Researchers at NIST have reported the first observation of the spin Hall effect in a Bose-Einstein condensate, a cloud of ultracold atoms acting as a single quantum object. As one consequence, they made the atoms, which spin like a child's top, skew to one side or the other, by an amount dependent on the spin direction. The phenomenon is a step toward applications in "atomtronics".
Engineers at the University of Minnesota’s College of Science and Engineering have developed a new noninvasive system that allows people to control a flying robot using only their mind. The first-of-its-kind noninvasive system has the potential to help people with disabilities.
It's a gnawing frustration of modern office life. You're sitting quietly—too quietly—in an office or carrel, and suddenly the lights go off. The U.S. Dept. of Energy's National Renewable Energy Laboratory has developed and made available for license the Image Processing Occupancy Sensor, which combines an inexpensive camera and computer vision algorithms that can recognize the presence of human occupants.
A team of researchers, including members of the Univ. of Chicago, highlight the power of emerging quantum technologies in two recently published papers. These technologies exploit quantum mechanics, the physics that dominates the atomic world, to perform disparate tasks such as nanoscale temperature measurement and processing quantum information with lasers.
Researchers in Munich, Germany, have recently published work that describes experiments in which inexpensive semiconductor lasers have produced high-energy light pulses as short as 60 picoseconds without the drawbacks of previous approaches in terms of power consumption and device size. They say the new technique, based on the use of a new Fourier domain mode-locked laser, could open the door to subpicosecond pulses.
Tim Samaras, his son Paul, and colleague Carl Young died Friday night when an EF3 tornado with winds up to 165 mph turned on them near El Reno, Okla. Respected tornado researchers who used scientific equipment to help gather storm data, and shared their dramatic videos with television viewers and weather researchers, the three men died chasing a storm that killed 13 in Oklahoma City and its suburbs.
In this video, Tim Samaras from the National Geographic Channel Storm Chasers talks about his passion for chasing and studying storm systems. He explains how he used National Instruments’ (NI) LabVIEW and CompactDAQ in a new instrument that is deployed on the ground in front of a tornado. After the storm he uses another NI application, DIAdem, to view the data that was collected.
Cameras fitted with a new sensor will soon be able to take clear and sharp photos in dim conditions, thanks to a new image sensor invented at Nanyang Technological University. The new sensor made from graphene, is believed to be the first to be able to detect broad spectrum light, from the visible to mid-infrared, with high photoresponse or sensitivity.
Go to about any public square, and you see pigeons pecking at the ground, always in search of crumbs dropped by a passerby. While the pigeons’ scavenging may seem random, new research by psychologists at the University of Iowa suggest the birds are capable of making highly intelligent choices, sometimes with problem-solving skills to match.
Leaders of the National Science Foundation (NSF) and the Semiconductor Research Corporation (SRC), the world's leading university-research consortium for semiconductors and related technologies, this week announced 18 new projects funded through a joint initiative to address research challenges in the design of failure-resistant circuits and systems.
University of Illinois at Urbana-Champaign researchers have developed a cradle and app for the iPhone that uses the phone’s built-in camera and processing power as a biosensor to detect toxins, proteins, bacteria, viruses and other molecules. Having such sensitive biosensing capabilities in the field could enable on-the-spot tracking of groundwater contamination, or provide immediate and inexpensive medical diagnostic tests.
Technology that’s used in smartphones and other electronic devices also is being used by veterinarians at the University of Illinois to help horses recover safely from anesthesia. The technology, known as accelerometers, are portable data recorders that capture information on motion, vibration, and impact
Researchers have created a new type of transparent electrode that might find uses in solar cells, flexible displays for computers and consumer electronics, and future "optoelectronic" circuits for sensors and information processing. The electrode is made of silver nanowires covered with a material called graphene, an extremely thin layer of carbon.
Magnetic memories store bits of information in discrete units whose electron spins all line up in parallel, pointing one way or the opposite to signify a one or a zero. At the Advanced Light Source, Lawrence Berkeley National Laboratory scientists recently joined an international team to advance a new concept in magnetic memory, one in which spin orientation is controlled in magnetic nanodisks, allowing multi-bit storage.
Meeting the demand for more data storage in smaller volumes means using materials made up of ever-smaller magnets, or nanomagnets. One promising material for a potential new generation of recording media is an alloy of iron and platinum with an ordered crystal structure.
Pulsars rotate rapidly, emitting powerful and regular beams of radiation that are seen as flashes of light, blinking on and off at intervals from seconds to milliseconds. Their predictability could be useful for future navigation systems. Built to test and validate next-generation X-ray navigation technology, the Goddard X-ray Navigation Laboratory Testbed will demonstrate the feasibility of this approach.
Northwestern University researchers have recently developed a graphene-based ink that is highly conductive and tolerant to bending, and they have used it to inkjet-print graphene patterns that could be used for extremely detailed, conductive electrodes. The resulting patterns are 250 times more conductive than previous attempts to print graphene-based electronic patterns and could be a step toward low-cost, foldable electronics.
A team of researchers at Columbia Engineering has used miniaturized electronics to measure the activity of individual ion-channel proteins with temporal resolution as fine as one microsecond, producing the fastest recordings of single ion channels ever performed. Ion channels are biomolecules that allow charged atoms to flow in and out of cells, and they are an important work-horse in cell signaling, sensing, and energetics.
A tiny new camera developed at an Illinois university is giving researchers a bug's eye view. The camera created by a research team at the University of Illinois at Urbana-Champaign is about the size of a penny and mimics insects' bulging eyes. It features 180 micro-lenses, giving it a panoramic field of view and the ability to focus simultaneously on objects at different depths.
University of Toronto engineering researchers, working with colleagues from Carnegie Mellon University, have published new insights into how materials transfer heat, which could lead eventually to smaller, more powerful electronic devices.
Researchers in Europe have developed a new experimental system to gain accurate information on mechanical values and properties of any microelectromechanical (MEMS) device through electrical measurement. The technique works by applying a current across the device with a varying frequency and analyzes the harmonic content of the output voltage of the component parts.
An international collaboration led by researchers at NIST has demonstrated a novel temporal filtering approach that improves the performance of triggered single photon sources based on solid-state quantum emitters. The technique is compatible with a broad class of photon sources, and is expected to provide significant improvements in areas important for applications in photonic quantum information science.
From powerful computers to super-sensitive medical and environmental detectors that are faster, smaller, and use less energy—yes, we want them, but how do we get them? In research that is helping to lay the groundwork for the electronics of the future, University of Delaware scientists have confirmed the presence of a magnetic field generated by electrons which scientists had theorized existed, but that had never been proven until now.
A robotic sensor that won an R&D 100 Award in 2009 has been put to use by Woods Hole Oceanographic Institution (WHOI) in Gulf of Maine coastal waters to monitor the way red tides behave. These harmful algal blooms, which generate a potentially fatal toxin, can be a challenge to track or predict. The Environmental Sample Processors have been remotely deployed and should simplify and enhance this effort.
Swedish and Spanish engineers have created a system of sensors that detects fruit odors more effectively than the human sense of smell. For now, the device, which has 32 sensors and can process scent data in real time, can distinguish between the odorous compounds emitted by pears and apples, but the system can be tailored to other applications.