Articles tagged with Laser Systems
Researchers at NIST developed a novel power meter called 'Smart Mirror' that measures laser power in real-time using radiation pressure. The device is compact, sensitive, and fast, enabling continuous measurement during welding and calibration processes.
Researchers embedded graphene in a photonic crystal to enhance its light-absorbing capabilities. By varying the external temperature, they can tune the material's optical characteristics, leading to potential applications in light sensors and ultra-fast lasers.
Researchers develop powerful femtosecond light source for mid-infrared spectroscopy, enabling detection of organic molecules at low concentrations. The system uses coherent light to reveal molecular fingerprints and diagnose diseases like cancer at early stages.
Researchers used spectroscopic measurements to confirm S0-2 has no significant companion, simplifying the upcoming gravity test. The discovery sheds light on the formation of young stars near the supermassive black hole at the center of the Milky Way galaxy.
Engineers have created a laser-based wireless charging system that can safely charge smartphones sitting across a room. The system uses power from the laser to charge the smartphone via a thin power cell mounted on the back of the phone, with safety features such as a heatsink and guard beams to prevent overheating and accidental contact.
The Kodiak system has been officially baselined for NASA's Restore-L project, demonstrating an autonomous satellite-servicing capability. The system will provide real-time images and distance-ranging information to extend a satellite's lifespan.
Proton acceleration is hindered by magnetism, as electrons create a sheath field that accelerates protons at right-angles to the target. This effect, known as magnetic inhibition, progressively worsens at higher laser powers, reducing proton energies.
A new technique allows researchers to switch emission between long- and short-wavelength edges of photonic bandgap by applying a voltage of 20 V. This is achieved through modifying the dipole moment of cholesteric liquid crystals.
Researchers at Ural Federal University and Institute of Chemistry of Solids created a new compound that converts UV radiation into visible light. The compound has potential uses in medical and optical devices, as well as air pollution analysis.
The W.M. Keck Observatory has received an NSF grant to upgrade its adaptive optics system, further advancing research on habitable exoplanets and supermassive black holes. The new system will deliver faster, more flexible real-time controller and better camera technology, improving image clarity.
Researchers have developed a method to detect hydrohalite, a substance that forms on treated icy roads and cannot be removed by conventional salting. Using Raman instruments fitted with lasers, trucks can identify the presence of hydrohalite and switch to alternative de-icers, making roads safer for users.
Researchers demonstrate fast and scalable holonomic quantum computation using Nitrogen-vacancy center electron spins in diamond, enabling high-fidelity operations with all-optical control. This work represents the first such achievement in solid-state quantum systems.
Researchers from the Naval Research Laboratory have created a new LiDAR system that can survey obscured ground using gated digital holography methods. This technology allows for 3D topography surveys through foliage or other obstacles, with potential applications in disaster relief and self-driving cars.
Researchers from Osaka University developed an optical system for full-field X-ray microscopes that eliminates chromatic aberrations, allowing for the resolution of 50-nm features with high stability. The system, featuring two monolithic imaging mirrors, has been applied in spectromicroscopy experiments and shows promise for various ap...
Researchers at Bilkent University have designed the simplest experimental system to date, revealing that particles can form autocatalytic aggregates with rich complex behaviors. The study employs only two parameters: laser power and beam position, allowing for controlled emergence of complexity.
Researchers from Hebrew University of Jerusalem develop novel system combining lasers and bacteria to remotely map location of buried landmines. The system detects explosive vapors emitted by mines, which are then recorded and quantified from a remote location.
The LEMNOS system will provide speeds of at least 80 megabytes per second, far surpassing current systems that send 51 kilobytes of data per second. This enables high-definition video transmission and real-time scientific data exchange.
Researchers at Oxford University have developed a system to transmit quantum keys, ensuring data security and detecting eavesdropping. The prototype uses movable mirrors and ultrafast LEDs to send secret pin-codes over short distances, improving the security of contactless transactions.
NASA's Laser Communications Relay Demonstration (LCRD) aims to establish a high-speed internet in space, enabling faster data rates and smaller communication systems. The technology has the potential to revolutionize space communications for missions to the moon, Mars, and beyond.
Two groups of researchers successfully created time crystals using theories developed at Princeton University, discovering the essential physics of their function. The creation builds on previous developments that challenged conventional understanding of complex systems in equilibrium.
Scientists have developed a new technology that uses laser-generated bubbles to create 3D images in a liquid screen, allowing viewers to see the display from all angles. The bubbles are created using femtosecond laser pulses and can be colored by changing the illumination light.
Researchers propose eliminating most wires in data centers by using infrared free-space optics to transmit information. This technology enables fast data transfer rates with minimal interference and can accommodate thousands of servers on a single rack.
A team from the Hebrew University of Jerusalem has developed an on-chip sensor capable of detecting unprecedentedly small frequency changes, achieving record-high sensing precision with a small footprint that can be integrated with standard CMOS technology.
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 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.