Articles tagged with Laser Systems
A Harvard-led team created a new method for processing quantum information that allows for the dynamic change of atoms' layout during computation, expanding capabilities and enabling self-correction of errors. This approach uses entanglement to connect atoms remotely and can process exponentially large amounts of information.
Harvard researchers have successfully integrated a high-power laser onto a lithium niobate chip, a major breakthrough in the development of high-performance chip-scale optical systems. The integration enables the creation of fully integrated spectrometers, optical remote sensing, and efficient frequency conversion for quantum networks.
Researchers developed a full-function bioelectronic photocell using genetically modified proteins attached to a carbon nanotube. The system can change its electronic properties in response to light, operating as a spotlight or memory cell. This discovery opens the door to environmentally friendly electronic elements, memory devices, an...
Researchers at Stanford University have developed a new approach to enable standard image sensors to capture light in three dimensions. The system uses acoustic resonance and piezoelectric properties of lithium niobate to modulate light, allowing for high-performance lidar capabilities in compact devices.
A team of researchers used the National Ignition Facility (NIF) to create a laboratory replica of galaxy-cluster plasmas, discovering strong suppression of heat conduction in these turbulent environments. The experiments provide insight into complex physics processes and raise additional questions that may be answered in future studies.
Scientists elucidated the structures at the interface between a working catalyst and reacting molecules in vanadium pentoxide, revealing which oxygen atoms activate hydrocarbons. The study showed that temperature and gas composition influence the reaction, leading to more sustainable oxidation processes.
Researchers have demonstrated control of graphene's relaxation time, allowing for novel functionalities in devices such as light detectors and modulators. This work paves the way for the development of ultrafast optical devices with potential applications in photonics and telecommunications.
Researchers calculate that low-power lasers on Earth could launch and maneuver small probes equipped with silicon or boron nitride sails, propelling them to much faster speeds than rocket engines. The lasers could propel tiny sailed probes on interplanetary or interstellar missions without requiring large amounts of fuel.
Researchers at UW-Madison have developed an ultra-precise atomic clock that can measure time differences to a precision equivalent to losing one second every 300 billion years. By using a 'multiplexed' optical clock design, the team was able to test ways to search for gravitational waves and detect dark matter with unprecedented accuracy.
Researchers have designed a tiny and flat antenna for receiving and transmitting terahertz signals, enabling the miniaturization of THz devices. The new design integrates the antenna with the system, eliminating the need for bulky silicon lenses and reducing optical power required.
Researchers at NIST developed an instrument to image acoustic waves over a wide range of frequencies with unprecedented detail. The new instrument captures these waves by relying on an optical interferometer, allowing for the creation of three-dimensional movies of microresonators' vibrational modes.
Researchers at INRS developed a method to amplify weak optical signals while reducing noise content using the Talbot self-imaging effect. This technique has potential applications in various fields like telecommunications, bioimaging, and remote sensing.
A collaborative research project on quantum technology has started on the International Space Station (ISS), utilizing ultracold atoms to conduct fundamental research and develop future quantum sensors. The BECCAL experiment is a multi-user platform open to international scientists, allowing them to test their ideas in practice.
Scientists at Georgia Tech Research Institute have demonstrated a new approach for transporting trapped ion pairs through a single laser beam to create entangled qubits. This method reduces the need for multiple optical switches and complex controls, potentially simplifying quantum systems.
Cornell researchers have successfully trained various physical systems, including mechanical, optical, and electrical systems, to perform machine learning tasks. The developed training algorithm enables diverse systems to be chained together for efficient processing.
A team at the University of Washington has created an optical computing system that not only reduces noise but also utilizes it to improve creative output. The system uses a Generative Adversarial Network and demonstrates the viability of this technology at a large scale.
Researchers have developed a method to analyze audio from graphene production, allowing for near-instantaneous assessment of product type and purity. This approach could improve manufacturing processes, such as flash Joule heating and sintering, by providing real-time data on material properties.
A new wearable headset, Kernel Flow, monitors brain activity using time-domain fNIRS. The system can record high-resolution brain signals from across the brain with performance similar to conventional systems.
University of Houston engineers Jiming Bao and Feng Lin create upward fountains in deep water by shining laser beams on the surface, attributing the phenomenon to the Marangoni effect. The discovery has potential applications in lithography, 3D printing, heat transfer, and microfluidics.
Femtosecond laser precision engineering enables micro/nano-structure creation with high resolution and dry processing. Key challenges include achieving small heat affected zones and ensuring sufficient processing speeds for industrial needs.
Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.
A new fluid has been created that can be molded and patterned using light, with potential applications in adaptive optics, mass transport, and microfluidics manufacturing. The fluid's surface tension is dependent on temperature, making it susceptible to laser manipulation.
Researchers have found that ultrashort-pulse lasers can inactivate antibiotic-resistant bacteria and bacterial spores, reducing their numbers by over 1,000 times. The technology has the potential to be used to sterilize wounds and disinfect blood products, and may also be used to treat bloodstream infections.
A team of researchers has developed a simple and efficient method of quantum encryption using single photons, which can detect any attempt to hack the message. The breakthrough brings us closer to securing our data against quantum computers' potential attacks.
The UK Space Agency has awarded £650,000 to Northumbria University to develop a commercially available laser-based inter-satellite communications system. The new technology promises to transform the satellite communications industry by transmitting data 1,000 times faster and more securely.
Researchers used nationwide airborne laser scanning data and forest inventories to predict bilberry and cowberry yields in Sweden. The models indicate potential berry picking locations but do not accurately predict yields.
A research team led by Professor Luca Razzari at INRS has successfully generated coherent, intense visible light pulses with femtosecond duration using a simplified setup. This innovation opens up new possibilities for studying various phenomena in physics, chemistry, and biology.
Researchers at North Carolina State University have developed a new synthesis process that increases the number of holes in p-type III-nitride semiconductor materials, leading to more efficient LEDs and lasers. This breakthrough could also help address the long-lasting problem called the 'green gap' in LED technology.
A team at Tampere University has created a metamaterial eENZ mirror that can control the correlation properties of light, switching between high and low correlation states. By manipulating polarization, they achieve near-perfect coherence switching.
A new optical switch created by an international team could replace electronic transistors in computers, manipulating photons instead of electrons. The device requires no cooling and is fast, with operations per second between 100 and 1,000 times faster than current commercial transistors.
Physicists at the University of Bath have found a way to reveal the forbidden colours of light in twisted nanoparticles, opening up new possibilities for emerging nanotechnologies. This discovery has implications for communications, nanorobotics and ultra-thin optical components.
Researchers from Osaka University have developed a laser-driven neutron source that can generate fast neutrons in short bursts, enabling rapid imaging. The technique was used to detect hazardous substances in batteries and images materials like boron carbide.
Researchers developed a method to overlay a virtual scale on acquired endoscope images in real-time, allowing accurate estimation of colorectal polyp sizes. The approach uses triangulation principles and minimal image processing, enabling cost-effective diagnosis without adding extra instrumentation.
Researchers at NIST demonstrate a faster and more accurate way to calibrate microphones using lasers. The new technique surpasses the current industry standard, offering potential for commercial applications in industries like factories and power plants.
Researchers from DTU develop Fano laser, harnessing bound-state-in-the-continuum to improve coherence. This advancement enables ultrafast and low-noise nanolasers for high-speed computing and integrated photonics.
Researchers at the University of Rochester have developed a new method using pulsed lasers in liquids to create nanoparticles that can be easily tested for use as catalysts. This technique accelerates the process of discovering effective catalysts, which is crucial for producing essential materials and clean fuels.
Researchers at Tata Institute of Fundamental Research developed a novel method to capture ultrafast motion of plasma at different transverse locations. The team's experiment shows that different portions of the plasma move in and out at different times, contrary to previous expectations.
Researchers have developed a programmable quantum simulator capable of operating with 256 qubits, a significant advancement in the field of quantum computing. The system enables the study of complex quantum processes and has already allowed for the observation of exotic quantum states of matter.
Researchers developed sensitive SERS substrates via femtosecond laser processing for real-time sensing in biomedicine and microfluidic chips. Attomolar detection capabilities were achieved through synergistic enhancement effects, opening up new avenues for monitoring and sensing applications.
Researchers have demonstrated cooling a large-scale object to nearly the motional quantum ground state, increasing sensitivity in detecting gravitational waves. The method achieved an average phonon occupation of 10.8, suppressing quantum back-action noise by 11 orders of magnitude.
Researchers develop a laser-driven method to synthesize nanoparticles, enabling efficient conversion of solar energy into electricity. The technology also promotes the production of green hydrogen by employing photoelectrodes that use sunlight directly.
Researchers at Max Born Institute created and annihilated skyrmions using laser pulses, demonstrating precise control over their density. The process has potential for use in stochastic computing, enabling fast and energy-efficient data storage and processing.
Researchers at CoReLS have realized the highest laser intensity ever reached, exceeding 1023 W/cm2. This achievement allows for the exploration of extreme physical conditions and novel physical phenomena, such as Compton scattering and photon-photon scattering in nonlinear regimes.
Researchers have demonstrated a record-high laser pulse intensity of over 1023 W/cm2 to study complex interactions between light and matter. This achievement will enable exploration of high-energy cosmic rays and the development of new sources for cancer treatment.
Researchers at University of Pennsylvania designed supersymmetric microlaser arrays to achieve higher power density and stability, paving the way for more efficient photonic devices. The arrays can collectively emit orders of magnitude higher power than traditional lasers.
Researchers designed and built two-dimensional arrays of closely packed micro-lasers that achieve power density orders of magnitude higher, paving the way for improved lasers, high-speed computing, and optical communications. The breakthrough enables single-mode lasing with enhanced emission power and increased coherence.
Researchers at the University of Tokyo have developed a new way to observe laser interactions, enabling accurate control over laser-based manufacturing processes. The discovery could lead to significant improvements in precision and efficiency in industries such as laboratory, commercial, and industrial applications.
A research team developed a straightforward method to find high-Q modes in single dielectric nanocavities. They discovered high-Q modes using Mie mode engineering and avoided crossing, resulting in improved photonic device performance and applications.
Researchers have established a high-efficiency pulse compression method using optical solitons in periodic layered Kerr media, achieving >85% compression efficiency. This method has the potential to widely use ultrafast lasers in physics, chemistry, and biology labs with low cost and flexibility.
Researchers developed a multiwavelength OR-PAM system based on a single laser source, enabling simultaneous multicontrast imaging of hemoglobin concentration, blood flow speed, blood oxygen saturation, and lymphatic concentration. This innovation shortens imaging time and improves accuracy for functional imaging in biological tissues.
Researchers at Nanyang Technological University have developed a laser system that generates random numbers at speeds over 100 times faster than current technologies. The system uses an hourglass-shaped cavity to create unique patterns, which are then used to generate random sequences of information.
Researchers at Harvard Medical School and Peking University introduce a novel technique for tracking individual cells using omnidirectional visible laser particles. The innovative method reduces orientation-dependent intensity fluctuations, allowing for blinking-free tracking of single cells under complex biological conditions.
Researchers found a new lasing mechanism in water droplets that can record subtle biomolecular interactions and dynamics. The mechanism is sensitive to interfacial molecular forces, allowing for the amplification of changes in laser emission characteristics.
A team of scientists has developed a novel hydrogel formula based on PEGda and HMPP for 3D direct laser writing (DLW) with low threshold power using a green laser. The new formula enables the fabrication of precise microstructures with high resolution and mechanical stability, suitable for biomedical engineering applications such as wo...
The Advanced Laser Light Source Laboratory (ALLS) at INRS has received significant funding to upgrade its laser facilities, enabling researchers to access revolutionary applications in physics, chemistry, and materials science. This upgrade positions INRS as a leader in ultrafast science and quantum technologies.
Researchers at Aalto University developed a new way to break the reciprocity law by changing material properties periodically. This breakthrough could lead to efficient nonreciprocal devices, such as compact isolators and circulators, for next-generation communication systems.
Researchers at Washington University in St. Louis have developed a protein footprinting method called Fast Photochemical Oxidation of Proteins (FPOP) to investigate protein structure and interactions. FPOP offers advantages such as fast labeling time, irreversible nature, high sensitivity, and broad amino acid residue coverage.
Scientists study how tuning aspects of a powerful laser beam can affect the acceleration of electrons, finding that optimal values of laser beam waist increase maximum acceleration. They observe significant energy gains in full and half-pulse interactions, reaching up to 1 GeV.
Researchers have demonstrated a way to control nanoparticles to lase at low power, producing sharp signals for biosensing and bio-imaging. This breakthrough reduces tissue damage and improves the accuracy of sensing indicators, holding promise for early-stage disease detection.
Researchers at INRS used the Advanced Laser Light Source facility to generate extremely short and intense laser pulses that are highly-stable in time and space. The discovery has significant technological impact, enabling compact high-power laser systems for industrial applications and advanced biomedical imaging.