Research using lasers and light-based technology. Covers electron control, metalens optics, mid-flight drone charging, and water purification.
A team of scientists has successfully developed a working prototype of a 'shoebox-sized accelerator on a chip,' which could revolutionize fields like biology, chemistry, and materials science. The $13.5 million grant-funded project aims to make particle accelerators smaller, cheaper, and more accessible.
Researchers have developed a new technique to trap light at the surface of graphene using laser pulses, enabling the steered light to be directed across the material's surface. This breakthrough has significant implications for advances in electronic products, such as sensors and miniaturized integrated circuits.
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.
NC State University researchers developed techniques to create ideal geometric phase holograms for any type of optical pattern. These holograms can focus, disperse or modify light efficiently. The breakthrough enables creation of new displays, imaging systems, telecommunications technology and astronomical instruments.
A new nanoparticle with onion-like layers converts low-energy near-infrared light to higher energy blue and UV light with record-high efficiency. This innovation enables improved performance in technologies such as deep-tissue imaging, security inks for printing money, and bioimaging.
Physicists at the University of Maryland have accelerated electron beams to nearly the speed of light using millijoules of laser pulse energy, a significant improvement over previous methods. This breakthrough could lead to ultra-compact machines useful for materials science and medical imaging, overcoming barriers in cost, complexity,...
Researchers demonstrated the fabrication of high-Q LN microresonators using femtosecond laser micromachining, achieving efficient second harmonic generation (SHG) in the visible wavelength range. The normalized conversion efficiency of SHG was measured to be 1.35×10-5 /mW.
Researchers found a new type of multipolar order in strontium-iridium oxide, which could lead to breakthroughs in electronic device functionalities and high-temperature superconductivity. The discovery was made using an optical harmonic generation technique that exploits changes in crystal symmetry.
Researchers at Harvard University have developed a new class of Raman laser using nanoscale diamond resonator, enabling wider wavelength range and potential for improved telecommunications. The device works by converting one frequency of laser light to another, opening up possibilities for broadband data communications.
A team of Australian scientists developed a precision laser device to measure temperature with high accuracy. The breakthrough enables any laboratory worldwide to accurately measure temperature, bringing a universally agreed temperature scale to the globe.
Researchers at ETH Zurich have successfully built an electron resonator, focusing electrons between two mirrors. The resonator's spin-coherent coupling could enable long-distance communication between quantum dots, solving a key challenge in quantum computing.
Researchers from UC Santa Barbara develop a simple new electron-beam multilayer deposition technique to create high-quality ITO intracavity contacts, yielding significant improvements in optoelectronic properties. The technique paves the way for others to enter this realm of research and provides a critical part of gallium nitride-base...
Researchers at the University of Strathclyde have produced the shortest electron bunches ever by surfing plasma waves, with a length one 300th of a hair's breadth and traveling at nearly light speed. This breakthrough is part of the ALPHA-X project aimed at creating a table-top attosecond coherent X-ray source.
Researchers at the University of Rochester developed a nanoscale photodetector that can detect optical plasmons, generating current with light. The device expands on previous work demonstrating light transmission through silver nanowires, paving the way for miniaturized photonic circuits.
Researchers from the Institute of Physical Chemistry of Poland discover that oxygen plays a crucial role in accelerating photodestruction of molecules. By slowing down oxygen permeation through polymer layers, they can extend the lifetimes of these molecules by several hundred times.
A team of researchers has developed a unique source of coherent radiation for identifying and quantifying molecules in complex mixtures. The new laser can detect minimal amounts of disease markers present in exhaled breath, with the potential to diagnose potentially lethal diseases early.
Researchers at ICFO have developed a new light source that detects minute changes in spectral features, ideal for identifying DNA mutations and cellular malfunctions. The mid-wave infrared range is crucial for resonantly exciting molecular vibrations, leaving fingerprints in the spectrum for identification.
Researchers have successfully trapped single atoms or molecules using a laser light in a doughnut-shaped metal cage. This breakthrough could lead to the development of advanced storage devices, computers, and high-resolution instruments. The technique uses scanning probe microscopy techniques to access individual nano-traps.
Researchers at OIST have developed a method to increase efficiency of THz emission in gallium arsenide-based devices using femtosecond-laser-ablation. This technique improves the material's properties, leading to near 100% photon absorption and broader absorption bandwidth.
Researchers at INRS have developed an optical chip that can generate cross-polarized photon pairs, paving the way for more efficient and low-cost telecommunication networks. This breakthrough technology has the potential to revolutionize optical communication and applications such as signal processing and spectroscopy.
SLAC's 'electron camera' visualizes ripples in 2D material for the first time, revealing atomic-level movements and guiding future device development. The breakthrough could lead to efficient solar cells, fast electronics and high-performance catalysts.
A new approach uses light to move mirrors, reducing the need for external controls in LIDAR and OCT devices. This could lead to compact and lightweight components suitable for smartphones or small UAVs.
Researchers successfully demonstrated squeezing of individual light particles, or photons, using an artificially constructed atom. The experiment achieved this by shining a faint laser beam on to their artificial atom, which excited the quantum dot and led to the emission of a stream of individual photons.
Researchers at the University of Strathclyde are developing groundbreaking plasma-based light amplifiers to replace traditional high power laser amplifiers. The new technology has the potential to produce real particles from virtual particles, cracking the vacuum and achieving a significant scientific breakthrough.
A team at the University of Warsaw has developed a femtosecond laser that generates ultrashort pulses even under extreme conditions. The device uses an optical fiber to generate pulses with minimal sensitivity to external factors, making it highly dependable and suitable for industrial applications.
Researchers create a technique to emit electrons in a controlled direction using near-fields induced by strong laser pulses on glass nanoparticles. This method has potential applications in cancer therapy and imaging methods.
Scientists at HZDR and TU Dresden create compact camera that enables precise filming of dynamic processes at the nanometer scale. The instrument combines advantages of two methods, allowing high spatial and temporal resolution.
Researchers at TU Wien have discovered new materials that can locally amplify or absorb light, allowing for the creation of undistorted light waves with uniform intensity. This breakthrough enables new kinds of light waves without wave interference, potentially useful for technological applications.
A new portable ultra-broadband laser can sense chemicals for various applications, including security and medicine. The compact device emits light across a broad spectrum of frequencies, enabling real-time detection of chemicals.
A new imaging technology developed by CMU and U of T researchers enables depth-sensing cameras to work efficiently in bright light, including sunlight. This allows for applications such as medical imaging, gaming, and space exploration, where traditional cameras are unable to capture accurate 3D information.
Researchers have induced structures within cells to produce laser light, emitting specific wavelengths that allow for precise labeling and measurement of individual cells. This technology has the potential to tag up to a trillion cells, matching the estimated number of human body cells, enabling applications in basic research and disea...
Researchers at Arizona State University have created a novel nanosheet that emits light of all visible colors, producing a white laser. This technological advance brings lasers closer to being a mainstream light source, potentially replacing LEDs in various applications.
A new type of electro-optic modulator is smaller, faster, and cheaper than traditional models, using plasmon-polaritons to enhance its performance. The device consumes much less energy than current commercial devices, making it a crucial step towards reducing the environmental impact of data transmission.
A new project at Brown University aims to make cells 'smart' enough to emit light precisely when needed to control themselves or their neighbors. This could lead to new ways to treat problems like epileptic seizures, Parkinson's disease, and diabetes.
A team of physicists has confirmed the detection of Weyl points, a kind of massless particle predicted by physicist Hermann Weyl in 1929. The finding was made possible by a novel use of a photonic crystal material, which could lead to new kinds of high-power single-mode lasers and other optical devices.
For the first time, researchers have demonstrated the wavelike behavior of a room-temperature polariton condensate on a macroscopic scale. The team's work has significant implications for future technological breakthroughs, such as polariton micro-lasers and optical transistors.
Caltech researchers used ultrafast electron crystallography to visualize changing atomic configurations of phase-change materials. They discovered a previously unknown intermediate atomic state that represents a physical limit to data recording speeds.
Researchers at the University of Adelaide have developed a non-invasive breath analysis system using an optical frequency comb, which measures molecular content in gas samples with high accuracy and speed. The system has promising potential for broad-scale health screening and could be available commercially in 3-5 years.
Researchers have developed a microscope instrument that can accurately measure the 3D movement of individual molecules over many hours, far beyond current limits. This technology has potential applications in biology, biochemistry, and biophysics, including tracking protein motions and characterizing nanoscale objects.
Researchers measured variations in energy transition within cadmium atom isotopes, identifying physical cause of shift within nucleus. Two main factors influence hyperfine structure: magnetic field from electrons and nuclear electric quadrupole moment.
The new detector, made of Mercury-Cadmium-Telluride alloy, processes infrared signals at a single-photon level, offering unparalleled sensitivity. It has customers for Earth and planetary remote sensing, as well as potential uses in telecommunications, medical imaging, and materials science.
Researchers discovered a way to suppress nonlinear distortions in optical fibers, eliminating signal regeneration needs. This breakthrough enables more bandwidth availability and increased data transmission.
Scientists from Lehigh University, Japan and Canada demonstrate the 'world's first fully functioning single crystal waveguide in glass' for all-optical data transmission. The breakthrough enables compact and multifunctional photonic integrated circuits with high density of components and opportunities for new technologies.
Researchers at Vanderbilt University created nano-spirals that emit blue light when illuminated with infrared laser, providing a customizable signature that's hard to fake. The spirals could be embedded in identification cards or other objects to prevent counterfeiting.
Researchers have developed a nanotechnology that promises to make SERS simpler and more affordable, enabling the detection of trace amounts of molecules in various fields. The universal substrate can trap a wide range of wavelengths, reducing the need for different substrates and increasing the efficiency of sensing techniques.
Researchers from Moscow Institute of Physics and Technology discover how laser pulse filamentation affects preliminary transition of a beam passing through quartz glass. The study has implications for nonlinear optics and may lead to new applications.
Scientists at ANU performed John Wheeler's delayed-choice thought experiment, proving that measurement is everything in quantum physics. The experiment found that reality only exists when observed, confirming the validity of quantum theory and its predictions about interference.
Researchers at ETH Zurich have developed a new microscopy technique that enables selective visualization of individual cells within complex tissue. Using 'chameleon proteins' like Dendra 2, they can highlight single cells or groups of molecules with one color while keeping other cells visible in another color.
Researchers at JQI have discovered special wavelengths, known as 'magic wavelengths', that can trap and excite Rydberg atoms without disturbing them. This breakthrough enables the creation of qubits and interaction of atoms in a useful regime.
Researchers at Texas A&M University demonstrate a bright, speckle-free strobe light source using random Raman lasing emission, enabling rapid imaging of microscopic forms of life. The new laser-like light source has a low level of spatial coherence and can produce high-speed images with improved quality.
By using a superconducting island to mediate interaction, researchers increased radiation pressure coupling by a millionfold, enabling observation of quantum phenomena in larger structures. This breakthrough paves the way for studying mechanical oscillations at the level of a single photon.
Researchers at Northwestern University have created the world's first liquid nanoscale laser that can change colors in real time. The technology has significant advantages over traditional lasers, including simplicity, affordability and room-temperature operation.
A team at Northwestern University has developed a faster and higher quality 3D camera that can be used in more environments and produces better images. The camera uses single-point scanning and is modeled after the human eye, making it much faster and higher quality than existing devices.
The JILA strontium atomic clock has achieved unprecedented precision and stability levels, outperforming previous world records by more than three times. This breakthrough enables the measurement of tiny changes in time and gravity, with applications in advanced communications, positioning technologies, and relativistic geodesy.
Researchers at the University of the Witwatersrand have demonstrated the first observation of angular acceleration in laser light, which can be controlled with a single parameter. This breakthrough could lead to new applications using structured light fields.
Researchers have developed a graphene-based photodetector capable of converting absorbed light into an electrical voltage in less than 50 femtoseconds. The device utilizes ultrafast pulse-shaped laser excitation and highly sensitive electrical readout to achieve this ultrafast conversion.
Researchers have developed a method to grow organic-inorganic hybrid perovskite nanowires into elongated crystals that make extremely promising lasers. The tiny lasers are nearly 100% efficient and can create many colors of light, making them suitable for mini optoelectronics, computers, and sensors.
A new technique based on Optical Coherence Tomography allows conservators to analyze the hidden layers in priceless paintings without removing physical samples. This enables detailed information on the chemical composition of paint and coatings applied over time.
Researchers have successfully slowed down light to 180 km/h using a glass fiber, allowing for the storage of photons and potentially enabling quantum communication over long distances. This breakthrough technology uses cesium atoms coupled to an ultrathin glass fiber to transfer photon information in a controlled manner.
Researchers at MIT have created a new magnetic-field detector that is significantly more efficient than its predecessors. The device uses synthetic diamonds with nitrogen vacancies to measure magnetic fields and has the potential to be used in medical imaging, contraband detection, and geological exploration.