Articles tagged with Light Matter Interactions
Researchers developed a continuum model to describe the terahertz dielectric response of glasses, revealing the role of transverse shear dynamics in absorption. The model accurately reproduced experimentally measured data, providing a new framework for designing glass materials with low permittivity and low dielectric loss.
Researchers developed an ultrafast infrared near-field optical microscopy technique that enables frequency-selective imaging of phonon polariton without sacrificing ultrafast time resolution. The technique reveals ultrafast optical modulation of phonon polariton in van der Waals heterostructures.
A German research team has successfully generated stable laser pulses in the femtosecond range, allowing for the manipulation of individual electrons. The team's achievement enables the stability of the electric field oscillations across a wide range of timescales, from microseconds to hours.
Researchers developed a wearable optoelectronic clip that turns exhaled breath into a clear optical switching signal, enabling touch-free interaction and respiratory health monitoring. The device showed high accuracy in multi-user tests, suggesting its potential for practical applications.
Researchers at Max Planck Institute develop technique to interrogate molecules on surfaces with spectroscopic precision, reaching the ultimate quantum limit. This breakthrough enables study of molecule-surface interactions and molecular quantum technologies.
Carbon quantum dots can be designed to absorb specific wavelengths using atomic defects, enabling targeted optical functions and applications. The study provides a predictive framework for designing defect-encoded CQDs with controlled excitonic behavior.
A German-Japanese research team applies quantum geometry to non-Hermitian photonic systems, introducing a new degree of complexity. They develop a method to measure the quantum metric directly, enabling the creation of programmable artificial potentials for light and new design possibilities for photonic systems.
Researchers at the University of East Anglia have discovered that light can be programmed using its natural geometry, allowing for the creation of structured light with unique properties. This breakthrough has far-reaching implications for fields such as medicine, data transmission, and quantum technologies.
Researchers at Politecnico di Milano and CNR have developed a new ultrafast computer technology controlled by light, potentially hundreds of times faster than traditional electronics. The technology manipulates the state of electrons in matter using oscillating light, enabling operations at rates above 10 terahertz.
Scientists at Columbia University have experimentally confirmed that quantum fluctuations in a 2D material can alter the properties of a nearby crystal. The team placed a nanometer-sized flake of hexagonal Boron nitride on top of a superconducting material, where the vibrations matched and interacted, suppressing superconductivity.
Giant superatoms combine two quantum-mechanical constructs to suppress decoherence and create entanglement, opening opportunities for scalable and reliable quantum systems. This breakthrough enables quantum information to be protected, controlled, and distributed in new ways.
Scientists at University of Basel and ETH in Zurich successfully changed the polarity of a ferromagnet using a laser beam. The breakthrough method could be used to create adaptive electronic circuits that can be controlled by light.
A nanostructure composed of silver and an atomically thin semiconductor layer can be turned into an ultrafast switching mirror device, displaying properties of both light and matter. This discovery could lead to dramatically increased information transmission rates in optical data processing.
A team of researchers from OIST and Stanford University has demonstrated a powerful new alternative approach to Floquet engineering by showing that excitons can produce Floquet effects more efficiently than light. This breakthrough enables the creation of novel quantum devices and materials with significantly lower intensities.
A University of Houston chemist has received a nearly $2M grant to develop molecular blueprints for controlling how molecules change shape and reactivity upon absorbing light. This research could lead to breakthroughs in storing and using chemical energy, as well as designing materials that change when exposed to light.
Kono recognized for his contributions to optical physics, light-condensed matter interactions and photonic applications of nanosystems. His research explores how light interacts with materials at the nanoscale, potentially leading to new technologies in electronics and quantum communication.
Researchers at Rice University have discovered that light can trigger a physical shift in atomic lattice, creating tunable behavior and properties in transition metal dichalcogenide (TMD) materials. This effect could advance technologies using light instead of electricity, such as faster computer chips and ultrasensitive sensors.
By studying how atoms interact with each other and with light, researchers have found that direct atom–atom interactions can strengthen collective bursts of light known as superradiance. This discovery could lead to breakthroughs in quantum technologies such as quantum batteries and precision sensors.
Researchers at Columbia University have identified the rules for creating perfect polaritons, which are hybrid quasiparticles combining light and matter. The guiding rules include large optical absorption, low disorder, and inherent exciton delocalization, enabling polaritons to preserve coherence despite strong interactions and disorder.
Researchers discovered how individual MXene flakes behave at the single-flake level, revealing changes in conductivity and optical response. The new spectroscopic micro-ellipsometry technique allowed for non-destructive measurements of individual MXene flakes, providing fundamental knowledge needed to design smarter technologies.
The team developed a new method to produce ultrafast squeezed light, which can fluctuate between intensity and phase-squeezing by adjusting the position of fused silica relative to the split beam. This breakthrough could lead to more secure communication and advance fields like quantum sensing, chemistry, and biology.
A team of researchers from the University of Melbourne and Hanyang University has discovered a new method for creating spiral whirlpools of light through Van der Waals materials. This breakthrough could lead to more efficient and secure optical communication systems, including Australia's NBN.
Researchers develop new method to detect subtle magnetic signals in common metals like copper, gold, and aluminum, using a laser and large-amplitude modulation of the external magnetic field. This breakthrough could lead to advances in semiconductor industry, spintronic devices, and quantum systems.
The latest issue of Optica Quantum features research on cryogenic photonic links for superconducting qubits, spatio-spectral quantum state estimation of photon pairs from optical fiber, and quantum optical reservoir computing powered by boson sampling. These studies demonstrate breakthroughs in measuring and optimizing quantum states, ...
Researchers at KAIST develop a 'pedestrian-friendly smart window' technology that reduces heating and cooling energy consumption in urban buildings while resolving light pollution issues. The RECM system operates in three modes, allowing for real-time adjustment of light and heat transmission.
Researchers from Oxford University and the Instituto Superior Técnico recreated the quantum vacuum effect, a state previously thought to be empty but predicted to contain virtual electron-positron pairs. The simulation reveals new insights into how intense laser beams alter the quantum vacuum, enabling future high-energy experiments.
Scientists from Harvard University and PSI have developed a method to stabilize transient quantum states in materials using tailored optical excitation. This breakthrough enables the study of emergent properties of quantum materials, paving the way for transformative technologies such as lossless electronics and high-capacity batteries.
Researchers plan to build a high-energy η meson factory in China to study rare decay channels and explore portal particles bridging the Standard Model and hidden sector. The facility aims to probe new mechanisms of CP violation and precision test strong interaction theory.
Researchers at Rice University developed a new machine learning algorithm that excels in interpreting light signatures of molecules, materials and disease biomarkers. The tool can detect subtle signals in optical spectroscopy, enabling faster medical diagnoses and sample analysis.
The study provides a new look at the galactic region surrounding our solar system, revealing a roughly uniform background Lyman alpha sky brightness. The findings suggest hot interstellar gas bubbles may be regions of enhanced hydrogen gas emissions at a wavelength called Lyman alpha.
Researchers at HSE University discovered a way to control the color and brightness of glow emitted by rare earth elements. By adjusting the chemical environment, they altered the energy gap between electron levels, changing the luminescence spectrum.
Researchers create 3D photonic-crystal cavity to study ultrastrong coupling between light and matter, enabling faster and more energy-efficient quantum computing and communication technologies. The study paves the way for hyperefficient quantum processors, high-speed data transmission and next-generation sensors.
Researchers at King's College London and Harvard University develop a detector that can identify axions, leading potential candidates for dark matter. The Axion Quasiparticle (AQ) technology has the potential to discover dark matter in five years with further development.
Researchers have designed an optical device that functions as an optical black hole or white hole, behaving like a cosmic object that either swallows or repels light. This device relies on coherent perfect absorption of light waves and offers new possibilities for manipulating light-matter interactions.
A new microscopy technique, SIMIP, combines structured illumination with mid-infrared photothermal detection to achieve high-speed chemical imaging with superior resolution. The method outperforms conventional methods in terms of spatial resolution and chemical contrast.
The team designed a superconducting device capable of producing ultrafast, unipolar magnetic field steps, which can switch magnetic samples between stable states. The breakthrough could drive advances in both fundamental science and technology, enabling applications in next-generation magnetic memory.
A new study achieves substantial wavelength tuning at ambient conditions, surpassing previous reports by an order-of-magnitude. The breakthrough enables the development of programmable light sources with potential applications in secure quantum communication and photonic-based computing.
A study by Philip Kurian and colleagues reveals a revised upper bound on carbon-based life's computational capacity, connecting it to the universe's information-processing limit. The discovery of quantum superradiance in cytoskeletal filaments enables eukaryotic organisms to process information through tryptophan networks.
Researchers from ETH Zurich have developed a tiny plasmonic modulator that can transmit data with frequencies over a trillion oscillations per second, breaking previous records. The new modulator can be used for various applications, including high-performance computing and measurement technology.
Researchers at Indian Institute of Science use polarized light to measure glucose concentration with near clinical accuracy in water, serum solutions and tissue samples. The technique exploits the interaction between glucose molecules and polarized light to create unique sound wave patterns.
Scientists at Helmholtz-Zentrum Dresden-Rossendorf have developed a new method to determine the magnetic orientation of a material using terahertz light pulses. This technique enables reading out magnetic structures within picoseconds, opening up possibilities for ultrafast data storage and processing.
Researchers have developed a photonic-chip-based amplifier that achieves ultra-broadband signal amplification in an unprecedentedly compact form. The new amplifier uses optical nonlinearity to boost weak signals while keeping noise low, making it highly adaptable to various applications beyond telecommunications.
A German-Italian team has discovered a way to simplify the experimental implementation of two-dimensional electronic spectroscopy, allowing for real-time study of electron motion in solids. By adding an optical component to Cerullo's interferometer, researchers were able to control laser pulses more precisely, enabling the investigatio...
Researchers have discovered that quantum materials can be used to sense the biological electrical activity of living cells with high speed and resolution. The technology uses light to track changes in the material's photoluminescence, mapping the electrical activity of heart muscle cells in real time.
A new study from the University of Eastern Finland investigates the behavior of photons at boundaries where material properties change rapidly over time. This research uncovers remarkable quantum optical phenomena that may enhance quantum technology and pave the way for an exciting emerging field: four-dimensional quantum optics.
Researchers have made a significant leap forward in Brillouin microscopy, providing a 1,000-fold improvement in speed and throughput. The new technology enables full-field imaging with minimal light intensity, opening up new possibilities for life scientists.
For the first time, scientists have measured the quantum state of electrons ejected from atoms after absorbing high-energy light pulses. This technique provides a new way to study the interaction between light and matter, with potential applications in various fields of research.
Researchers at Lancaster University have successfully demonstrated negative refraction using atomic arrays, eliminating the need for metamaterials. This achievement paves the way for novel technologies based on negative refraction, including perfect lenses and cloaking devices.
A team at Osaka University discovered that temperature-controlled conductive networks in vanadium dioxide enhance the sensitivity of silicon devices to terahertz light. The researchers created 'living' microelectrodes from VO2, which selectively enhanced the response of silicon photodetectors.
Researchers at the Max Planck Institute induced chirality in a non-chiral crystal using terahertz pulses. This discovery opens up new avenues for controlling matter on an atomic level, potentially leading to unique functionalities in ultrafast memory devices and optoelectronic platforms.
A team of researchers from the University of Ottawa has developed innovative methods to enhance frequency conversion of terahertz (THz) waves in graphene-based structures, unlocking new potential for faster, more efficient technologies in wireless communication and signal processing. These advancements hold great promise for wireless c...
Researchers demonstrate that light can interact with a single-atom layer of thallium-lead alloys, restricting spin-polarized current flow to one direction. This phenomenon enables functionality beyond ordinary diodes and paves the way for ultra-fine two-dimensional spintronic devices.
Researchers from NTU Singapore have developed a new crystal structure that shows naturally existing particles can behave like axions, promising to detect dark matter. The findings could lay the groundwork for understanding cosmic phenomena and uncovering the universe's greatest mysteries.
Researchers propose a novel strategy for highly controllable micro-nano fabrication using focal volume optics in transparent solids. The approach enables the creation of composite structures with finer structures and tunable properties, opening up new avenues for photonics and nanophotonics applications.
A new experimental technique has developed a molecular flashlight to monitor molecular changes in the brain caused by cancer and other neurological pathologies. The technique uses vibrational spectroscopy to illuminate nerve tissue, allowing for the analysis of molecular changes caused by tumours or injuries.
A team of international researchers successfully controlled the quantum states of matter at ultrafast time scales and its chemical properties with extreme precision using light in the extreme ultraviolet. The technique was demonstrated on helium atoms, enabling the enhancement of selected quantum processes while suppressing others.
The study creates ultra-stable thin-film polariton filters with exceptional angular stability, transmitting up to 98% of light, even at extreme viewing angles. This technology has enormous scientific and economic potential for applications in display technology, sensor technologies, biophotonics, and more.
A commonly used mathematical approach to describe fluorescence evolution in solids cannot be applied to liquids, where molecules are free to move. This can lead to erroneous interpretations of experimental data and wrong conclusions.
Rice engineers create a new thermal emitter that achieves efficiencies of over 60% despite practical design constraints, opening possibilities for more sustainable industrial processes and renewable energy growth. The technology could inform the development of grid-scale alternative storage solutions and power space applications.
Researchers at the University of Birmingham have developed a new theory that explains how light and matter interact at the quantum level. The theory enables scientists to precisely define the shape of a single photon for the first time.