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Research & Technology News
Spinal Neuron Connections Probed with Fluorescence Microscopy
LA JOLLA, Calif., Sept. 9, 2015 — Using two-photon fluorescence microscopy, researchers have gained new insight into how the spinal cord mediates commands from the brain to get the body moving. The findings could help identify ways to repair damaged neural connections in patients with spinal cord injuries or neurodegenerative diseases like amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. Researchers at the Salk Institute for Biological Studies used a fluorescent tag that could be added to
Color-Changing Substance Detects Biological, Mechanical Problems
CAMBRIDGE, Mass., Sept. 9, 2015 — Responsive to a range of stimuli, a color-changing metallic substance could help detect problems as varied as mechanical strain and pollution. The material can be engineered to emit specific colors — even pure white — under different...
Ireland Launches Photonics Initiative
CORK, Ireland, Sept. 8, 2015 — The Irish government has announced a new national technology initiative to mobilize the country's photonics industry and grow its economy. Called Photonics Ireland, the platform will deliver a suite of research and innovation actions for greater...
Light Moves Mirror for 3D Sensing
BERKELEY, Calif., Sept. 3, 2015 — Using a mirror moved by the force of light, a new laser system could enable the miniaturization of 3D sensors for driverless cars and bioimaging. The mirror, an ultrathin high-contrast grating, alters the frequency of the laser beam as it moves,...
Feedback Provides Better Optogenetics Control
ATLANTA, Sept. 1, 2015 — Feedback control could give optogenetics the specificity it needs to fight neurological disorders like epilepsy, chronic pain and depression. Neural stimulation systems based on electrical inputs already use feedback to control to fine-tune their...
Individual Photons Squeezed by QDs
CAMBRIDGE, England, Aug. 31, 2015 — Quantum dots can provide the control necessary to "squeeze" individual photons — a feat previously considered impossible to observe. Squeezing is quantum phenomenon that produces an extremely low-noise signal potentially useful in technology...
Laser Diode Micro-Optics Enhance Cutting
DORTMUND, Germany, Aug. 31, 2015 — Although a high-powered diode laser operates at a relatively modest brilliance, with optimized micro-optics it is well suited for the rapid and precise cutting of 6-mm-thick stainless steel. That's the conclusion of Brilamet, a research project...
Pemamek System to Be Used in Laser-Arc Welding Study
KUOPIO, Finland, Aug. 27, 2015 — Savonia University of Applied Sciences will use a hybrid welding station from Pemamek Oy Ltd. to study how laser, arc and hybrid welding methods affect seams in cold-temperature machinery Seam qualities will be studied from R&D and production...
Imaging to the Rescue in Fight Against Invasive Bugs
GREENBELT, Md., Aug. 27, 2015 — Ravenous insects smaller than a penny continue to migrate from the Southeast, threatening to destroy millions of pine and ash trees in the Northeast. Now NASA has teamed with the U.S. Forest Service to combat the problem using an array of optical...
Modified SIM Makes Movies of Cell Processes
ASHBURN, Va., Aug. 27, 2015 — Variations on structured illumination microscopy (SIM) provide a way to watch dynamic biological processes inside living cells with unprecedented clarity. "These methods set a new standard for how far you can push the speed and noninvasiveness of...
Stem Cell Differentiation Triggered with Light
SAN FRANCISCO, Aug. 26, 2015 — Blue light can trigger the transformation of embryonic stem cells into neurons. Based on optogenetics techniques, the discovery could be a first step toward complex tissue engineering using light, according to researchers at the University of...
Montana Invests in Optics for Agriculture
BOZEMAN, Mont., Aug. 25, 2015 — Recently announced state funding aims to kick hyperspectral imaging into hyperdrive. Montana State University researchers aim to develop new technology for Resonon Inc., a manufacturer of machine vision and other imaging systems used in automated...
Ultrafast Fiber Laser Boasts Simple Design
WARSAW, Poland, Aug. 24, 2015 — Heat and vibration are no problem for an ultrafast laser with a cavity made entirely of polarization-maintaining optical fibers The design emits 220-fs pulses with energies up to 3.5 nJ. Its 1030-nm output wavelength can be multiplied by generating...
Common Materials Could Simplify White LED Manufacturing
PISCATAWAY, N.J., Aug. 19, 2015 — Computational models identify combinations of materials that could help reduce the costs of manufacturing white LEDs. Experiments by Rutgers University researchers suggest materials and processes for phosphor-converted white LEDs (PC-WLEDs) that...
Laser Technique Cools Broader Range of Elements
SOUTHAMPTON, England, Aug. 18, 2015 — A versatile laser cooling technique proposed 15 years ago now has partial experimental verification. In principle the technique could be used to cool a broader range of elements than is possible with current methods. Researchers at the University of...
Implantable Optogenetics Device Powered Wirelessly
STANFORD, Calif., Aug. 17, 2015 — Combining optogenetics and wireless energy transfer technology, a new device is said to be the first fully implantable platform for optical neural stimulation. The device dramatically expands the scope of optogenetics research to include experiments...
Method Lends 'True Color' to Superresolution Microscopy
BERKELEY, Calif., Aug. 17, 2015 — Building on earlier superresolutions methods, a new microscopy technique provides nanoscale spatial information on individual molecules while also revealing their spectra. SR-STORM, or spectrally resolved stochastic optical reconstruction...
Solid Tunable Lens Aims for Gentler Colonoscopies
SINGAPORE, Aug. 14, 2015 — An endoscopic probe with adjustable-focus capabilities in a slim package could facilitate more effective and less painful colonoscopies. Researchers at the National University of Singapore (NUS) developed the instrument using prototypical solid...
Chip Simplifies Quantum Optics Experiments
BRISTOL, England, Aug. 14, 2015 — JFL Chip Simplifies Quantum Optics Experiments BRISTOL, England, Aug. 14, 2015 — A chip that can process photons in an infinite number of ways could speed up development of quantum computing. Researchers say the device is a step quantum...
David Williams Wins $500K to Advance Adaptive Optics, Human Vision Research
NEWPORT BEACH, Calif., Aug. 14, 2015 — A pioneer in the use of adaptive optics to improve human sight, University of Rochester professor David Williams has received the 2015 Beckman-Argyros Award in Vision Research. The award is given annually by the Arnold and Mebel Beckman Foundation...
Microresonators Generate Combs for Communications, Spectroscopy
WEST LAFAYETTE, Ind., Aug. 12, 2015 — Single microresonators able to generate light pulses at several discrete frequencies could eliminate the need to integrate multiple lasers into communications and spectroscopy equipment. Researchers at Purdue University have developed a way use...
Theoretical Materials 'Invisible' to Light Waves
VIENNA, Aug. 11, 2015 — Materials that allow light to pass through without distortion are possible, according to a new set of calculations by an international team of researchers. When a light wave travels through free space, its intensity can be the same everywhere. But...
Photonic Crystal Boosts QD Light Output
CHAMPAIGN, Ill., Aug. 10, 2015 — Combining quantum dot (QD) and photonic crystal technology could lead to brighter and more efficient displays and lighting. Researchers from the University of Illinois have developed a new method that extracts polarized light from QDs over a large...
LED-Based Heating, Cooling Method Leads to Faster DNA Diagnostics
BERKELEY, Calif., Aug. 6, 2015 — Developed by bioengineers at the University of California, Berkeley (UC Berkeley), an advanced thermal cycling system is expected to expand clinical and research applications associated polymerase chain reaction (PCR) tests. The technology has shown...
Chip-Scale Laser Produces White Light
TEMPE, Ariz., July 31, 2015 — Able to produce white light, a chip-scale semiconductor laser brings the technology one step closer to becoming a mainstream light source and potential alternative to LEDs. Brighter and more energy efficient than LEDs, the new laser design could be...
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