Articles tagged with Laser Systems
A new noninvasive imaging method developed by MIT researchers can penetrate deeper into living tissue than previous techniques, producing richer and more detailed images. This breakthrough enhances biological research capabilities, enabling scientists to study immune responses and develop new medicines with greater accuracy.
A prototype mobile all-light communication network has been demonstrated, enabling reliable two-way data transmission across moving nodes on drones, vehicles, and ships. The system uses different light sources to ensure uninterrupted connectivity and dynamically aligns optical paths between moving nodes.
Researchers at Kaunas University of Technology (KTU) have developed a unique nanolaser that uses silver nanocubes to generate and amplify light. The laser's operating principle resembles a hall of mirrors, allowing efficient light generation in an optically active medium.
Physicists at the University of the Witwatersrand developed an innovative computing system harnessing laser beams and display technology to process multiple possibilities simultaneously. This approach could speed up complex calculations in fields like logistics and finance, with potential applications in quantum optimisation and machin...
Scientists have created a method to recover and reuse quantum dots used in microscopic lasers, enabling the sustainable management of these valuable materials. The new recycling technique has been successfully tested on defective samples, resulting in the recovery of 85% of the quantum dots with minimal loss.
Researchers at UW–Madison developed an approach to simultaneously mitigate three types of defects – pores, rough surfaces, and large spatters – in metal parts produced using laser powder bed fusion. This breakthrough enables the production of high-quality parts with increased manufacturing productivity.
The collaboration aims to commercialize mid-scale plasma-electrode Pockels cell technology, enhancing inertial fusion research and development with improved laser system design and performance. The project builds on Sydor Technologies' record as a key manufacturing partner for inertial fusion facilities.
Researchers at Yokohama National University have developed a laser-based bubble printing technique that creates ultra-flexible liquid metal circuits, overcoming traditional wiring limitations. The resulting wiring lines are incredibly thin, conductive, and highly flexible, with potential applications in wearable technology and healthcare.
Nanomechanical resonators have been used to sense minuscule forces and mass changes. The new aluminum nitride resonator achieved a quality factor of over 10 million, opening doors to new possibilities in quantum sensing technologies.
Researchers developed a highly sensitive hydrogen detection system using tunable diode laser absorption spectroscopy (TDLAS) with high selectivity and rapid response. The new method achieved accurate measurements of hydrogen concentrations from 0.01% to 100%, improving the detection limit at longer integration times.
Researchers developed a method to measure the brightness of two-photon stimuli using photometric units, enabling the quantification of perceived brightness. The study found that two-photon retinal illumination can reach almost 670 cd/m² in safe laser power ranges.
A new type of cationic epoxy photoresist exhibits greater sensitivity to two-photon laser exposure, enabling fast writing speeds and fine features. The material was developed by a research team led by Professor Cuifang Kuang, who achieved lithography speeds of 100 mm/s and resolution of 170 nm.
Researchers at MIT have designed tiny particles that can be implanted at a tumor site, delivering heat and chemotherapy to treat cancer. The treatment approach has been shown to completely eliminate tumors in most mice and prolong their survival.
Researchers have developed a machine learning-based approach to detect keyhole pores in laser powder bed fusion (LPBF) metal 3D printing, achieving over 90% accuracy. The method uses simple light and sound sensors to monitor the printing process and accurately detect defects with a temporal resolution of 0.1 milliseconds.
Researchers have developed a reconfigurable three-dimensional integrated photonic processor specifically designed to tackle the subset sum problem, a classic NP-complete challenge. The processor operates by allowing photons in a light beam to explore all possible paths simultaneously, providing answers in parallel and demonstrating hig...
Researchers at HSE University identified universal critical indices for calculating fibre laser characteristics and operating regimes. The study enables predictions of laser parameters and facilitates optimisation for various applications.
Researchers developed a light-driven, toroidal micro-robot that can navigate complex environments like medicine and environmental monitoring. The innovation uses liquid crystalline elastomer to overcome viscous forces and enables autonomous movement in low Reynolds number regimes.
Researchers developed boron nitride nanotubes with spin qubits, more sensitive to off-axis magnetic fields than diamond tips. The technology has applications in quantum sensing, semiconductor industry, and nanoscale MRI.
Researchers developed a method combining AI and thermal cameras to enhance weightlifting training, providing data-driven insights for targeted strategies. The approach enables real-time tracking of muscle activation, strain detection, and temperature changes, ultimately helping athletes optimize performance and safety.
A new wearable laser device can non-invasively monitor changes in brain blood flow and volume, offering a simple way to assess stroke risk. The device uses speckle contrast optical spectroscopy to detect early physiological signs of increased stroke risk.
A team of researchers from USC and Caltech developed a new noninvasive tool to measure brain blood pressure, assessing stroke risk through changes in blood flow and volume during a stress test. The affordable, portable device has the potential to transform stroke care by providing more reliable data than existing questionnaires.
Researchers have developed a new optical atomic clock that uses a single laser and doesn't require cryogenic temperatures, achieving similar performance to traditional clocks. The innovative design eliminates the need for extreme cooling, allowing for hot atoms and a simplified clock architecture.
Scientists at Chalmers University of Technology have successfully combined nonlinear and high-index nanophotonics in a single nanoobject, creating a disk-like structure with unique optical properties. The discovery has great potential for developing efficient and compact nonlinear optical devices.
Researchers have achieved data rates of up to 424Gbit/s using plasmonic modulators for free-space optical communication. This technology could provide high-speed, high-capacity data transmission for space missions with lower latency and less interference.
Researchers develop phonon lasers with enhanced power and precision, paving the way for real-world applications in medical imaging and deep-sea exploration. The breakthrough enables more sensitive and less harmful medical imaging techniques and improved communication and navigation for deep-sea vehicles.
Researchers from Zhejiang University have developed a hybrid laser direct writing technique that enables the creation of functional copper interconnects and carbon-based sensors within a single integrated system. The process allows for real-time temperature monitoring over extended periods, ensuring optimal performance and reliability.
Researchers use high-energy synchrotron X-ray to study spatter dynamics during LPBF, revealing links between vapour depression shape and spatter interactions. The study proposes strategies to minimize defects, improving the surface quality of LPBF-manufactured parts.
A new SERS microfluidic system was developed by Shanghai Jiao Tong University researchers, achieving a detection limit lower than 10 ppt of harmful substances. The system uses femtosecond laser-induced nanoparticle implantation into flexible substrate for sensitive and reusable microfluidics detection.
Researchers at Osaka Metropolitan University have developed a new laser-induced forward transfer technique using optical vortex to print magnetic ferrite nanoparticles with high precision. The resulting crystals exhibit helix-like twisted structures that can be controlled by changing the optical vortex's helicity.
A global research team has developed a way to break down plastics using lasers and 2D materials, creating a potential solution for the world's plastic problem. The process involves laying plastics on top of transition metal dichalcogenides and then lighting them up, resulting in the breakdown of molecules into their smallest parts.
The NTU team created a compact and flexible light-based sensing device, like a plaster, to provide highly accurate biomarker readings within minutes. The device detects glucose, lactate, and urea levels in sweat with ultra-high sensitivity and dynamic range.
Researchers developed a new two-photon polymerization technique using two lasers to reduce the power requirement of femtosecond lasers. This approach enables increased printing throughput and lower cost, impacting manufacturing technologies in consumer electronics and healthcare sectors.
Researchers at Osaka Metropolitan University have developed a novel technique to control Förster resonance energy transfer using optical tweezers. The method, which accelerates energy transfer by increasing laser intensity, offers a non-contact approach for microchemistry and quantum dot applications.
Researchers have developed a new 3D method for fast-moving object tracking at unprecedented speeds, with potential applications in autonomous driving, industrial inspection and security surveillance. The approach uses single-pixel imaging to calculate the object's position in real-time, reducing data storage and computational costs.
A new technology combines femtosecond laser-designed lubricated slippery surfaces with electrostatic interactions to manipulate droplets. This allows for diverse working conditions and functions, including driving droplets on inclined surfaces, manipulating various liquids, and sorting particles.
Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.
Researchers at the University of Rochester developed a new microcomb laser design that provides low power efficiency, high tunability, and easy operation. The simplified approach enables direct control over the comb with a single switch, opening up potential applications in telecommunications systems, LiDAR for autonomous vehicles.
Researchers develop a new method to grow single-crystal perovskite hydrides, allowing for accurate measurement of intrinsic H- conductivity. The technique enables the production of high-quality crystals with minimal imperfections, paving the way for sustainable energy technologies and hydrogen storage applications.
Researchers at North Carolina State University have developed a technique that automates quality control during the finishing process of 3D printed metal machine parts. This approach allows users to identify potential flaws without removing parts from equipment, making production time more efficient.
The HZDR team has made a significant advance in laser plasma acceleration, achieving energies of up to 150 MeV for protons. This breakthrough opens up promising applications in medicine and materials science, including new radiobiological concepts for tumor treatment.
Researchers in Brazil have developed a novel method to produce electrochemical sensors using fallen tree leaves, offering an eco-friendly alternative to conventional substrates. The sensors were successfully tested for detecting dopamine and paracetamol concentrations, demonstrating their potential for medical and laboratory applications.
Researchers at Columbia Engineering have developed a technique to modify 2D materials using lasers, creating tiny nanopatterns that can capture quasiparticles called phonon-polaritons. This method uses commercially available tabletop lasers and doesn't require an expensive cleanroom or etching equipment.
Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. The system uses single-photon detection techniques to measure time-of-flight, enabling highly accurate 3D mapping of terrain and objects even in challenging environments.
Researchers from Pohang University of Science & Technology have fabricated a small-scale energy storage device that can stretch, twist, fold, and wrinkle. The device features fine patterning of liquid metal electrodes using laser ablation, allowing it to maintain its energy storage performance under repeated mechanical deformations.
Researchers developed a compact swept-source Raman spectroscopy system for identifying both chemical and biological materials. The portable system addresses limitations of bulky dispersive Raman spectrometers, providing accurate results comparable to conventional systems.
A new approach uses a smartphone screen to create full-color 3D holographic images by leveraging computer-generated holography (CGH) and an optical component called a spatial light modulator. The method has the potential to enhance near-eye displays in virtual reality headsets, creating more realistic and interactive user experiences.
Researchers developed an index to optimize picosecond laser treatment for skin blemishes, showing low complication rates and high efficacy. The wavelength-dependent indicators are expected to improve the safety and effectiveness of the treatment.
Flinders University researchers have discovered a light-responsive, inexpensive sulfur-derived polymer receptive to low power, visible light lasers, enabling precise patterns on the polymer surface. This novel system has potential applications in data storage, biomedical devices, electronics, sensors, and microfluidics.
The researchers achieved 20-level intermediate states of phase change materials using a micron-scale laser writing system. This allows for the demonstration of ultra-high flexibility in phase modulation and potential applications in neuromorphic photonics, optical computing, and reconfigurable metasurfaces.
Scientists have developed a new method to manipulate light using synthetic dimension dynamics, enabling precise control over light propagation and confinement. This breakthrough has significant implications for applications such as mode lasing, quantum optics, and data transmission.
Scientists from TIFRH successfully generate MeV temperature electrons at a fraction of the previously thought necessary laser intensity. The technique uses two laser pulses to create tiny explosions in microdroplets and accelerate electrons to megaelectronvolt energies.
Researchers developed a wearable device for non-invasive monitoring of hemodynamic indicators like heart rate, blood pressure, and oxygen saturation. The photoacoustic imaging watch offers valuable insights into disease diagnosis and treatment.
Researchers at Pohang University of Science & Technology have devised a technique for mass-producing large-area metalenses tailored for use in the ultraviolet region. The breakthrough enables control over optical properties of UV rays, sparking interest in potential advancements for medical devices and wearable technology.
A novel transparent ultrasonic transducer (TUT) developed by POSTECH researchers offers exceptional optical transparency and maintains acoustic performance, surpassing conventional limitations. This breakthrough enables high-depth-to-resolution ratios for ultrasound imaging, with applications in various medical devices and fields.
A new type of frequency comb, called a microcomb, is developed by Stanford researchers that can be used to measure light with unprecedented precision. The device is innovatively small, ultra-energy efficient, and exceptionally accurate, making it suitable for widespread adoption in everyday electronics.
Nontraditional energy-assisted mechanical machining uses vibration, laser, electricity, etc. to improve machinability and reduce process forces in processing difficult-to-cut materials and components. The technology provides a feasible way to enhance material removal rate and surface quality.
Researchers successfully cooled positronium atoms to record-low temperatures of 170 K, significantly reducing their transverse velocity component. This achievement has far-reaching implications for precision spectroscopy and the study of quantum electrodynamics.
Stanford researchers have successfully accelerated and steered electrons at the microchip scale using silicon dielectric laser accelerators. This breakthrough enables the creation of tiny linear accelerators that could rival larger systems, with potential applications in medical treatments such as targeted cancer therapies.
Researchers developed a compact microscope using a single photon avalanche diode array detector, enabling super-resolution imaging with improved signal-to-noise ratio and spatial resolution. The system also combines fluorescence lifetime measurements for enhanced structural specificity.
Researchers from the University of Rochester's Laboratory for Laser Energetics demonstrated an effective 'spark plug' for direct-drive methods of inertial confinement fusion (ICF), achieving a plasma hot enough to initiate fusion reactions. The successful experiments use the OMEGA laser system, with the goal of eventually producing fus...