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Light Sources News
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 information about arterial plaque that could help physicians more reliably predict heart attacks. Researchers at University of California, Davis integrated IVUS and FLIm elements into a compact, single rotational intravascular catheter. An
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,...
XFEL Inaugurated in Germany
HAMBURG, Germany, Oct. 4, 2017 — The faster, more powerful European XFEL free-electron laser has been inaugurated, producing ultra-bright, trillion-photon X-ray flashes at a frequency 200× greater than the best preexisting free-electron lasers (FELs). The next-generation...
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Promise of Organic Photonics Looms Large
Oct 3, 2017 — Organic materials could supersede their inorganic cousins in many applications thanks to some unique and intriguing properties. From lasers, lighting and Li-Fi (light fidelity) to OLED TVs and solar cells, organic photonics offers a thin, flexible...
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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...
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...
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...
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...
Laser Light Source Delivers Superior Optical Control
Sep 25, 2017 — Legacy light sources such as halogen and metal halide produce highly collimated directional beams, but with short life and lower efficiency than LED sources. LEDs are highly efficient and long lasting, but are poor at creating beam angles below 10...
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...
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...
Zwerner, Thangadurai to Advise Versalume
SANTA CLARA, Calif., Sept. 12, 2017 — Lighting developer Versalume LLC has added two new advisors to accelerate growth and expand its international presence. Jeff Zwerner, head of design at One Medical Group, has 25 years of experience in launching brands and products. In addition to...
High-Speed Quantum Memory Retrieves Photons on Demand
BASEL, Switzerland, Sept. 11, 2017 — A quantum memory that offers relatively fast and simple retrieval could someday be used for building a “quantum Internet.” The technology stores photons in a gas of rubidium (RB) atoms and uses a laser to control the storage and...
Shellenberger Joins Miltec
STEVENSVILLE, Md., Sept. 11, 2017 — UV servicer and technology manufacturer Miltec Corp. has appointed Gene Shellenberger as a senior process engineer. Shellenberger brings more than 20 years of experience in engineering, manufacturing at coating. Prior to joining Miltec, he owned and...
Novel STEM for 3D Imaging Improves 3D Visualization of Curvilinear Nanostructures
LAUSANNE, Switzerland, Sept. 8, 2017 — Scientists have developed a scanning transmission electron microscopy (STEM) method that generates fast and reliable 3D images of curvilinear structures from a single sample orientation. This STEM method can acquire images in a single shot, making...
Ultrapure Green Light from Perovskite Could Enrich Next-Gen Displays
ZURICH, Sept. 7, 2017 — An ultra-thin LED, as bendable as a sheet of paper and able to emit pure green light, has been developed using nanomaterials and simple room-temperature processes. Until now high-temperature processes have been required to produce pure light using...
Optogenetics Used to Control Interorganellar Communication
COLLEGE STATION, Texas, Sept. 6, 2017 — Researchers are using optogenetics to tune communication between organelles within living cells. The optogenetics tools are being used to control the proteins that form the bridge between organelles, and to govern the length of the bridge at the...
Flexible, Fabric-Based OLEDs Unveiled
DAEJEON, South Korea, Aug. 28, 2017 — Researchers have developed fabric-based OLEDs that show high luminance and efficiency while maintaining the flexibility of the fabric. These fabrics could lead to soft wearable displays that bend and move with the wearer. Silicone-based LED jackets,...
Cartwright Joins Thomas Research Products/Norlux
ELGIN, Ill., Aug. 25, 2017 — Thomas Research Products/Norlux has appointed Brandon Cartwright as the company's director of new business development. The company, part of Hubbell Lighting Components, manufactures complete LED power and control solutions for OEMs and...
Diagnostic Tool Uses NIR to Detect Risk of Heart Attack, Stroke
COVENTRY, England, and MELBOURNE, Australia, Aug. 21, 2017 — Scientists increased the wavelength in a tool used to detect fatty deposit build-up in arteries to NIR wavelengths, and found that they could use the tool to selectively identify plaques with internal bleeding typically associated with high-risk...
From Solar Cells to LEDs, Improvements in Perovskite-Based Technology Accelerate
OKINAWA, Japan, Aug. 21, 2017 — In just seven years of development, the efficiency of perovskite solar cells has increased to the point where it rivals — and could soon overtake — the efficiency of conventional photovoltaic cells. The perovskite structure still...
Bio-Inspired System Enhances Camera Color Accuracy
MELBOURNE, Australia, Aug. 21, 2017 — Research into the way honeybees see color could provide insight into how to improve color accuracy in cameras used in outdoor environments. “For a digital system like a camera or a robot the color of objects often changes. Currently this...
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August 2024
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