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Research & Technology News

Lithography, DNA Used to Build Structures That Could Lead to New Metamaterials
EVANSTON, Ill., Jan. 19, 2018 — Researchers have developed a technique for creating optical structures that could lead to new classes of optical materials and devices. Their technique combines a traditional fabrication method, top-down lithography with a new method, programmable self-assembly driven by DNA. They used the technique to build optically active superlattices of discrete nanoparticle architectures on a gold surface over large areas. These superlattices, which would be difficult to construct using typical assembly
Microscopic 3D Printing Could Build Structures Inside the Body
LAUSANNE, Switzerland, Jan. 17, 2018 — Researchers have used ultrathin optical fibers to create microscopic structures via laser-based 3D printing. The microstructures, which were created on a microscope slide, exhibited a 1.0-micron lateral and 21.5-micron axial printing resolution. The...
Discovery Could Lead to Materials with Brighter, Faster Light Emission
ZÜRICH, Switzerland, Jan. 16, 2017 — Scientists have discovered why a certain class of nanocrystals — caesium lead halide quantum dots &mdash shines in such bright colors. They have also confirmed that these nanocrystals emit light extremely quickly. Previously studied...
Fiber OLEDs Developed For Wearable Displays
DAEJEON, South Korea, Jan. 15, 2018 — Researchers have fabricated highly efficient OLEDs on an ultra-thin fiber for use in wearable displays. The weavable OLEDs, which are based on a simple, low-temperature solution process, achieved performance values comparable to OLEDs fabricated on...
Biomicroscopic System Could Yield More Effective Cancer Treatment
DAEGU, South Korea, Jan. 9, 2017 — A converged biomicroscope based on high frequency ultrasound and optical spectroscopy could overcome the challenges of existing imaging systems for tumor analysis and provide physicians with the means to avoid unwanted outcomes such as cancer...
Engineered Quantum Dots Could Help Lower Solar Power Cost
LOS ALAMOS, N.M., Jan. 8, 2017 — A window architecture that uses two different layers of low-cost colloidal quantum dots, tuned to absorb different parts of the solar spectrum, could be used to build double-pane solar windows that generate electricity more efficiently while...
Optically Imaging the Fourth Dimension
ZÜRICH, Jan. 8, 2017 — A visual representation of the fourth dimension has been observed in two independent experiments. The theoretical groundwork for these experiments was laid by researchers at ETH Zürich. In both experiments the quantum Hall effect was applied to...
Technique Could Offer Gentler Approach to Making Hybrid Photovoltaic Materials
DURHAM, N.C., Jan. 5, 2018 — DURHAM, N.C., Jan. 5, 2018 — A thin-film deposition method for creating hybrid thin-film materials using pulsed laser evaporation, applied to the fabrication of perovskite solar cells, could lead to a means to develop next-gen solar materials....
Gov. Cuomo Proposes Photonics Attraction Fund
ALBANY, N.Y., Jan. 4, 2018 — During his State of the State address, New York Governor Andrew Cuomo proposed a $30 million fund to help the photonics cluster in Rochester. He also endorsed a plan to expand the city's development along the Genesee River. The proposal brings...
Iridescent Spiders Provide Inspiration for Optics Design
AKRON, Ohio, Jan. 4, 2018 — Could the courtship habits of a tiny spider provide the basis for a novel design for miniature optics? An international research team studied the unique iridescent signal produced by miniature Australian peacock spiders during their courtship...
Columbia Researchers Focus on Blue Light’s Adverse Sleeping Effects
NEW YORK, Jan. 4, 2018 — Knowing the prevalence of nighttime gadget use, researchers from Columbia University Medical Center have tested a method to reduce the adverse effects of evening ambient light exposure, while still allowing use of blue light-emitting devices....
53-Qubit Quantum Simulator Observes Quantum Magnetism in Action
COLLEGE PARK, Md., Jan. 2, 2018 — Two independent teams of scientists have used more than 50 interacting atomic quantum bits (qubits) to mimic magnetic quantum matter, setting what they believe to be a new record for quantum simulation. In recent years, scientists have controlled 10...
Laser Welding Technique Expands Industrial Use of AHS-Grade Steel Alloys
SÃO PAULO, Brazil, Jan. 2, 2018 — A technique for high-temperature laser welding has been developed for use with advanced high-strength (AHS) steel alloys. High-strength steels exhibit improved formability and collision resilience compared to conventional steel grades. However, some...
George Mason, Adobe Collaborate on Imaging Research
FARIFAX, Va., Jan. 2, 2018 — The department of computer science at George Mason University is working with Adobe Systems Inc. on preliminary research for imaging and video streaming. "Truly for us it has been an excellent industrial-academic partnership not just because of how...
Time-Bin Encoding Technique Enables High-Rate QKD for Cybersecurity
SINGAPORE, Dec. 29, 2017 — Researchers have developed a quantum key distribution (QKD) system that enables a greater number of secret bits to be packed into a single photon. The new technique allows for two secret bits in a single photon, with a secret key rate of 26.2...
Researchers Use Multiplexing to Improve Quantum Memory Capacity
WARSAW, Poland, Dec. 29, 2017 — Researchers have built a quantum memory-enable source of spatially structured nonclassical light, based on a principle of wavevector multiplexing. The high-capacity memory, which is based on a group of laser-cooled atoms, can store up to 665 quantum...
Researchers Improve ToF Resolution 1000-Fold Using Computational Approach
CAMBRIDGE, Mass., Dec. 28, 2017 — In a novel approach to time-of-flight (ToF) imaging, researchers correlated the principle of heterodyning to increase ToF depth resolution 1,000-fold. Higher ToF resolution could enable accurate distance measurements through fog, removing a major...
Laser Scanner Could Help Diagnose Disease Before Vision Loss Occurs
BURNABY, British Columbia, Dec. 28, 2017 — A retinal imaging scanner has been developed that can produce high-resolution, 3D cross-sectional images of the retina, including individual photoreceptors and fine capillaries. The scanner is extremely compact (about the size of a shoebox), making...
Lensless Camera Creates Detailed 3D Images Without Scanning
BERKELEY, Calif., Dec. 27, 2017 — A new camera has been developed that produces 3D images from a single 2D image without using any lenses. Called DiffuserCam, the camera consists only of a diffuser placed a few millimeters in front of an image sensor. DiffuserCam integrates concepts...
Mounted Cameras Track Location of Autonomous Vehicles Underground
BRISBANE, Australia, Dec. 27, 2017 — A positioning technology uses vehicle-mounted cameras supported by algorithms to track the position of a vehicle in underground tunnels to within yards of its location. This technology could increase efficiency and safety in mining operations....
Changchun Team Investigates Threshold and Light Amplification in Electrically Pumped OSLDs
CHANGCHUN, China, Dec. 22, 2017 — Organic semiconductor laser diodes (OSLDs) can be prepared using simple processing technologies and can be integrated easily with other optoelectronic devices. This makes them attractive for use in low-cost, compact, flexible and tunable lasers with...
Electron-Tunneling Nanomaterial Could Boost Optoelectronics and Sensing
LONDON, Dec. 22, 2017 — A material that uses quantum effects and allows precise control of hot electrons shows potential for use in chemical research, optoelectronics and sensing. Scientists at King’s College London developed the device which controls high energy...
Researchers Generate a Directional, Spin-Polarized Photocurrent Using Topological Insulator
MINNEAPOLIS/ST. PAUL, Minn., Dec. 21, 2017 — Researchers have developed a device for controlling the direction of photocurrent without using an electric voltage. This device, according to researchers, could provide a way of implementing coupled spin-orbit interaction between electrons and...
Spectroscopy Instrument to Aid in the Search for Extraterrestrial Life
HAMPTON, Va., Dec. 21, 2017 — Could life exist outside of Earth? All we know for sure is that scientists will keep exploring this question until they have a definitive answer. To that end, a compact spectroscopy instrument has been developed for use in planetary exploration. The...
Optofluidic Smart Glass Heats and Cools Efficiently, Inexpensively
NEWARK, Del., Dec. 20, 2017 — We may not be able to control the weather, but new switchable window technology using optofluidic smart glass could someday be used to keep our vehicles, businesses and homes comfortable regardless of the temperature outside. This smart window...

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