Researchers at TU Wien have demonstrated that special tricks can be used to increase accuracy exponentially. By using two different time scales, a clock can measure time more accurately while minimizing the impact of statistical noise.
Researchers have developed a new laser device smaller than a penny that can conduct extremely fast and accurate measurements by precisely changing its color across a broad spectrum of light. The laser has applications ranging from guiding autonomous vehicles to detecting gravitational waves, a delicate experiment to observe our universe.
Professor Chao Xiang has been honoured with the 2025 Croucher Tak Wah Mak Innovation Award for his pioneering research in silicon photonics. His work on integrating lasers for advanced photonic integrated circuits shows significant improvements in sensor accuracy, communication system bandwidth, and energy efficiency.
A new material platform is introduced to overcome limitations of conventional solid-state acousto-optic phase modulators. The polydimethylsiloxane (PDMS) acousto-optic phase modulator enables fourfold increase in phase modulation index and sub-MHz spectral resolution.
Researchers at University of Liège have developed a method for rapidly creating NOON states with ultra-cold atoms, accelerating the process by a factor of 10,000 while maintaining high fidelity. This breakthrough opens up prospects in quantum metrology and quantum information technologies.
A team of physicists at Rice University has made a breakthrough in understanding the behavior of strange metals by leveraging quantum information theory. Electron entanglement peaks at a critical transition point, shedding new light on the exotic properties of these materials.
Researchers develop a new approach combining Phase Measuring Deflectometry and Shape from Polarization to accurately image specular surfaces without prior knowledge or assumptions. The single-shot method enables motion-robust measurements, pushing the limits for next-generation 3D sensors.
Researchers have acquired direct evidence of rare, pulsing pear-shaped structures in the nucleus of Gadolinium-150, a long-lived radioactive isotope. The study provides definitive proof of a strong collective 'octupole excitation' and opens a new window into the quantum world.
Researchers developed single-shot super-resolved fringe projection profilometry (SSSR-FPP) using deep learning to achieve 100,000 frames-per-second 3D imaging. This breakthrough offers new insights into ultra-fast dynamic processes and could revolutionize fields like mechanics and biology.
The USTC team developed a 105-qubit superconducting quantum processor that achieves a coherence time of 72 μs and outperforms the world's most powerful supercomputer by 15 orders of magnitude. This milestone marks a significant upgrade from its predecessor, Zuchongzhi-2, and demonstrates a record speedup in circuit sampling.
A team of scientists developed a general polarization metrology method capable of detecting SoP on any HOPS, featuring miniaturized size and simple detection process. The metasurface photonics polarization clock enables fully characterization of beams via a single measurement.
The first draft of Italy's National Strategy for Quantum Technologies is available online for public consultation. The strategy aims to strengthen the country's position in quantum technologies, with contributions from research experts and stakeholders.
Texas A&M University professors Drs. Vanderlei Bagnato, Rodney Bowersox and Don Lipkin have been elected to the National Academy of Engineering (NAE) Class of 2025 for their outstanding contributions to engineering practice, research and education. The NAE recognition underscores the exceptional talent within the faculty.
A team of international researchers has developed an innovative approach to detect dark matter by analysing data from ultra-stable lasers connected by fibre optic cables and atomic clocks aboard GPS satellites. They identified subtle effects of oscillating dark matter fields, which were invisible in previous searches.
A newly developed ion crystal clock has demonstrated record accuracy, reaching an uncertainty close to the 18th decimal place. This achievement marks a significant step towards redefining the second in the International System of Units (SI), as optical clocks are now 100 times more accurate than current caesium clocks.
Researchers report first experimental observation of Nonlinear Raman-Nath diffraction in a submicron-thick periodically poled lithium niobate thin film. The study investigates the impact of pump wavelength, sample poling period, and incident angle on diffracted beam properties.
Researchers explore the application of orbital angular momentum in optical metrology, enabling new paradigms in measurement such as 3D particle position tracking and rotational movement detection. The field also holds promise for quantum metrology and real-time analysis of complex media with machine learning and AI.
A team of researchers found that attosecond angular streaking measurements are closely related to the statistical distribution of momentum/energy of electron wave packets generated by quantum tunneling. The Coulomb focusing effect disrupts this correspondence, revealing new insights into sub-barrier tunneling dynamics.
Scientists have successfully created a Schrödinger-cat state with a minute-scale lifetime, significantly enhancing quantum metrology measurement sensitivity. The long-lived state exhibits enhanced magnetic field sensitivity and is immune to intensity noise and spatial variations of the optical lattice.
Researchers introduce a novel approach to multiplexed fringe projection profilometry using deep learning and frequency-domain multiplexing. This method achieves high-resolution and high-speed 3D imaging at near-one-order of magnitude-higher frame rates with conventional low-speed cameras.
Researchers have developed a new ultrafast laser platform that generates ultra-broadband ultraviolet (UV) frequency combs with an unprecedented one million comb lines. This achievement provides exceptional spectral resolution and could enhance high-resolution atomic and molecular spectroscopy. The new approach also produces extremely a...
A NRL multi-disciplinary team developed a nonvolatile and reversible procedure to control single photon emission purity in monolayer tungsten disulfide by integrating it with a ferroelectric material. This novel heterostructure introduces a new paradigm for control of quantum emitters.
Aston University researcher has developed a new technique harnessing Orbital Angular Momentum (OAM) light to improve imaging and data transmission through skin and biological tissues. The OAM-based approach shows unmatched sensitivity and accuracy, paving the way for non-invasive medical diagnostics and imaging.
Professor Patrick E. Hopkins of UVA School of Engineering and Applied Science has secured a $289,830 Small Business Innovation Research grant to develop a precise tool for measuring heat movement in microchips. The technology will enhance cooling and prevent overheating in next-generation devices.
Scientists have successfully captured 3D images of magnetic skyrmions, a nanoscale object that could revolutionize microelectronic storage devices and quantum computing. The breakthrough provides a foundation for nanoscale metrology and opens opportunities for the development of topological spintronic devices.
Tyrus Berry aims to create a robust sensor that can measure multiple parameters simultaneously with high accuracy. The project will provide mathematical tools for tracking physical parameter drift and verified uncertainty estimates.
New research reveals indoor vertical gardens consume excessive energy, particularly from artificial lighting and ventilation systems. Improving design and energy management can significantly reduce consumption.
A recent study has lifted the veil of topological censorship by revealing a meandering conduction channel that can carry quantized bulk current. The researchers identified mechanisms that allow for tuning between qualitatively different microscopic implementations, challenging traditional theories.
Researchers have demonstrated octave-spanning Kerr soliton frequency combs on thin-film lithium niobate, enabling ultrafast spectroscopy and laser frequency synchronization. The development of reliable fabrication guidelines suppresses Raman lasing, unlocking the potential for monolithic and compact comb-driven photonic systems.
Researchers from Okayama University successfully controlled the population of the thorium-229 isomeric state using X-rays, a crucial step towards building a compact and portable nuclear clock. This achievement demonstrates the potential for nuclear clocks to advance fundamental physics research and other applications such as GPS systems.
Researchers have successfully achieved spin squeezing in a more accessible way, enabling precise measurements with quantum-enhanced metrology. This breakthrough may lead to new portable sensors for biomedical imaging and atomic clocks.
Scientists have created an ultra-thin light source emitting pairs of polarization-entangled photons, enabling ultra-secure communication and powerful computation. The breakthrough material, 3R-WS2, facilitates the search for superior quantum materials, bringing quantum technology closer to reality.
A study in São Paulo state found that peer-to-peer certified organic farms had an average of 58.8 organic items, while conventionally certified farms had only 22.2. This greater diversity includes native and medicinal species, contributing to a more sustainable and biodiverse organic farming system.
The BASE collaboration has developed a trap that can cool individual antiprotons much more rapidly than in the past, allowing for precise measurements of their magnetic moment and spin. This breakthrough enables researchers to identify possible matter-antimatter asymmetries and improve the accuracy of measurements by a factor of 1000.
Researchers at Helmholtz-Zentrum Berlin have successfully generated coherent, high-power light using ultrafast electrons in storage rings. By reducing the electron bunch length below the wavelength, they created a source with outputs of several kilowatts.
Scientists have successfully created an optical analog of the Kármán vortex street (KVS), a classical flow pattern of swirling vortices. The optical KVS pulse exhibits fascinating parallels with fluid transport, allowing for potential applications in metrology, telecommunications, and LiDAR.
Researchers demonstrate a way to describe spin-boson systems and efficiently configure quantum devices in a desired state. Non-Gaussian states are used to retain powerful mathematical machinery while describing diverse quantum states.
Researchers at the University of Rochester developed a new microcomb laser design that provides low power efficiency, high tunability, and easy operation. The simplified approach enables direct control over the comb with a single switch, opening up potential applications in telecommunications systems, LiDAR for autonomous vehicles.
Researchers have introduced a new form of quantum entanglement in the frequency domain, enabling double resolution in two-photon interference. This advancement sets the stage for future applications in quantum information processing and technologies.
Researchers created an 'optical conveyor belt' to control polariton energy landscape, achieving non-reciprocity and topological phase of matter. This technology has potential applications in quantum metrology, quantum information and opto-electronic devices.
Physicists have achieved a breakthrough by exciting thorium atomic nuclei with lasers for the first time, enabling precise tracking of their return to original energy states. This discovery has far-reaching implications for precision measurement techniques, including nuclear clocks and fundamental questions in physics.
Scientists have introduced a groundbreaking form of quantum entanglement, enabling double resolution in two-photon interference. This innovation uses a frequency beam splitter to alter individual photons' frequencies with high success rates.
A team of researchers from the Chinese Academy of Sciences has successfully developed a high-power, narrow-linewidth solid-state deep ultraviolet laser at 193 nm using LBO crystals. The generated DUV laser exhibits an average power of 60 mW and a linewidth of approximately 640 MHz, setting new benchmarks in efficiency values.
Researchers aim to create a nuclear clock using thorium isotopes, which could increase measurement accuracy by a factor of 3. The project uses light with orbital angular momentum to excite the nucleus, emitting photons that can be detected. This technology has the potential to answer fundamental questions in physics and astronomy.
Scientists at Shanghai Institute of Microsystem and Information Technology enhance the photon-number-resolving capability of single-photon detectors by widening superconducting strips. This results in better dynamic range and fidelity, enabling true-photon-number resolution up to 10.
Researchers at EPFL and Max Planck Institute have successfully bridged the gap between light and electrons using a transmission electron microscope. They achieved this by generating dissipative Kerr solitons that interact with free electrons, allowing for ultrafast modulation of electron beams.
The Korea Research Institute of Standards and Science (KRISS) has developed the world's first CRM capable of accurately measuring nutritional and harmful elements in coffee beans. The new CRM enables accurate measurement of five nutrients and three toxic elements, meeting domestic and European regulations.
Researchers at EPFL's Photonic Systems Laboratory develop a hybrid device that significantly improves existing laser technology by enhancing coherence and emitting visible light. This innovation has implications for telecommunications, metrology, and precision applications.
Scientists at ETH Zurich develop a novel method to measure seismic tremors using fibre-optic networks' active noise suppression systems. The technique enables accurate earthquake measurements even on the ocean floor and in regions with limited resources.
A new method developed by Caltech's Alireza Marandi enables the creation of ultrafast mode-locked lasers on photonic chips, opening up opportunities for compact and affordable ultrafast photonic technologies. The breakthrough could lead to significant advancements in fields like frequency metrology and precision sensing.
Researchers introduced a cost-effective solution to correct tilt and curvature errors in two-photon polymerization 3D printing. The method uses Fourier scatterometry, which offers lower uncertainties than traditional methods, resulting in improved image quality and precision.
Researchers at the University of Cambridge have shown that simulating models of hypothetical time travel can solve experimental problems in quantum metrology. By manipulating entanglement, they can retroactively change past actions to improve outcomes in the present. The simulation has a 75% chance of failure but provides valuable insi...
Researchers review recent progress in hybrid integration of 2D materials for integrated optics platforms, highlighting key steps and challenges. Highly nonlinear materials like graphene and TMDs show promising results with increased effective nonlinear performance.
Researchers have created chip-based optical frequency combs using dissipative Kerr solitons, increasing output power for applications like atomic clocks. The advancement paves the way for highly portable precision metrology devices.
Researchers have developed a novel approach to generate highly directional single photons using a quantum emitter in a one-dimensional waveguide. This design improves extraction efficiency and reduces emission time uncertainty by exploiting the Purcell effect, offering a promising solution for quantum technologies.
A novel coupling mechanism involving leaky mode has been uncovered, enabling zero crosstalk between closely spaced waveguides. This discovery drastically increases the coupling length of transverse-magnetic (TM) mode, expanding the potential for dense photonic integration.
Photonic snake states have been discovered, enabling two-dimensional optical rules with unprecedented versatility. This breakthrough enables the development of broadband, reconfigurable devices with real-time frequency comb generation.
Researchers have implemented Orbital Angular Momentum (OAM) as an independent information carrier for optical holography, leading to OAM multiplexed holography. The new design approach, MHC-OAM, uses spatial light modulators to achieve multiramp helical conical beams with different parameters serving as information encryption or decryp...
A research team from Taiwan has found a way to massively speed up aerial image simulations using wavelength scaling and fast Fourier transformation. The new algorithm improves computation speed by 4000-5000 times while maintaining only a slight intensity deviation.
A new microcomb device developed by researchers at the University of Rochester offers a promising approach to generating stable microwave signals. The device's high-speed tunability enables applications in wireless communication, imaging, atomic clocks, and more.