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Research & Technology News
‘Time-Folded Optics’ Can Enhance Ultrafast Camera Capabilities
CAMBRIDGE, Mass., Aug. 13, 2018 — Researchers have used time as an additional dimension in the design of camera optics, and have demonstrated that by “folding” large spaces in time using time-resolved cavities, new camera capabilities can be added without loss of targeted information. Images are captured based on the timing of the light reflected inside the optics. Mirrors inside the lens system are used to reflect light signals. Specifically, a set of semi-reflective parallel mirrors reduces, or
QCL, THz Frequency Combs May Become the Future of Wi-Fi
CAMBRIDGE, Mass., Aug. 13, 2018 — Wi-Fi and cellular data traffic are increasing exponentially, but unless the capacity of wireless links can be increased, all that traffic is bound to lead to bottlenecks. Upcoming 5G networks are a temporary fix. Researchers are focusing on...
Machine Learning Technique Can Rebuild Images That Go Through Multimode Fibers
LAUSANNE, Switzerland, Aug. 10, 2018 — Using a deep neural network (DNN) that imitates the way the brain processes images, researchers reconstructed images transmitted over multimode optical fibers at distances of up to 1 km. In the same way the human brain learns to recognize and...
Low-Level Light Therapy Alleviates,Treats Digital Ulcers
MANCHESTER, England, Aug. 9, 2018 — A lamp containing 32 bulbs emitting IR, red, or UV light for use in low-level light therapy (LLLT) was tested on finger ulcers caused by an autoimmune condition. Researcher Michael Hughes, from the University of Manchester, said that the promising...
Capasso Group Designs Metasurface Polarization Optics
CAMBRIDGE, Mass., Aug. 9, 2018 — The Capasso Group at Harvard University's John A. Paulson School of Engineering and Applied Sciences (SEAS) is focusing much of its research on metasurfaces and metasurface polarization optics. The metasurfaces are made of titanium dioxide and...
Photoacoustic Ultrasound Could Measure Periodontal Health
LA JOLLA, Calif., Aug. 9, 2018 — Researchers from University of California, San Diego used photoacoustic (optoacoustic) imaging with a contrast agent to measure pocket depths in swine models. The measurements were compared to those taken with a periodontal probe. Results showed...
Blue Light Excites Retinal, Intercepts Cellular Signaling in the Eye
TOLEDO, Ohio, Aug. 9, 2018 — An optical chemistry research study has shown how blue light from digital devices and the sun can cause the death of retinal molecules, increasing potential for age-related macular degeneration. Photoreceptor chromophore 11-cis retinal (11CR) and...
3D Printing Allows Fabrication of Cancer Research Probes
ABU DHABI, Aug. 8, 2018 — Researchers at NYU Abu Dhabi have used a 3D printer to create a functional, integrated and inexpensive microfluidic probe (MFP). Typically made of glass or silicon, MFPs are tiny scientific tools used to study, process, and manipulate live cell...
Glass Doped with Erbium Could Be Used for Optical Circuits
LEEDS, England, Aug. 8, 2018 — A material created by doping glass made from zinc, sodium, and tellurium with the rare-earth element erbium could be used for broadband planar waveguide amplifiers. Scientists have started testing planar waveguides for use in signal transmission in...
Purdue Developes 'Tornado' Lab-on-a-Chip with Nanotweezers
WEST LAFAYETTE, Ind., Aug. 8, 2018 — Purdue University researchers have developed a new class of optical nanotweezers that can rapidly trap and detect biomolecules, viruses, and DNA. The technology can also use light to detect cancer or improve the production of medications. This image...
Coating Technique Uses Solution, Not Heat, to Create OPV Interlayers
OSAKA and KANAZAWA, Japan, Aug. 7, 2018 — Researchers have developed a spin coating technique to create zinc-related oxide (ZnOx, ZnOHx) ultrathin films (ceramic films) for use as buffer layers for organic photovoltaic (OPV) cells. Buffer layers, also called OPV interlayers, separate...
Silicon-Based Optical Filter Splits Light Across a Range of Wavelengths
CAMBRIDGE, Mass., Aug. 7, 2018 — Researchers have designed a new optical filter on a chip that can process optical signals from across a very wide spectrum of light at once. The broadband, low-loss, transmissive dichroic filter can simultaneously achieve single-cutoff operation,...
Novel Material Demonstrates Quantum Properties
ORLANDO, Fla., Aug. 6, 2018 — Researchers have discovered a novel material with multiple quantum properties: Hf2Te2P, a material that is chemically composed of hafnium, tellurium, and phosphorus. The team is using angle-resolved photoemission spectroscopy (ARPES) and...
EU Creates Faster High-Capacity Internet Networks via Photonics
MILAN, Aug. 3, 2018 — EU Scientists are harnessing next-generation lasers to create light-speed broadband connections and to remove the data bottlenecks that could cause the internet to grind to a halt as demand increases. The EU-funded researchers from nine countries...
Fluorescent Probe Identifies Cancer Stem Cells in the Body
CHAMPAIGN, Ill., Aug. 3, 2018 — A fluorescent probe, called AlDeSense, has demonstrated the ability to find and track cancer stem cells (CSCs) in cultures of multiple human cancer cell lines as well as in live mice. The new probe is a small molecule that binds to an enzyme...
UCLA Researchers Create All-Optical Diffractive Deep Neural Network That is 3D Printed
LOS ANGELES, Aug. 3, 2018 — Using a 3D printer, a research team at the UCLA Samueli School of Engineering has created an artificial neural network that can analyze large volumes of data and identify objects at the speed of light. Called a diffractive deep neural network...
New Photodetector Enables NASA’s Thermal Imager
GREENBELT, Md., Aug. 2, 2018 — A compact thermal camera named the Compact Thermal Imager, or CTI, has been developed by NASA using photodetector technology known as strained-layer superlattice, or SLS. NASA's advanced detector technology, a strained-layer superlattice (SLS)...
Nanofabricated Metamaterial Could be Used in Solar Cells, Nano-Optics
MOSCOW, Aug. 2, 2018 — A new type of silicon metamaterial that has unique characteristics and is easy to manufacture promises a new direction in the development of metamaterials and their practical application to nano-optics and solar cells. Researchers from the National...
DIY Camera Tracking System Captures Plant Movement in Real Time
ST. PAUL, Minn., Aug. 2, 2018 — Farmers and plant breeders can now build their own automated field camera track system to collect data on dynamic plant traits, as changes occur. The do-it-yourself system can capture videos of plant movement under windy conditions and can capture...
Silicon Chip Distributes Optical Signals for Potential Use in Neural Networks
GAITHERSBURG, Md., July 31, 2018 — A silicon chip that distributes optical signals precisely across a miniature grid could lead to a novel design for neural networks. A research team from the National Institute of Standards and Technology (NIST) proposes to use light, rather than...
Physicists Show How Great Pyramid Can Focus Electromagnetic Energy
ST. PETERSBURG, Russia, July 31, 2018 — A study has revealed that the Great Pyramid of Giza can collect and concentrate electromagnetic energy. The results are a first step toward the further investigation of the Great Pyramid’s electromagnetic properties, said researchers. To...
Optical Fibers Can Detect Type of Materials Around Them
LAUSANNE, Switzerland, July 31, 2018 — Forward stimulated Brillouin scattering (FSBS), because of its resonating transverse acoustic waves, has the potential to facilitate detections in an optical fiber’s surroundings. Researchers have now demonstrated a technique to measure the...
Researchers Use Silicon Photonics to Create Quantum Random Number Generator
BRISTOL, England, July 30, 2018 — A chip-based device measuring just 1 sq mm has demonstrated the potential to generate quantum-based random numbers at gigabit (Gb)-per-second speeds, using minimal power. The tiny device, which is enabled by silicon photonics, could be used as a...
AIM Photonics Academy Teaches Fundamentals, Design of Photonic Integrated Circuits
CAMBRIDGE, Mass., July 30, 2018 — The American Institute for Manufacturing Integrated Photonics (AIM Photonics) is an industry-driven public-private partnership that focuses the nation’s premiere capabilities and expertise to capture critical global manufacturing leadership in...
Life-Size Holograms Revolutionize Videoconferencing
Jul 24, 2018 — Holograms are pretty much everywhere. You can find them in currency, at the doctor’s office, in entertainment, and in smartphone-based augmented reality. Many people may recall rap artist Tupac Shakur’s posthumous holographic “appearance” at the...
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