Articles tagged with Laser Systems
A team of researchers demonstrated that popular robotic household vacuum cleaners can be remotely hacked to record speech and music. They used signal processing and deep learning techniques to recover sound waves from the laser-based navigation system, revealing potential security risks and privacy breaches.
Researchers at IBS Center for Soft and Living Matter use laser to study cage formation in colloidal glasses, finding non-monotonic length scale peaking at onset temperature. The findings reveal complex dynamics underlying glass transition, with implications for understanding other glassy systems.
Researchers created a new type of ceramic nanocomposite (Ho3+:Y2O3-MgO) that can be used in high-capacity lasers operating in the medium infrared range. The material has increased thermal and mechanical resistance due to its almost pore-free structure, allowing it to transmit over 75% of light in the medium IR wavelengths.
Researchers have optimized Vertical Cavity Surface Emitting Lasers (VCSELs) to achieve lower energy consumption while maintaining high data transmission rates. The study demonstrates that doubling the number of devices can reduce total energy consumption by 50% without compromising device lifetime or reducing current density.
Researchers at NIST have developed a system that can reliably detect even the faintest signal pulses using quantum physics, enabling record-low error rates and reducing energy requirements. The system uses novel receiver technology to process extremely weak signals with up to 16 distinct laser pulses encoding four bits of data.
A new type of accelerator structure could make particle accelerators 10 times smaller, increasing their power density. The technology uses terahertz radiation to boost particle energies, allowing for shorter accelerator lengths.
Scientists have developed an all-optical imaging system that captures ultrafast dynamic processes at a record-breaking frame rate of 15 trillion frames per second. The method uses non-collinear optical parametric amplifiers, allowing for high spatial and temporal resolutions, and has the potential to become a new microscopy technique.
A new spectrometer uses dual-comb spectroscopy to measure spectra in mere microseconds, enabling real-time biological imaging and machine vision applications. The device can analyze gases and solids at high speeds, making it ideal for applications like explosion analysis and chemical signatures capture.
A team of scientists has developed a novel 2D MFOR-PAM system utilizing a 2D microlens array and an acoustic ergodic relay to detect PA signals in parallel. This system can shorten scanning time by at least 400 times compared to conventional OR-PAM systems, while maintaining a simple and economic setup.
Physicists at MIT have designed a quantum light squeezer that reduces quantum noise in lasers by 15% at room temperature. The system uses an optical cavity with two mirrors to engineer the light exiting the cavity, allowing for more precise measurements in quantum computing and gravitational-wave detection.
An international team of researchers has demonstrated a technique to increase the intensity of lasers by compressing light pulses. This approach could enable the exploration of quantum electrodynamics phenomena at previously inaccessible intensities.
A deep-learning powered single-strained electronic skin sensor captures complex five-finger motions in real-time, creating a virtual 3D hand. The sensor's rapid situation learning system ensures stable operation regardless of its position on the skin.
A new laser-based system provides 3D models of diaphanous marine animals and their mucus structures, allowing researchers to understand how they function and what roles they play in the ocean. The study focused on larvaceans, which create complex mucus filters that remove vast amounts of carbon-rich food from the surrounding water.
A group of researchers developed a new way for robots to pool data in real-time, allowing them to navigate difficult terrain as a team. The system uses a centralized data cloud, where each robot draws on data from other robots to steer clear of obstacles.
Researchers have created a new tool for quantum technologies by coupling atoms with nanomechanical membranes using laser light. The technique enables strong interactions between quantum systems over longer distances, opening up possibilities for quantum networks and simulations.
Researchers at MIT have successfully cooled sodium lithium molecules down to 200 billionths of a Kelvin using collisional cooling, enabling the potential for molecule-based quantum computing. The technique involved making the molecules and atoms spin in sync, avoiding 'bad' collisions that heated or destroyed the molecules.
Scientists propose a new design that replaces traditional high-n materials with tunable nanolaminate layers to achieve improved performance parameters. The new coating enables larger bandwidth, higher LIDT, and smaller transmission ripples compared to traditional designs.
Researchers at the University of Tyumen developed biomimetic optics that mimic human eye functions, offering excellent adaptation to changing conditions and miniature sizes. The new optics has advantages over traditional technologies, enabling wider range of functional characteristics.
Researchers have successfully created optical supramolecules using tightly bound optical solitons in lasers, mimicking natural molecular systems. This breakthrough enables the storage and manipulation of encoded information within these complex arrays.
Researchers developed a system to accurately detect space debris in Earth's orbit using laser ranging telescopes and neural networks. The new algorithm significantly improves the success rate of space debris detection, allowing for safer spacecraft maneuvers.
Researchers worldwide can access cutting-edge tools and expertise at the Sandia Low Temperature Plasma Research Facility, enabling proof-of-principle studies on a wide range of plasma behaviors. The 5-year project, funded by DOE's Office of Science, fosters collaboration between Sandia and other institutions.
Researchers develop a new industrial laser system to study cold atom dynamics in space. By doubling the frequencies of widely used telecommunications lasers, their design enables accurate measurements of subtle variations in the Earth's gravitational field.
Researchers at ETH Zurich have demonstrated a sub-picosecond thin-disk laser oscillator achieving an average output power of 350 W, surpassing the previous record. The breakthrough enables efficient cooling and heating control, paving the way for even more powerful lasers with potential kilowatt-level output.
The new CHIMERA printer produces digital 3D holograms with unprecedented detail and realistic color, created using low-cost commercial lasers and high-speed printing. The printer can produce wide-field-of-view holograms with full parallax, ideal for applications such as museum displays and architectural models.
Researchers at the University of Seville have developed a procedure for producing boron carbide phase B6C, an ultra-resistant material with a hardness of 52 GPa and Young modulus of 600 GPa. The material is resistant to radioactivity and surpasses diamond in hardness.
Skoltech scientists have developed a method to control the nonlinear optical response of carbon nanotubes using electrochemical gating. This approach enables designing devices that can control the duration of laser pulses, opening up new possibilities for universal laser systems with controllable pulse duration.
Researchers developed a new laser-based system that uses speckle pattern analysis to detect fires in harsh environments. The system achieved an accuracy of 91 percent in tests at a waste plant in Denmark, offering a promising solution for fire detection in industrial settings.
Researchers have developed a laser prototype that nearly meets the stringent requirements for the Laser Interferometer Space Antenna (LISA) mission. The laser system features a seed laser, YDFA amplifiers, and an optical reference cavity to improve spectral purity and stability.
Researchers have created a new material using tellurium nanorods produced by naturally occurring bacteria, which can protect electronic devices against high-intensity bursts of light. The material has the potential to revolutionize high-speed optical networking and improve internet communications.
Researchers at Princeton University have developed a compact, high-speed terahertz imaging system using direct emission of terahertz radiation from semiconductor chips. The device can quickly probe the identity and arrangement of molecules or expose structural damage to materials.
The researchers developed a universal beam shaping technique that spatially separates residual and extracted components in the Fourier plane using a virtual diagonal phase grating. This allows for highly uniform flattop beams with improved resolution and accuracy, suppressing edge ripples to 20 μm.
Biotechnologists and medical researchers at FAU have developed a miniaturized multi-photon microscope that can be used in endoscopes, illuminating the body's own molecules to enhance imaging. This technology offers high-resolution three-dimensional images of living tissue, supplementing or even making biopsies superfluous.
Researchers at Osaka University have developed a glue-free bimorph deformable mirror that can be used in vacuum chambers. The new technology uses inorganic silver nanoparticles to bond PZT actuators to a mirror substrate, allowing for precise shape modification and high-precision optics.
A team of University of Central Florida researchers has developed the first supersymmetric laser array, which overcomes a long-standing problem in laser science. The findings have promising applications in various fields, including medicine, military, industry and communications.
Scientists at KIT integrate a microfluidic chamber into a 3D laser lithography device to produce multi-colored, fluorescent security features from seven different materials. The system enables precise production of three-dimensional microstructured security features for applications such as banknote and document counterfeiting.
Researchers at UC Santa Barbara have successfully created a chip-scale laser that emits light with a fundamental linewidth of less than 1 Hz, quiet enough to move demanding scientific applications to the chip scale. This breakthrough uses stimulated Brillouin scattering to produce extremely quiet light and has significant implications ...
Researchers at MIT and Sandia National Laboratories have developed a new laser-based system that can monitor radiation-induced changes continuously, providing more useful data much faster than traditional methods. This allows for detailed studies of the performance of materials in just hours, instead of months.
Researchers from INRS and University of Sussex create an AI-optimized photonic chip to customize the properties of broadband light sources, also known as supercontinuum. This innovation enables new imaging technologies and fundamental research into light-matter interactions.
A NASA team is experimenting with ultrafast lasers to weld dissimilar materials, including exotic glasses and metals. The goal is to develop new manufacturing techniques that could benefit spaceflight instruments.
The University of Texas at Austin will be a key player in LaserNetUS, a new national network of institutions operating high-intensity lasers. UT Austin's Texas Petawatt Laser will collaborate with leading optical and plasma physics scientists from around the US to advance research.
Researchers at Case Western Reserve University have developed a 'transistor' laser that can be manipulated at the nanoscale using an external voltage. This technology could lead to more accurate medical procedures and re-routing of fiber optic communication lines.
Michael Krainak, leader of NASA's Laser and Electro-Optics Branch, is recognized for his innovative approach to applying emerging technologies to agency-priority spaceflight needs. His work on optical communications, photonic integrated chips, and laser-based technologies has significant potential for breakthrough capabilities.
Researchers have detected extremely high-energy gamma rays from the microquasar SS 433, which is located 18,000 light years from Earth. This discovery sheds light on astrophysical processes and may offer insights into star systems in distant galaxies.
The W. M. Keck Observatory has received a NSF grant to develop the Keck All-Sky Precision Adaptive Optics (KAPA) system, which will deliver sharper images of the universe over nearly 100% of the night sky. KAPA aims to investigate modern astronomy's greatest mysteries, including dark matter and cosmology.
ICESat-2 successfully fired its laser for the first time, sending photons to measure Antarctic height and detecting small changes in planet's ice sheets, glaciers, and sea ice. The mission will continue with procedures to optimize the instrument, aiming to start getting excellent science-quality data within a month after launch.
Researchers at ITMO University have developed a high-precision laser for measuring the distance between the Earth and Moon, achieving an accuracy of just a few millimeters. The new laser will be used in the GLONASS navigation system, allowing for real-time correction of satellite coordinates and improved navigation capabilities.
The Gemini Observatory will receive a $4 million NSF award to enhance its capabilities in multi-messenger astronomy, including the development of an advanced multi-conjugate adaptive optics system. This will enable the detection of transient phenomena and improve our understanding of the universe.
The optical society laser engineers have successfully designed and tested a high-resolution laser system for the GEDI mission, which will study Earth's forests and topography from the International Space Station. The laser systems must withstand heat and vibration for journey to and operation aboard ISS.
Researchers have developed a new laser technique to bind aluminum with plastic in injection molding, creating stronger lightweight materials. The method uses continuous infrared lasers to pretreat aluminum sheets, improving adhesion strength and paving the way for more efficient vehicles.
Researchers at NIST have used LADAR to map distances to objects melting behind flames with precision of 30 micrometers or better. The method could help overcome challenges posed by structural fires.
A team of international researchers has developed a lasing system that produces phonons, the energy products of oscillation, or vibration. By tuning the system to create resonance, they can trigger mechanical movement that generates an acoustic wave. This breakthrough could lead to new medical and materials science applications.
Researchers at Yale University have created a new type of silicon laser that uses sound waves to amplify light, enabling faster and more efficient data processing. The innovative design maximizes light amplification using a special structure developed in the Rakich lab.
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.