Articles tagged with Laser Systems
A new crystal structure of organic-inorganic hybrid materials has been discovered, offering promise for the development of optoelectronic devices such as light-emitting diodes and lasers. The material displays interesting optical properties, including high photo luminescence, making it a potential candidate for efficient light emission.
Physicists at NIST have combined two experimental atomic clocks based on ytterbium atoms to set a new world record for clock stability. The dual-clock design eliminates dead time and noise, resulting in a more powerful tool for precision tests and applications.
Scientists at Berkeley Lab created a single device that can act as both a laser and an anti-laser, enabling flexible operation in optical communication. The device uses parity-time symmetry to balance amplification and absorption, allowing for control over light behavior.
Photonics may provide solutions to NASA's pressing challenges in future spaceflight, including improved space communications and reducing mission payloads. Laser communications have the potential to increase data rates at least 10 to 100 times better than RF systems.
Operation IceBridge is studying the effect of summer melt on Greenland's largest and fastest-melting glacier, Helheim Glacier. The team is observing changes in ice elevation between spring and late summer to understand the cumulative response to melting.
Researchers at MIT and Sandia National Laboratories describe a new way to build terahertz lasers that reduce power consumption and enable tighter beams. The device is an array of microfabricated lasers on a single chip, with phase-locking technology that recaptures lateral radiation, resulting in a tighter beam.
Two new RGB laser light source modules developed by Osaka University and Shimadzu Corporation show superior performance in miniaturization, energy-saving, and color gamut compared to LEDs. The modules have potential applications in small electronic devices, large video systems, and projection mapping.
Scientists have developed a new imaging system that can produce three-dimensional images of the insides of arteries, revealing fatty arteries in all their detail. This breakthrough technology has the potential to help doctors diagnose plaque vulnerability in patients and better identify heart disease.
Despite concerns, leading eye specialists find no evidence to suggest lasers pointed at airplane cockpits damage pilots' eyesight. However, the dazzle and distraction from such incidents could prove disastrous during critical moments like landing.
Researchers have found a way to control heart muscle cells using laser radiation, which could lead to new treatments for arrhythmia. The study used azoTAB molecules and found that controlling the ion channels in cardiomyocytes can reduce abnormal heart rhythms.
The new laser-based tracking system HYPERION enables aircraft and UAVs to transmit vital data securely and efficiently. With its optimised range of 1km and potential to extend this, HYPERION could aid disaster relief efforts by allowing for real-time access to mission data.
Researchers have demonstrated a unique optical trapping system that can efficiently couple high-power laser light into hollow-core fibers. The system uses a self-aligning method to trap tiny tapered glass fiber inside the hollow core, with potential applications in laser cutting and basic physics research.
Rice researchers develop an open-source laser sintering platform that can print intricate 3D objects from powdered plastics and biomaterials. The system costs significantly less than commercial counterparts and allows researchers to work with their own specialized materials.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf are exploring the use of high-powered lasers to accelerate ions for cancer treatment. By accelerating ions to therapeutic energies in a short time, they can deposit most of their energy inside tumors while leaving healthy tissue unharmed.
Researchers from Penn State have developed a model that uses fractal geometry to describe the layering in silvery fish skin, which can guide the design of devices such as broadband mirrors. The technique has potential applications in advanced optical coatings, laser protection, infrared imaging systems, and photovoltaics.
A new study published in PLOS ONE reveals that vessel speed is the most influential factor in how much noise from boats reaches endangered killer whales. The research used digital acoustic recording tags and laser positioning system to track boat noise levels and found that speed was the main contributor.
The University of Washington team has made history by cooling water by about 36 degrees Fahrenheit using an infrared laser. This breakthrough technology has the potential to revolutionize various industries, including manufacturing, telecommunications, and defense.
A NASA-developed laser communication system has demonstrated record-breaking data download and upload speeds to the moon, as well as highly precise distance and speed measurements. The Space Optical Communication and Navigation System can provide micrometer-level accuracy over a 622 megabits-per-second laser communication link.
The MIT Deshpande Center has awarded grants to 15 research teams working on emerging technologies with potential impact in disease monitoring, cancer treatment, and more. The center provides support and guidance to innovators as they develop viable technologies.
Physicists at MIT have found a phenomenon described as a 'ring of exceptional points' produced by the Dirac cone, potentially leading to applications in powerful lasers and precise optical sensors. The discovery represents the first experimental demonstration of this phenomenon.
Australian scientists are part of the Advanced LIGO project aiming to find gravitational waves, ripples in space-time caused by violent cosmic events. The technology requires high sensitivity and precision, pushing the limits of components like low-noise detectors and high-power lasers.
Physicists at Ludwig-Maximilians-Universität München have developed a new Ytterbium:Yttrium-Aluminium-Garnet (Yb:YAG) disk laser, which produces pulses lasting 7.7 femtoseconds and enables the study of ultrafast physical processes on attosecond timescales.
Scientists have developed a new high-speed camera, STAMP, that can record events at over 1-trillion-frames-per-second, capturing complex physical and biological processes. The camera operates by splitting a single light pulse into multiple colors, allowing for the creation of moving pictures of ultrafast phenomena.
Weidong Zhou, a UT Arlington electrical engineering professor, has received a $600,000 grant to develop low-cost, compact ultraviolet lasers for detecting chemical and biological agents. The goal is to create more efficient lasers that can be used in portable detection systems, reducing size, weight, and power consumption.
A new space-based system combines a super-wide field-of-view telescope with a high-efficiency laser to track and deorbit centimeter-sized space debris. The system, proposed by RIKEN scientists, could remove most of the debris within five years of operation.
The Advanced Laser Light Source at INRS has received significant funding to advance its mission as an international center of excellence in ultrafast science. With this new investment, the facility will continue to explore fundamental questions in physics and chemistry through high-quality light sources.
INRS has received significant funding to develop new fibre laser systems, electrocatalysts for CO2 reduction, and terahertz technologies. These collaborations aim to enhance broadband communication and energy efficiency, while addressing greenhouse gas conversion and chemical detection needs.
Researchers at the University of Bristol have developed a new acousto-optic device that can shape and steer light beams at speeds never before achieved. The device, which consists of 64 tiny piezo-electric elements, can create complex sound fields that deflect and sculpt light passing through it.
A breakthrough in flexible electronics has been achieved using Inorganic-based Laser Lift-off (ILLO), which overcomes material and processing limitations. ILLO allows for the fabrication of ultrathin inorganic electronic devices on flexible substrates, enabling high temperature processes previously restricted by polymer materials.
A recent study using LiDAR technology has uncovered the ancient Roman goldmines in Spain, including channels, reservoirs, and a double river diversion. The findings provide new insights into the labour-intensive extraction process and highlight the importance of geo-archaeology in understanding Roman mining techniques.
Researchers developed an advanced imaging system to identify cells storing memory in a tiny worm, offering a new way to investigate molecular substrates of memory. The study may lead to understanding how memory loss occurs in humans and potentially develop therapies for memory disorders.
Researchers at MIT and Draper Laboratory have developed a new atomic timekeeping approach that could enable more stable and accurate portable atomic clocks. The system suppresses the AC Stark shift effect, allowing for smaller, less expensive devices with improved accuracy compared to current fountain clocks.
A new Northwestern University study analyzed over 20,000 minimally invasive cosmetic procedures and found no risk of serious adverse events. The study suggests that these procedures are exceedingly safe, with fewer than 1% minor complications, offering a significant cosmetic boost through mixed procedures.
A study of over 20,000 noninvasive and minimally invasive cosmetic procedures found a low incidence of adverse events, with most being minor and rapidly remitting. The procedure types most commonly associated with adverse events were those on the cheeks, nasolabial lines, and eyelids.
Princeton engineers found that carefully restricting power delivery to certain areas within a laser can boost its output significantly. By targeting specific modes, they showed improvements in efficiency ranging from 100-fold to 10,000-fold, allowing for more control over frequency and spatial pattern of light emission.
Researchers at Vienna University of Technology and Washington University in St. Louis have confirmed a paradoxical laser effect, where energy loss can turn lasers on. By carefully tuning the amount of light lost through a chromium needle, they were able to switch the laser system on.
Researchers at Washington University in St. Louis have developed a method to reverse optical loss and increase laser intensity by modulating loss in the system. By adding loss to a laser system, they achieved energy gains and demonstrated new nonlinear phenomena.
The new NIST probe uses quantum properties of atoms to measure electric field strength with improved sensitivity and precision. It can calibrate itself and has been demonstrated for imaging applications, with potential applications in electronics and medical devices.
The NIST laser comb system creates high-definition 3D maps of surfaces from up to 10.5 meters away with sub-micrometer accuracy. This method is useful for precision machining, assembly, and forensic applications.
Scientists at the University of Maryland have successfully created air waveguides that can guide light beams over long distances without loss of power. This breakthrough has significant implications for various applications, including long-range laser communications, pollution detection, and topographic mapping.
Researchers at UT Austin have created a nonlinear metasurface that can reflect radiation at twice the input light frequency, producing approximately 1 million times larger frequency-doubled output. The new metamaterial has potential applications in advanced laser systems for chemical sensing and biomedical research.
The International Space Station's third annual research conference recognized three notable technology applications in 2013. The SPHERES-Slosh investigation demonstrated improved spacecraft designs by simulating fluid movement in microgravity, while a laser communication system was tested for high-speed transmission between the space s...
UTHealth researchers have developed a new technology, NIRFLI, that can non-invasively image the human lymphatic system using near-infrared fluorescence and laser diodes. This device promises to revolutionize lymphatic care by allowing for early detection and monitoring of conditions such as lymphedema and cancer.
Researchers developed an external laser device to detect alcohol vapors inside moving cars, reducing accidents caused by drivers under the influence. The device can identify cars with intoxicated drivers or passengers and alert authorities, potentially decreasing traffic checks.
Researchers have developed precision-guided epidurals using optical coherence tomography (OCT) to reduce pain and complications. OCT also enables better blood monitors that measure oxygen saturation and flow rates without contrast agents.
A team of MIT researchers has successfully demonstrated a broadband wireless connection to the moon using a laser-based communication system, transmitting data at a rate of 622 megabits per second. The system, which uses multiple telescopes and amplification techniques to overcome atmospheric challenges, has the potential to enable lar...
Researchers have developed a new method using terahertz reflectometry to measure the thickness of paint layers and analyze particles embedded in them. This technique can help identify old toxic paint containing lead and analyze artifacts without damaging them.
Researchers have developed a technological system to measure wind turbine oscillations from a distance of several hundred meters. The system uses a laser that automatically tracks the motion of rotor blades, collecting data on precise positions and building a model of rotary motion.
INRS received seven NSERC Strategic Project Grants, totaling $3.5 million, to tackle scientific and technological challenges in ITC, materials, and environmental sciences. The funding supports projects such as developing new broadband RF signal processing and infrared subcyclic impulse lasers.
Clemson professor Roger Stolen was selected to present at a special session titled "Pioneers of Fiber Optics" at SPIE Photonics WEST 2014. He is being honored for his pioneering work in nonlinear fiber optics, which has played an important role in modern high-capacity optical communication systems.
The Laser Communications Relay Demonstration (LCRD) mission aims to demonstrate reliable optical services. It will conduct a two-year demonstration of optical relay services to collect long-term performance data and provide necessary knowledge for future mission-critical systems.
Researchers at Caltech developed a miniature chip-based resonator that stabilizes electrical currents and optical signals, paving the way for improvements in communications, navigation, and remote sensing. The new technology uses an Archimedean spiral to minimize energy surges and improve frequency stability.
Australian researchers have developed a breakthrough 3D mapping system, Zebedee, which enables the creation of detailed maps of complex sites like the Leaning Tower of Pisa. The technology has been used to produce the first comprehensive 3D map of the tower's interior, capturing small details in the stairs and stonework.
Physicists at NIST create high-Q resonators in a minute, significantly reducing production time. The technique enables the mass production of compact frequency combs for various applications.
Researchers at CERN have successfully measured the ionization potential of astatine, a radioactive element with limited knowledge. The study used a novel laser-based technique to determine its binding energy, shedding light on its chemical behavior and potential applications in cancer therapy.
Researchers at Purdue University have developed a new super-resolution optical microscopy technique that can image synthetic nanostructures and molecules without the need for fluorescent dyes. The technique, called saturated transient absorption microscopy (STAM), uses a trio of laser beams to selectively illuminate molecules, allowing...
The need for reliable, high-voltage shipboard power has become a matter of national security following the announcement of laser weapons on U.S. Navy ships. Researchers are developing cutting-edge technologies like silicon carbide-based transistors and transformers to improve power quality and reduce size and weight.
Researchers used PIV system to measure flow field around Heteroxenia coral, finding polyp motion effectively sweeps water away from coral tissues. The accumulated effect of uncoordinated polyp activity enhances flow around colony, reducing re-filtration and improving nutrient exchange.
Australian researchers use CSIRO's Zebedee to create detailed 3D maps of historic sites in Moreton Bay, preserving fragile and remote cultural heritage. The technology allows for rapid data collection, enabling analysis of important aspects of Australian history, such as the segregation of Indigenous people in leper colonies.
A new MRI-guided laser treatment has been found to be safe and effective in treating recurrent glioblastoma, a type of brain tumor. The procedure uses a minimally invasive approach to destroy tumors, with nine out of ten patients showing improved response and survival rates.