The Internet is a massive place, linking billions of devices which share data that should exceed the zettabyte mark by 2016. Even as data transfer grows, the number of devices connected to the Internet will soon experience a geometric rise as well.
Credit card fraud and identify theft are serious problems for consumers and industries. Though corporations and individuals work to improve safeguards, it has become increasingly difficult to protect financial data and personal information from criminal activity. Fortunately, new insights into quantum physics may soon offer a solution.
New findings could provide a pathway toward a kind of 2-D microchip that would make use of a characteristic of electrons other than their electrical charge, as in conventional electronics. The new approach is dubbed “valleytronics,” because it makes use of properties of an electron that can be depicted as a pair of deep valleys on a graph of their traits.
Reality isn’t always what it seems, as we learned in the groundbreaking film The Matrix. Neo, the movie’s hero, learns this lesson from a young monk who holds a spoon that bends and twists on its own, as if by magic. “Do not try and bend the spoon,” the boy tells Neo. “That’s impossible. Instead only try to realize the truth.”
Cities like Miami are all too familiar with hurricane-related power outages. But a Johns Hopkins Univ. analysis finds climate change will give other major metro areas a lot to worry about in the future. Johns Hopkins engineers created a computer model to predict the increasing vulnerability of power grids in major coastal cities during hurricanes.
When the people whose houses hug the narrow warren of streets paralleling the busiest urban freeway in America began to see bumper-to-bumper traffic crawling by their homes a year or so ago, they were baffled. When word spread that the explosively popular new smartphone app Waze was sending many of those cars through their neighborhood in a quest to shave five minutes off a daily rush-hour commute, they were angry and ready to fight back.
In the same way as we now connect computers in networks through optical signals, it could also be possible to connect future quantum computers in a quantum Internet. The optical signals would then consist of individual light particles or photons. One prerequisite for a working quantum Internet is control of the shape of these photons.