Articles tagged with Photons
Scientists have uncovered the chemical structure behind defects in white graphene that emit single photons, paving the way for controlled fabrication and practical applications. The study reveals a direct link between carbon incorporation and quantum emission, with potential implications for quantum sensing and computing.
Scientists at the University of Groningen designed a rotary motor powered by near-infrared light, overcoming a major limitation of previous designs. The motor uses an antenna to absorb two low-energy photons, which are then transferred to initiate movement.
Researchers Nathalie Picque and Theodor Hänsch developed dual-comb spectroscopy to detect spectral patterns even in extremely low light conditions. This technique enabled the recording of broad spectra with over 100,000 colors in near complete darkness.
Researchers at Goethe University Frankfurt measured the propagation of light in a hydrogen molecule, achieving a new world record in short time measurement. The scientists tracked the ejection of electrons from the molecule using a unique technique, allowing them to determine the timing of photon interactions within zeptoseconds.
Topological photonics explores discrete states of light, similar to Fock states of electrons. The connection between the Maxwell and Schrodinger equations reveals new topological phases, including a Haldane model for valley Hall effect.
Researchers aim to understand how electrical stimulation affects glia and vasculature in the brain, with potential implications for treating neurological diseases. They'll use two-photon microscopy and optogenetics to investigate inner workings of the brain.
Researchers at Berkeley Lab have developed a precision photon source made from an atomically thin semiconducting material, enabling the generation of single, identical photons. This breakthrough could aid in developing secure and fast quantum communication networks.
Researchers designed a compact UV camera capable of recording photons in the ultraviolet range in real time, achieving an imaging speed of 0.5 trillion frames per second. The system uses compressed ultrafast photography to capture unparalleled resolution with just one click.
A team of scientists at ICFO has developed a graphene-based bolometer that can detect microwave photons with extremely high sensitivities and fast time responses. The device uses a microwave resonator to generate photons, which are then detected through the heating of graphene.
Researchers have developed a method to observe nonlinear x-ray processes in atoms, allowing for detailed insight into molecular motion. This new approach may help steer chemical reactions in desired directions.
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 team of scientists has developed a novel type of quantum emitter formed from spatially separated InGaN monolayer islands. The isolated islands exhibit high photostability and can be spectrally filtered to act as bright, fast single photon emitters at a wavelength of ~400 nm.
Researchers have developed a new type of solar cell that can reflect 99% of the energy it can't convert into electricity, allowing for more efficient use of waste heat from exhaust pipes and chimneys. This technology has the potential to make renewable energy storage cheaper by ten-fold compared to traditional battery-based systems.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have designed a silicon-based light source to generate single photons, a crucial component for quantum cryptography and communication. The prototype can produce 100,000 single photons per second and is stable even after several days of continuous operation.
Researchers have discovered a simple method for creating a curved photonic beam using a microparticle, which can be used for various applications such as microscopy and lithography. This breakthrough enables the creation of more flexible and versatile photonics devices.
Researchers at Stanford University have developed a system that can reconstruct three-dimensional hidden scenes based on the movement of individual particles of light. This technique complements other vision systems and is more focused on large-scale situations, such as navigating self-driving cars in fog or heavy rain.
Researchers at the University of Tokyo have developed a new tool to analyze molecules that is 100 times faster than previous methods. This new method, called time-stretch infrared spectroscopy, can achieve 80 million spectra per second.
Researchers have made breakthroughs in understanding dispersion's impact on entangled photon systems, allowing for more reliable communication networks. This discovery could enable faster data transmission rates and secure secret sharing.
Researchers trap and control light at the interface of atomically thin nanomaterials, leveraging topological effects to create predictable and controllable photonics. The study demonstrates on-and-off electric switching and dimensional hierarchy of the device's topology.
Researchers at Yokohama National University developed a new method to produce entangled photons compatible with quantum memories, allowing for long-distance quantum communication through optical fibers. This breakthrough could enable the creation of a quantum internet linking quantum computers.
Researchers develop a non-toxic Cs2Ag0.6Na0.4In0.85Bi0.15Cl6 double perovskite scintillator for high-performance X-ray imaging with low doses, enabling high-resolution images in medical and industrial applications.
Researchers successfully bound two negatively charged electron-like particles using photons, creating a novel form of matter called a Photon Bound Exciton. This discovery enables the creation of novel artificial atoms with designer electronic configurations.
Researchers at Tomsk Polytechnic University have developed a new method to significantly increase the operation range and stability of optical tweezers. This technology uses dielectric particles to form a photonic jet, which acts as a trap or tweezers, allowing for more precise control over micron-sized objects.
The 'Gamma Factory' initiative aims to develop a high-intensity gamma rays source using accelerated ion beams and laser beams. This will enable detailed investigations into atomic nuclei and facilitate breakthroughs in spectroscopy.
Researchers propose a new method for constructing higher-order topological insulators using ring resonators and synthetic dimensions, enabling dynamic control over system parameters. This approach allows for the creation of high-dimensional topological insulators with exotic properties.
The study confirms that the speed of light is constant in vacuum, as predicted by Einstein's general relativity theory. No energy-dependent time delay was detected in the arrival times of gamma rays from a high-energy gamma-ray burst, supporting GR. Strong constraints on the quantum gravity energy scale were also set.
Researchers at DGIST developed a novel dual-resonant method to maximize photon conversion in 2D materials. The method achieves a significant boost in signal intensity and frequency doubling, with potential applications in advanced photonic devices and cheaper diagnostic methods.
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.
Researchers at Trinity College Dublin have developed a novel device that enables controlled single photon emission from quantum dots, a crucial component in quantum computing and communications. This breakthrough allows for entangled states of pairs of quantum dots, paving the way for significant advancements in quantum technologies.
High-dimensional synthetic lattices emerge in photon-number space when excited by N indistinguishable photons, allowing for parallel quantum random walks with different numbers of steps on various graphs. This discovery enables the realization of an infinite number of lattices and graphs with distinct properties.
Researchers developed an approach to wirelessly power implantable devices via a skin-worn light-emitting patch, which transfers photons to a photovoltaic device integrated with the implant. The method was successfully tested in mice, demonstrating its efficacy.
Researchers identified a universal concept underlying efficient biological light-harvesting by tuning 'noisy' photosynthetic antennae networks to their environments. This approach enables optimal power conversion and minimizes fluctuations in energy output.
The US Army has made significant advancements in quantum networking research, which will play a crucial role in future battlefield operations. The researchers have developed a system that can send information quantum-mechanically between nodes without occupying the linking channel.
A team of scientists at Aalto University has successfully created a Bose-Einstein condensate that behaves as if it were one particle, but makes the elusive state of matter in just 100 femtoseconds. The breakthrough could lead to new areas of fundamental research and applications with these condensates.
Scientists at Penn State have fabricated a 'photonic topological insulator' that can mediate interaction between photons and form self-sustaining wave patterns called solitons. This innovation could lead to more efficient lasers, medical imaging, and other photonic technologies.
Scientists have successfully demonstrated the unique quantum characteristic of the 'Quantum Cheshire Cat' by exchanging grins between two photons without physical contact. By applying a perturbation to the system, they were able to obtain weak values that separated each photon's polarization.
Scientists at the University of Chicago have developed a new quantum communication technique that bypasses traditional channels, allowing for secure information transfer without photon loss. This breakthrough enables faster and more efficient communication systems, opening up new possibilities for future technologies.
Researchers have developed a quantum-inspired approach for OCT detection, allowing for high-quality imaging with power levels up to 1 million times lower than current standards. This breakthrough enables safer and more efficient OCT imaging for medical applications.
Physicists at TU Darmstadt have successfully stopped individual photons and preserved them for a short time, enabling the creation of controlled interactions between light and atoms. This breakthrough could lead to breakthroughs in nonlinear optics and simulation of solid materials through photon crystals.
Physicists have created a focusing component that converts light into electromagnetic waves, compressing it to 60% of the initial wavelength. This breakthrough allows for densely packing optical components in photonic and plasmonic devices, potentially bypassing fundamental limitations of traditional lenses.
Researchers at Goethe University Frankfurt have confirmed a 90-year-old theory by measuring the recoil of ejected electrons in helium and nitrogen molecules. They observed the molecular movement when light particles hit individual molecules, confirming the effect of radiation pressure with recoil.
Researchers at UC Santa Barbara developed a new approach to design LEDs that can extract and direct photons with high efficiency. By using metasurface concepts, they were able to confine electrons and holes in gallium nitride nanorods, allowing more light to escape the semiconductor structure.
Researchers at the University of Bristol have developed a novel technique to generate high-quality single photons, paving the way for large-scale quantum photonics. The breakthrough enables the creation of scalable quantum photonics devices, which can solve complex problems beyond current supercomputers.
Researchers successfully image atomic nuclei in three materials using a new microscopy type called ANXRI, which combines aberration-corrected STEM and EDS. The accuracy of ANXRI reaches 1 pm, allowing for adjustable individual imaged sizes of atomic nuclei.
Researchers at IST Austria have demonstrated a new detection technology called microwave quantum illumination that utilizes entangled microwave photons to detect objects in noisy thermal environments. The technology has potential applications for ultra-low power biomedical imaging and security scanners.
Researchers developed a quantum photonics prototype using hyperbolic metamaterials to achieve high-efficiency single-photon sources with broad spectral bandwidth. The tilted geometry suppresses light reflections, enabling faster photon extraction and paving the way for on-chip quantum networks.
Researchers have confirmed a method for developing photonic circuits with optical nonlinearities that can function at room temperature. This approach could lead to more efficient and powerful quantum computers, bypassing the need for extremely cold temperatures.
Researchers at the University of Arizona are using quantum entanglement to detect radio frequencies with unprecedented sensitivity and accuracy. By combining RF photonics sensing and quantum metrology, they've created a technology that can improve GPS systems, astronomy labs, and biomedical imaging capabilities.
The new camera detects single photons at unprecedented speeds, enabling fast acquisition of 3D images. It can acquire images at up to 24,000 frames per second, making it suitable for applications such as virtual reality and LiDAR systems.
Scientists observed a surprising phenomenon where electrons were sometimes ejected from nuclei in two-thirds of cases, and sometimes reflected back. The findings provide a new approach for testing quantum mechanical theories of Compton scattering.
Researchers at ETH Zurich have developed a high-repetition-rate laser source producing coherent soft x-rays spanning the entire 'water window', enabling new applications in chemistry and biology. The system, capable of 100 kHz repetition rates, demonstrates a significant improvement over existing sources.
Scientists at Argonne National Laboratory develop a novel approach to ultrafast imaging of single sucrose nanoclusters using XFEL pulses, finding that shorter pulse lengths are better for optimal signal degradation. The study's computer modeling will help optimize future experiments.
Researchers at Caltech have successfully created a tiny optical cavity that can store and transmit quantum information, a crucial step towards building a quantum internet. The cavity allows scientists to efficiently collect and detect photons emitted by rare-earth ytterbium ions, enabling the creation of a quantum network.
A team of researchers has developed a new method for generating quantum-entangled photons in the previously inaccessible spectral range of 2.1 micrometers. This breakthrough can enhance the security of satellite-based communications by making end-to-end encryption possible on sunny and cloudy days.
Researchers at Institute for Basic Science (IBS) in South Korea have reported the first high-sensitivity results of their axion dark matter search. They used a custom-made CAPP-8TB haloscope to detect potential axions, finding no evidence within a specific mass range.
Harvard and MIT researchers have developed a prototype quantum node that can correct for signal loss, paving the way for a practical quantum internet. The breakthrough enables secure communication over long distances using entangled particles, making it impossible for eavesdroppers to intercept messages.
Researchers in the Keller group at ETH Zurich have measured for the first time how single photons alter an unbound electron's dynamics. They found a delay of up to 12 attoseconds between s- and d-electrons, depending on their angular momentum. This subtle signature reflects underlying quantum-mechanical effects.
Researchers from ITMO University have predicted a novel type of topological quantum state in two-photon systems. A new experimental method using classical electric circuits has been developed to test these predictions, offering valuable information for the engineering of optical chips and quantum computers.
Researchers use SLAC's X-ray laser to film iodine molecules reacting to two photons of light, capturing detailed snapshots of atomic vibrations and unexpected phenomena. The technique yields new insights into molecular behavior and fills a gap in previous methods.
Physicist Esther Wertz receives NSF CAREER award to investigate nanometer-scale metal structures controlling light at the quantum limit. Her work aims to create a single photon transistor by manipulating quantum states without destroying superposition.