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Research & Technology News
Nanosensors Used to Track Progression of Obesity-Related Diseases
KINGSTON, R.I., October 6, 2017 — According to a New England Journal of Medicine study, more than one third of the world's population is overweight or obese. And, these weight issues can often lead to other health concerns. Researchers from the University of Rhode Island, the Memorial Sloan Kettering Cancer Center in New York and the Weil Cornell Graduate School of Medical Sciences have created an optical reporter via nanosensor, which is capable of detecting the progression of obesity-related diseases. The
Catheter Combines Ultrasound and Multispectral Fluorescence to Measure Arterial Plaque
DAVIS, Calif., Oct. 6, 2017 — A novel cardiac catheter probe combines intravascular ultrasound (IVUS) and fluorescence lifetime imaging (FLIm) in a single device that can image the arteries of a living heart. The catheter can simultaneously retrieve structural and biochemical...
Uncharted Waters
ROCHESTER, N.Y., Oct. 4, 2017 — As the saying goes, "difficult is done at once; the impossible takes a little longer." It took Xi-Cheng Zhang, an optics professor at the University of Rochester, nearly a decade to generate a terahertz wave from water — an achievement that...
Caltech Researchers Develop On-Chip Nanoscale Optical Quantum Memory
PASADENA, Calif., Oct. 4, 2017 — A computer chip with nanoscale optical quantum memory has been developed that is analogous to a traditional memory chip in a computer. An international team led by engineers at Caltech took advantage of the peculiar features of quantum mechanics,...
On-Chip Photonic Synapse Mimics Workings of Neural Synapse
EXETER, England, Oct. 4, 2017 — Photonic computer chips that imitates the way the brain’s synapses work to store and process information — only at speeds a thousand times faster than those of the human brain — could pave the way for computers that work in a way...
Laser-Based Method Could Detect Chemicals Remotely
ANN ARBOR, Mich., Oct. 3, 2017 — Two techniques have been combined to develop a laser-based method that could be used to detect chemicals such as explosives and gases quickly and accurately. One technique, multi-dimensional coherent spectroscopy (MDCS) uses ultrashort laser pulses...
Infrared Satellite Data Predicts End of Volcanic Eruptions
Oct 3, 2017 — The eruption of Mount St. Helens in Washington in 1980 took many by surprise, considering the volcano hadn’t been active in more than a century. The same held true in Chile after the Chaitén volcano erupted in 2008 following thousands...
Better Beer, Bread Thanks to Supercontinuum Lasers
Oct 2, 2017 — Most beer is made from four primary ingredients: grains, hops, yeast and water. The basic ingredients for bread are flour, yeast, water and salt. Throw a supercontinuum laser combined with near-IR into the mix and researchers say they can produce...
Advances in Aerial Thermography Could Transform Archeological Methods
HANOVER, N.H., Oct. 2, 2017 — Today's radiometric thermal cameras, coupled with small, inexpensive drones controlled by a smartphone or tablet, have made aerial thermography more accurate, comprehensive and accessible than previous technologies. Multiple aerial images can now be...
All-Optical Polarization Control Could Allow Faster Data Transfer
LONDON, Sept. 29, 2017 — A breakthrough in rapid polarization switching with an all-optical polarization control could allow faster data transfer and open new areas of nanoresearch, enabling researchers to learn more about unseen nanoscale worlds such as drug chemistry and...
Light, Oxygen and Moisture Combine to Mend Defects in Industrial Perovskite Films
CAMBRIDGE, England, Sept. 28, 2017 — Exposure to light combined with exposure to humidity and oxygen has been shown to permanently correct defects in the molecular structure of perovskites, resulting in minimal non-radiative losses and properties approaching those of perovskite single...
Photorealistic 3D Renderings Accurately Digitize Transparent Objects
KONGENS LYNGBY, Denmark, Sept. 28, 2017 — The ability to create detailed, 3D digital versions of clear objects and their surroundings has been difficult for researchers because of the different modalities required to digitize objects with diffuse reflectance properties. Scientists from the...
Scaled-Up Mirror-Coating Technology Could Improve Telescope Efficiency
SANTA CRUZ, Calif., Sept. 28, 2017 — Scientists are adapting atomic layer deposition (ALD), a technique widely used in the microelectronics industry, to develop protected silver coatings suitable for telescope mirrors. These coatings could help telescopes maintain high reflectivity at...
Light Pulses Quickly Drive Electronic Currents Through Graphene
ERLANGEN, Germany, Sept. 27, 2017 — Physicists have used light to control an electronic current through graphene within one femtosecond. According to the research team this speed could be more than a thousand times faster than the speed of current transistors. While it’s...
Ballistic Photon Imaging Locates Fiber Optic Instruments In Vivo
EDINBURGH, Sept. 27, 2017 — A camera that detects light sources inside the human body could be used at a patient’s bedside to track and guide the location of an endoscope, or other fiber-optic instrument, in the body without the need for x-rays or other equipment. Light...
Photosensitizer Enhances The Anticancer Properties of an Antimalarial Drug
SINGAPORE, Sept. 26, 2017 — Scientists have shown that the anti-cancer properties of artemisinin, an anti-malarial drug that is also a promising alternative cancer treatment, could be enhanced potentially ten-fold when used with the photosensitizer aminolaevulinic acid (ALA)....
Quantum Repeater Could Speed, Secure Long-Distance Quantum Communication
JOHANNESBURG, South Africa, Sept. 25, 2017 — Researchers have experimentally demonstrated photon entanglement swapping and teleportation for multiple orbital angular momentum (OAM) states of light. When OAM is used as an information carrier, photon states can decay over long distances; thus a...
Converting Light to Sound Waves Leads to Hybrid Chip for Data Transfer
CAMPERDOWN, Australia, Sept. 22, 2017 — Researchers have demonstrated a way to transfer optical information coherently to an acoustic hypersound wave on a photonic microchip. Optical information is extracted using a reverse process. A coherent buffer can store the photonic information in...
QD Lasers Epitaxially Grown on Silicon Could Be Smallest to Date
HONG KONG, Sept. 21, 2017 — Record-small electrically pumped micro-lasers have been epitaxially grown on industry standard (001) silicon substrates. Continuous-wave lasing up to 100 degrees Celsius was demonstrated at 1.3 μm communication wavelength. Researchers achieved a...
Underwater Video Achieves Quality by Improving Bandwidth
THUWAL, Saudi Arabia, Sept. 20, 2017 — Underwater wireless optical communication (UWOC) systems could be a flexible and cost-effective technology for streaming high-quality underwater video images. Existing technologies like acoustic communications and low-frequency radio waves are...
Physicists Identify Optimum Conditions for Laser Plasma Acceleration
DRESDEN, Germany, Sept. 19, 2017 — Laser plasma acceleration, which has a smaller footprint and higher peak currents than conventional electron accelerators, could be the basis for the next generation of compact light sources. To make laser plasma acceleration practical for future...
VLBI, Gaia Data Could Improve Our Understanding of Quasars
MOSCOW, Sept. 18, 2017 — By analyzing unexpected discrepancies between high-precision observations conducted by an international network of radio telescopes and that of Gaia, the space observatory of the European Space Agency, scientists have determined the properties of...
Graphene-Based Absorbers Could Enable Ultrafast Lasers in THz Range
MODENA, Italy, Sept. 15, 2017 — A terahertz (THz) saturable absorber has been created using printable graphene inks produced by liquid phase exfoliation (LPE) and deposited by transfer coating and ink jet printing. A THz saturable absorber, which decreases the absorption of light...
Device Allows Standard Cameras to Produce Hyperspectral Images
BEER-SHEVA, Israel, Sept. 14, 2017 — A miniaturized hyperspectral device has been developed as an add-on for a standard camera, and could be used to repurpose a camera for generating hyperspectral images and videos for a range of applications. Developers of the device used compressive...
Cloaking Approach Prevents Light Scattering in Opaque Objects
VIENNA, Sept. 14, 2017 — In a novel approach to cloaking technology, researchers irradiated an opaque material from above, using a specific wave pattern that allowed light waves from the left to pass through the material without any obstruction. The researchers believe that...
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