Articles tagged with Laser Light
A team at Brigham Young University has developed a method to produce full-color, aerial volumetric images with 10-micron image points using photophoretic optical trapping. The display can be seen from any angle, unlike traditional holographic projections, and is akin to a 3D printer for light.
Researchers used high-speed pulse-chase imaging to study fungal growth, revealing precise timing of vesicle movement and motor protein involvement. The technique provided unprecedented precision, allowing for the discovery of different types of vesicles moving at varying velocities along the hypha.
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.
Scientists have developed a new method for microscopy that surpasses the Abbe diffraction limit by utilizing chirped laser pulses and quantum dots. This breakthrough enables the imaging of biological samples at resolutions of 1/31 of the wavelength of light, opening up new possibilities for nanoscale analysis.
Researchers at OIST Graduate University studied the Marangoni effect, which causes soap to spread on water's surface. They developed a method to quantify the phenomenon through three independent measurements, showing that surfactant dissolution and spreading affect its behavior.
Researchers at Lomonosov Moscow State University developed a new mathematical model that describes the process of soliton occurrence in optical microresonators, taking Raman scattering into account. The system of equations may be used for numerical simulation of effects in optical resonators.
Researchers successfully produced a high-powered, randomly polarized laser beam using a 'Q switch' laser, which typically emits brief pulses of light. This breakthrough expands the potential applications of smaller and more powerful lasers in various fields.
PTB physicists have developed a frequency-doubling unit that can endure transportation and maintain accuracy. The unit is based on a highly stable monolithic enhancement cavity for second harmonic generation, enabling reliable laser light for quantum-optical experiments.
The researchers have developed a new device that uses sound waves to produce ultraminiature optical diodes, enabling nonreciprocal devices for photonic integrated circuits. These devices protect laser sources from back reflections and are necessary for routing light signals around optical networks.
Researchers will test the quantum superposition principle (QSP) in a microscopic system, exploring its validity at larger scales. If successful, this could lead to robust quantum technology for daily applications, enabling faster data processing and transmission.
The new technique enables the creation of microstructures with high resolution, potentially paving the way for endoscopic printing in people. Researchers are working to develop biocompatible photopolymers and a compact delivery system before the technique can be used clinically.
Scientists have developed a multiresponsive nanosurfactant that can manipulate liquid droplets using magnetic fields, electric fields, and light. The droplets can be assembled into complex structures and mixed to create chemical reactions.
The observation of two neutron stars merging generated tiny ripples in spacetime called gravitational waves, detected by LIGO detectors on Earth. This event also triggered an explosion studied by hundreds of astronomers worldwide, marking a major breakthrough in astrophysics and offering new tools for observing the universe.
The new instrument uses micro Raman spectroscopy to detect organic compounds and minerals associated with biological activity. It can analyze samples up to 10 centimeters away with high resolution, significantly improving previous instruments.
Researchers have developed an electrically pumped organic semiconductor laser that overcomes the challenge of high optical loss and achieves a low threshold current, paving the way for room temperature continuous-wave lasing. The device uses a small molecule doping system and has a peak wavelength of 621.7 nm.
Researchers create a subwavelength dielectric resonator that can trap light for an extended period due to destructive interference, allowing for more efficient optical devices. The structure is capable of suppressing energy leakage and keeping light for ten times longer than conventional resonators.
Researchers at KAUST have demonstrated rapid data transfer using ultraviolet-B light, overcoming interference issues with visible light and improving beam alignment challenges. The system achieved a record-breaking transmission rate of 71 megabits per second.
A team of researchers at ETH Zurich has directly observed collective quantum modes in a quantum simulator, revealing the behavior of Goldstone and Higgs modes. This breakthrough sheds new light on fundamental phenomena like magnetism and superconductivity.
Researchers at UTA and UVM have developed a novel group-delay-managed nonlinear-optical medium, enabling simultaneous all-optical regeneration of multiple WDM channels by a single device. This breakthrough could lead to cheaper and more energy-efficient high-speed internet communications.
A new optical-fiber-based laser enables detection of chemicals by analyzing reflected light patterns. The device uses a broadband infrared supercontinuum laser to identify substances based on their chemical signature.
A new vector polarizer design has been developed, enabling flexible filtering of a wide range of light sources and generation of new light states. This advancement can improve optical systems such as super-resolution microscopy and quantum communications.
A team of researchers at Caltech has developed a way to encode multiple holographic images in a single surface using carefully engineered silicon oxide and aluminum surfaces. The technology works by reflecting light differently depending on the angle of incoming light, allowing for high-quality images with no loss of resolution.
Researchers at UC Berkeley found that blackbody radiation from a warm object can attract cesium atoms, with an effect 20 times stronger than gravity. This discovery has implications for precise measurements of fundamental constants and tests of general relativity.
Researchers use ultrafast laser to study camphor molecules' photoionization, finding that mirror images emit electrons in opposite directions. This asymmetry could be key to understanding the homochiral nature of living organisms.
Researchers at Tohoku University have developed a computational simulation that shows the potential of ultrafast laser pulses to switch electrons' spins in magnetic materials, enabling faster magnetic memory devices. The study suggests perovskite manganites and layered manganites as possible materials for testing their model.
Researchers at the University of Colorado at Boulder are developing a new laser microscopy technique to study the progression of neurodegenerative diseases like Alzheimer's. This technique, which involves shooting pairs of photons deep into brain tissue, may enable earlier diagnosis and better treatment options.
Researchers have created three-dimensional topological insulators that can control light localization in all directions, promising major technological advances. These structures have a considerable practical potential for applications in optical computers, communication networks, antennas, and lasers.
By forcing light to go through a smaller gap, researchers have increased its intensity and allowed photons to interact more strongly over a short distance. This technology brings optical processing closer to electrical transistors, potentially solving the problem of nonlinear optics and enabling faster, more efficient computers.
Researchers from QUT, KIT, and Ghent University create a light-switchable chemical reaction system to revolutionize chip printing. The system uses visible light to reversibly switch certain chemical processes, potentially making it cheaper, simpler and safer.
Researchers at LMU Munich create a new mode of electron microscopy that enables the observation of fundamental interactions between light and matter in real time and space. The technique uses attosecond pulse trains to monitor ultrafast processes initiated by light oscillations onto matter, allowing for sub-atomic resolution.
A team of physicists from Harvard University has developed a special type of quantum computer, known as a quantum simulator, which is programmed by capturing super-cooled rubidium atoms with lasers. The system could shed new light on material properties and complex optimization problems.
Researchers at Lomonosov Moscow State University have developed a new time-resolved spectroscopy method that analyzes quantized light transmitted through samples without femtosecond lasers. This design allows for cheaper analysis and preserves the sample, enabling studies of interactions and processes in substances.
Scientists at the University of Vienna have developed an incredibly stable nanoscale clock that can maintain its accuracy for extremely long periods. The clock, which consists of a levitated silicon cylinder, has a precision of one millionth of a second over four days.
A team of researchers has discovered that ions in hybrid perovskite crystals migrate and create regions with reduced efficiency, degrading the material's performance. Limiting this ion migration could lead to improved high-efficiency solar cells with low costs.
Researchers at Los Alamos National Laboratory have successfully amplified light using electrically excited films of quantum dots. The team developed a novel approach to eliminate heat loss and achieve optical gain, paving the way for highly flexible, electrically pumped lasers that can complement or displace existing laser diodes.
Researchers at Rice University have discovered that borophene, a two-dimensional boron material, can emit visible and near-infrared light by activating its plasmons. This property makes it a promising candidate for plasmonic and photonic devices such as biomolecule sensors, waveguides, nanoscale light harvesters, and nanoantennas.
Researchers developed a new optogenetic technique that enables precise stimulation of individual neurons, allowing for the study of how cells generate specific behaviors. By targeting single neurons, scientists can map connections among neurons that underlie behavior and analyze how those connections change in real-time.
The study confirms years of theoretical work and shows attophysics is ready to tackle complex molecules. Researchers used extremely short laser pulses and sensitive detection to distinguish between electrons with minimal speed difference.
A new study of patients who underwent laser treatment to vaporize floaters found a very low complication rate and significant improvement in vision. Most patients reported no complications and experienced improved vision after the procedure.
Researchers used laser-created plasmas to simulate astrophysical behavior, finding two processes that transfer energy from magnetic reconnection to particles. Fermi acceleration and X-line acceleration were identified as key mechanisms.
A NASA team is studying a CubeSat mission concept called Mini Lunar Volatiles Mission (MiLUV) to detect water on the lunar surface. The mission will use a laser spectrometer to measure surface reflectance at several wavelengths and gather data on the distribution and possible mobility of volatiles.
The NIST team has developed a directional color filter that can manipulate multiple wavelengths of light simultaneously and detect the source of incoming light. The device uses a nonuniform grid to selectively filter white light based on its angle of illumination, enabling applications in displays, solar energy harvesting, and sensing.
Physicists at NIST have created a new method to link atoms' properties quickly, potentially providing precise sensing and quantum computer tools. The approach uses dipolar interaction to enable fast entanglement propagation through groups of atoms.
Researchers have successfully developed a method to analyze microscopic structures using incoherently scattered light, improving the analysis of small-scale biological systems. The technique has the potential to enhance imaging capabilities in fields like biology and medicine.
Researchers have successfully shaped nano-sized gold particles using ultrafast lasers, enabling the creation of
An international team of researchers has made a groundbreaking discovery about matter accretion in young stars, allowing for more accurate calculations of the accretion rate. This finding is crucial for understanding the life cycle of stars and their growth under gravity's influence.
Scientists at Harvard have created a new tool to study novel aspects of light, enabling more complex operations and applications. The metasurface connects two aspects of light, allowing for the creation of any structured beam, including spirals, corkscrews, and vortices.
Researchers developed a single-step, laser-based method to produce hybrid microstructures of silver and silicone. These structures exhibit both electrical conductivity and flexibility, making them suitable for sensing mechanical forces and enabling new types of optical and electrical devices.
Researchers at the National University of Singapore have developed a super-resolution imaging technique that doubles the odds of successful photon interaction with atoms. This innovation has significant implications for quantum computing and metrology, as it enables stronger interactions between photons and atoms.
Researchers at Brookhaven National Laboratory developed a method to reduce surface reflections from glass surfaces to nearly zero by etching tiny nanoscale features into them. This achievement could enhance solar cell efficiency, improve electronic display use, and support high-power laser applications.
Researchers have discovered a way to visualize tiny vibrational resonances using quantum dots, which could lead to the development of new sensing technologies. The technique uses light waves to drive the motion of a thin membrane, creating patterns that can be visualized through an array of quantum dots.
A team of scientists has captured the time delay between X-ray flares and optical light flashes in a stellar-mass black hole, resolving controversy over jet plasma activation. This study uses precise multi-wavelength observations to demonstrate that relativistic jets are formed by gravity and magnetic fields.
The James Webb Space Telescope aligns its primary mirror segments through wavefront sensing and control, measuring imperfections with a near-infrared camera instrument. Engineers use computer algorithms to determine the mirror's shape and movement, resulting in sharp, focused images.
Scientists from IBM Research developed a tiny, low-cost methane spectrometer that can detect concentrations as low as 100 parts-per-million. The device has the potential to be used in an inexpensive sensor network to autonomously monitor for natural gas leaks and reduce greenhouse gas emissions.
Researchers at University of Cambridge develop a printing technique that can write structures small enough to trap and harness light. The method combines high-resolution inkjet printing with nanophotonics, enabling the creation of sensors, lasers, and compact optical circuits.
The James Webb Space Telescope successfully tested its optics alignment using a unique 'selfie' photo. The image verified the line of sight for the telescope's cryogenic testing configuration.
Brown University researchers have developed a method to manipulate the spatial coherence of light, transforming it from incoherent to coherent and vice versa. By controlling surface plasmon polaritons, they achieved strong modulation across a range of 0-80% coherence, breaking previous barriers.
UCSB astronomers capture the fleeting kilonova using a network of telescopes and gravitational wave data. The event sheds light on the formation of heavy elements in the universe.
Los Alamos National Laboratory researchers have developed a new method to create quantum dots that emit laser light more efficiently, using less power. The treatment involves adding extra electrons to the dots, allowing them to produce laser light without external stimulation.
Rice University researchers have found that placing gold nanodisks into groups can selectively alter their vibrational frequencies, a discovery that could lead to new ways of converting light energy into mechanical energy. The study's findings show promise for applications in secure communications, sensing, and other fields.