Articles tagged with Laser Systems
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.
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.
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.
A new camera system uses low-power infrared laser light to gather high-resolution, 3D information about objects from up to a kilometer away. The system resolves depth on the millimeter scale over long distances, making it suitable for imaging man-made targets such as moving vehicles.
A team of physicists has proposed a new laser system inspired by telecommunications technology to accelerate particles in particle accelerators like the Large Hadron Collider. The system aims to reduce size and cost, making it critical for future high-energy physics.
Developed for DTRA, EMAPS creates annotated physical maps of areas without GPS coverage, capturing 360-degree photos and sensor readings using lasers and sensors. The system improves upon algorithms for robots and includes human movement allowance, detecting environmental threats and associating critical data with map locations.
A recent NIST test found that nearly 90% of green laser pointers and about 44% of red pointers tested were out of compliance with federal safety regulations. The tests also showed that many commercial laser pointers emit more visible power than allowed under the Code of Federal Regulations.
The Lunar Laser Communication Demonstration (LLCD) mission will demonstrate laser communications from lunar orbit to Earth at six times the rate of modern-day radio systems. The system uses a highly reliable infrared laser and sophisticated pointing technology to accurately target ground stations across distances of up to 238,900 miles.
Engineers at AT&T Labs have devised a new technique to enable 400 Gb/s signals to be transmitted over ultra-long distances using current-generation systems. The team successfully transmitted 400 Gb/s signals over a record-breaking 12,000 km distance.
A breakthrough in nanolaser technology has enabled the creation of room-temperature, electrically powered devices. This achievement paves the way for their use in various practical applications, such as improving electronic and photonic technologies.
Researchers at INRS Énergie Matériaux Télécommunications have developed a non-reciprocal electromagnetic isolator critical to THz source applications. The device enables the development of terahertz lasers and amplifiers, crucial for imaging, communications, and spectroscopy technologies.
Gemini Observatory's new GeMS system uses Multi-Conjugate Adaptive Optics to remove atmospheric distortions, increasing field-of-view and image uniformity. This technology enables astronomers to study the universe with unparalleled sharpness, making it a key innovation for future large telescopes.
Researchers have developed a new technology that uses laser and electric fields to create mini-centrifuge-like whirlpools to isolate microorganisms based on size. This technology has the potential to revolutionize lab-on-a-chip applications, including medical diagnostics and pharmaceutical manufacturing.
A new diffraction spectrometer uses a webcam and diffraction grating to achieve sub-picometer accuracy in laser tuning. The instrument is simple enough for undergraduate physics labs, providing training in optics and the wave nature of light.
Susan Celniker, a leading expert in genomic analysis of Drosophila, and Wim Leemans, a world leader in laser plasma acceleration, have been named AAAS Fellows for their outstanding contributions to science. They were recognized by their peers for their pioneering work in genomics, genetics, and laser-plasma particle beam research.
A robotic laser system developed by Carnegie Mellon University and CTC uses high-powered lasers to remove coatings from fighter and cargo aircraft. The system promises to reduce labor, waste volume, environmental risk, and overall cost, making it an environmentally superior alternative to traditional methods.
A prototype sensor array worn on the chest automatically creates a digital map of the wearer's environment, recognizing movement between floors. The system is envisioned as a tool to help emergency responders coordinate disaster response by providing accurate location estimates and visual features of the surroundings.
Researchers develop new silicon resonator for ultra-stable laser, enabling narrower optical absorption lines and better optical atomic clocks. The stability of the laser is critical for these applications.
A new laser-based system can propel tiny, precise streams of medicine into the skin with minimal force, potentially eliminating pain from injections. The device uses an erbium-doped yttrium aluminum garnet laser to create a vapor bubble that forces drug-laden jets into the targeted depth of the skin.
Kansas State University professor Matthias Kling has received a $750,000 award to study electron dynamics in nanostructures with strong laser fields. His research could lead to speeding up electrons by a factor of 100,000, improving communication technology.
Researchers at Vienna University of Technology and other institutions discovered that coupling two micro-lasers can lead to a total shutdown of light emission, defying the expectation that more energy would increase brightness
Researchers develop a small, flexible endoscopic device with a femtosecond laser 'scalpel' that removes diseased tissue while leaving healthy cells untouched. The device boosts imaging resolution by 20% and is five times smaller than the team's first prototype.
The new laser design relies on a million rubidium atoms doing synchronized line dances to produce dim but brighter laser light. The superradiant laser's stability is less sensitive to mirror motion, making it potentially 1,000-fold more stable than conventional lasers.
Researchers at the University of Toronto have created a new neural imaging system that allows for more complex maps of brain functions with just one camera and imaging system. This technology uses vertical cavity surface emitting lasers to classify veins and arteries simultaneously.
Researchers at MIT Media Lab have developed a new imaging system that can produce recognizable 3-D images of objects outside its line of sight by using femtosecond laser pulses and analyzing reflected light. The system has potential applications in emergency response, vehicle navigation, and medical devices.
A new laser technology has been developed by Michigan State University researchers to detect roadside bombs with high sensitivity and selectivity. The laser can canvas large areas and distinguish between explosives and similar compounds, making it a potential game-changer for detecting improvised explosive devices.
Researchers have made significant breakthroughs in femtosecond laser writing, enabling the creation of new optical materials and devices. Key findings include the importance of temperature in material structuring and the potential for precise control of induced birefringence.
Research suggests that physics principles may be used to create complex crop-circle patterns, with some teams reproducing damage using handheld magnetrons and microwaves. Crop-circle artists are believed to use invisible construction lines to design their work, dispelling the need for traditional tools.
German researchers have successfully used electroencephalography (EEG) to detect drivers' intentions to brake, reducing reaction time by 130 milliseconds. The system uses EEG and myoelectric activity to detect emergency situations before they occur, potentially saving thousands of car accidents caused by human error.
Researchers at the University of Washington are developing a semi-automated scan using ultrathin laser endoscope and software to create a full, 3-D panorama of the bladder interior. This technology has the potential to bring endoscopy into a more digital age.
Scientists from North Carolina State University have created a device that enables precise steering of laser beams without moving anything. The technology uses polarization gratings to redirect light and has various potential applications, including free space communication and LIDAR.
Researchers have developed a new laser system that can ignite engine air-fuel mixtures more efficiently than traditional spark plugs. The laser system is made from ceramics and promises less pollution and greater fuel economy, but further testing is needed to make it commercially viable.
Engineers at Oregon State University have invented a new method to produce low-temperature microchannel heat exchangers using surface-mount adhesives. This technology could make it possible to manufacture these devices less expensive and open up new opportunities for next-generation computers, lasers, and other applications.
Researchers have developed a new battery structure that allows for faster charging and discharging without sacrificing energy storage capacity. This innovation could enable phones to charge in seconds and laptops to charge in minutes, while also improving performance in electric vehicles and medical devices.
Researchers at UC Berkeley have developed a new technique that allows plasmon lasers to operate at room temperature. This achievement is a major step towards applications for plasmon lasers in single-molecule biodetectors, photonic circuits, and high-speed optical communication systems. The scientists were able to enhance the emission ...