Researchers have demonstrated that non-circular VCSEL cavity designs can fundamentally improve performance by redefining boundary conditions. The pentagonal VCSEL showed over twice the power density of traditional circular VCSELs, while the mushroom-shaped VCSEL offered high power and low spatial coherence.
UCLA researchers create optical processor that performs massive parallel computation of nonlinear functions, executed rapidly and simultaneously at extreme spatial density. The study demonstrates the use of diffractive optical processors to approximate arbitrary sets of bandlimited nonlinear functions.
Researchers develop Controllable Spiral Magnetorheological Finishing (CSMRF) to eliminate mid-spatial-frequency ripple errors in sub-aperture polishing. This method integrates adaptive path spacing and spatially varying tool influence function, achieving effective control over targeted error distributions.
A research team has achieved a major breakthrough in non-Hermitian photonics by realizing the transition from bound states in continuum (BICs) to exceptional points (EPs) in metasurfaces. This discovery verifies core theory and provides a new perspective on unique physical properties of non-Hermitian systems.
Scientists create a new type of spatiotemporal vortex burst with time-dependent photonic characteristics, enabling precise control of ultrashort pulses in spatial and temporal dimensions. This innovation advances beyond conventional methods and opens new avenues for applications in light–matter interactions, spectroscopy, and nonlinear...
Researchers developed ultra-low voltage optoelectronic polymer memristors to address high power consumption and complex integration in edge computing. The devices achieved a fingerprint recognition accuracy of 97.15% in a reservoir computing framework.
Researchers developed a laser-emission vibrational microscopy technique for rapid screening of hyperlipidemia, measuring viscosity of microdroplets in over 5,400 droplets in 90 minutes. The approach enables high-throughput analysis of biological fluids with promise for mechanical biomarker discovery and low-cost clinical diagnostics.
Researchers developed a novel fluorotellurite glass, TBAY, with high nonlinear efficiency, allowing for miniaturization of mid-infrared laser systems. The new fiber generated tunable Raman soliton and dispersive waves beyond 4 μm in centimeter-long lengths.
A team of scientists proposed and demonstrated a coherent detector to efficiently detect the non-separability of vectorial structured light. The detector enables single-shot detecting the non-separability with low spatial complexity. Experimental results indicate high efficiency, low complexity, and stability.
A new chip architecture has successfully overcome major limitations of photonic neural networks, achieving record-breaking input sizes and robust performance with partially coherent light sources. The device demonstrated accuracies of 94% and 96% in handwritten digit and fashion image classification tasks.
Researchers successfully generate even and odd terahertz frequencies using topological insulator-based van der Waals metamaterials, confirming long-standing theories and opening doors to new applications. This breakthrough enables the development of compact terahertz sources, sensors, and ultrafast optoelectronic devices.
A team of researchers has created a novel comb-like structure for on-chip detection, achieving an unprecedented detection efficiency of 99.73%. The hybrid integration strategy allows for scalability in quantum photonic chip applications.
Researchers developed a 2x2 on-chip metasurface network on lithium niobate photonics to achieve high-speed, dynamically tunable light field control and large-capacity information processing. The design enables four-channel multiplexing for illumination direction and polarization control.
Researchers developed a strong-field laser passivation strategy to create super-corrosion-resistant stainless steels. The technique forms a hybrid Fe3O4/Fe2O3/Cr2O3 passivation layer with unique micro/nanostructures, greatly suppressing pitting corrosion and inhibiting metal surface exposure.
Scientists have reported an ultra-compact chaos-assisted computational spectrometer that overcomes the trade-off between physical size, resolution, and operational bandwidth. The device achieves a broad operational bandwidth of 100 nm with high spectral resolution of 10 pm.
A team of scientists uses weak-disturbance and high spatial-resolved imaging ability of PEEM to demonstrate near-field imaging and characterization of ultra-confined optical near fields in nanoslits. The technique identifies fabrication defects that are imperceptible to other means.
A new fabrication method using photolithography template-assisted processing (PTA) enables high-resolution full-color Micro-QLED devices with pixel sizes ranging from 2 to 20 μm. The technology demonstrates outstanding performance with 1184 ppi resolution and brightness over 10,000 cd/m².
A new photonic chip called Gezhi achieves record-breaking speeds of 25 million images per second and consumes ultra-low light levels. This technology holds immense potential for large-scale expansion and high-performance applications in AI, autonomous driving, smart healthcare, machine vision, and language models.
Recent advances in perovskite thin-film patterning techniques are crucial for high-performance optoelectronic devices. The research team introduces dimensional engineering, correlating material performance and structural dimensionality across different scales.
Researchers developed efficient deep-blue light-emitting diodes (PeLEDs) using colloidal CsPbBr3 nanoplatelets, achieving record-breaking performance with a maximum external quantum efficiency of 6.81%. The devices also exhibit stable deep-blue emission and precise color coordinates that fully satisfy the stringent Rec.2020 requirement.
Artificial materials with subwavelength structures enable shrinking optical setups onto tiny chips. Meta-surfaces manipulate fundamental light properties, boosting photon pair generation efficiency. This allows for on-chip quantum light sources, single-photon detection, and ultra-precise quantum metrology sensors.
The research team created a directional radiative cooling thermal protective window by integrating a visible transparent broadband directional emitter and Low-E film with commercial PC windows. The window features high visible transparency and low emissivity, making it effective at reflecting thermal radiation and preventing heat absor...
Researchers have introduced a new theoretical framework that enables the confinement of light to extreme scales in lossless dielectric materials. Narwhal-shaped wavefunctions, discovered through singular dispersion equation, trap light at sub-diffraction volumes.
Researchers review approaches to overcome THz endoscopy limitations in medical diagnostics, discussing advantages and drawbacks of notable systems. Notable examples highlight the potential of THz endoscopy in medical applications, despite challenges related to commercial endoscope availability.
Researchers have created a new method for generating bright squeezed light in the kilohertz frequency band with milliwatt optical power. By integrating passive and active noise suppression techniques, they reduced technical noise by 9 dB below shot noise limit, extending feedback bandwidth to MHz range.
Scientists develop a method for multi-dimensional holographic multiplexing and encryption using full-modulation dielectric geometric-phase metasurfaces. This enables accurate high-capacity information integration with low crosstalk and ideal energy uniformity.
Scientists achieve major milestone in light-based technologies using exotic quantum materials to unlock previously inaccessible regions of the electromagnetic spectrum. They successfully generate even and odd THz frequencies, enabling compact terahertz sources, sensors, and ultrafast optoelectronic devices.
Researchers developed luminescent ceramic-converted laser diodes with superior thermal stability, high-power endurance, and improved luminescence efficiency. The resultant ceramics achieve unprecedented efficiency and enable record output power under blue laser excitation.
A team of researchers has revealed the interplay between skin modes and exceptional points in non-Hermitian systems. By coupling two systems, they demonstrated that multiple pairs of exceptional points can emerge, leading to a phase transition in skin modes and suppressing the coupled skin effect.
Scientists have made the first-ever direct measurement of quantum uncertainty dynamics with attosecond resolution, revealing it's a dynamic and tunable property. The discovery enables novel petahertz-scale secure quantum communication protocols.
Researchers develop new optical method to engineer and control topological solitons, such as skyrmions and antiskyrmions, within ferroelectric materials. The technique harnesses the Poincaré sphere concept to create and dynamically manipulate these nano-scale topological entities at ultrafast speeds.
A new imaging method, HyFMRI, combines fluorescence and MRI to measure neuronal and astrocytic activity while mapping hemodynamic responses. This allows for direct measurement of local neural activity, crucial for functional neuroscience research.
Researchers developed a novel method to regulate phosphorescent carbon dots by modulating the self-assembly of cyclodextrin through ultrasonic means. The resulting materials exhibit long-lived excited states, enhancing signal-to-noise ratio and tissue penetration for non-invasive imaging. Ultrasonic responsiveness is positively correla...
A team of scientists developed a multispectral dynamic regulator based on vanadium dioxide (VO2) for tunable control in visible and mid-infrared bands. The device achieves dynamic color-thermal camouflage, mitigating interference from additional heat sources and enhancing performance across diverse environments.
A new fast-hyperspectral imaging remote sensing technique enables precise imaging and quantification of nitrogen dioxide (NO₂) and sulfur dioxide (SO₂) emissions from marine vessels. The system achieves accurate plume categorization, outline identification, and detailed observation of trace gas distribution.
Researchers introduce a new theoretical framework that accounts for higher-order spatial harmonics in gradient metasurfaces, enabling precise control over inter-unit coupling. This allows for unprecedented harmonic-selective control in devices, with applications in ultra-dense beamforming and reconfigurable multichannel sensing.
Researchers create subwavelength dimer-on-film nanocavities to excite magnetic dipole resonance, enabling Lorentz-force-driven second-harmonic generation with high efficiency. The approach breaks conventional design paradigms and offers a new framework for studying magnetic field-related nonlinear optical processes.
Researchers have developed a novel nonclassical hybrid passive-active power stabilization technique to break the limit of squeezing in the kHz band. The approach reduces technical noise by −122 dB/Hz to −165 dB/Hz, extending the feedback bandwidth from 50 kHz to MHz range.
Scientists have developed a new plasmonic nanocavity that enhances two-photon upconversion from 2D excitons by 2440-fold. The nanostructure's resonance wavelength can be adjusted to optimize light collection and emission directionality, leading to improved efficiency in nonlinear photonic devices.
Researchers developed a photonic-acoustic analysis scheme that integrates dual optical combs, multi-sensor parallel processing and electronic signal processing for unparalleled capabilities in sound detection, localization and recognition.
Researchers have developed a novel approach to control Dirac plasmon polaritons in topological insulator metaelements, enabling tunable terahertz optical devices with lower energy loss and enhanced performance.
Researchers developed reconfigurable nonlinear Pancharatnam-Berry optics using patterned ferroelectric nematics, enabling dynamic control over nonlinear phase shifts. The approach offers unprecedented flexibility for advanced optical processing, adaptive optics, and quantum information technologies.
Researchers developed a novel approach to visualize and quantify polluting nanoplastic particles in live intestinal organoids. The phasor-FLIM method demonstrates improved sensitivity and specificity for detecting internalized nanoparticles, allowing for accurate quantification of different types.
Researchers introduced a new wavefront sensing method using microlens arrays to measure the phase of position-correlated biphotons. This technique is inspired by classical SHWS and handles an important type of biphoton state in quantum imaging, which cannot be properly measured by previous methods.
Scientists have developed a recyclable luminescent solar concentrator (LSC) using a lead-free perovskite derivative, which absorbs sunlight and emits fluorescence to generate electricity. The LSC exhibits high power conversion and optical efficiencies, as well as self-healing and reversible transition properties.
Researchers review host-guest type organic ultra-long afterglow materials with focus on selection principles, efficiency improvement and photophysical properties. They highlight the unique long-lived excited state properties of these materials.
Researchers developed a plasmonic meta-RTWO with ultrahigh phase accuracy and figure of merit (FOM), overcoming traditional designs' limitations. The technology enables applications such as real-time calibration of antenna arrays in 6G massive MIMO systems and subpicosecond synchronization for terahertz quantum communication.
Reconstructive spectrometers combine miniaturized encoding hardware and computational reconstruction algorithms for high-fidelity spectral analysis. The field has seen significant advancements, enabling real-time spectral analysis in diverse environments, with applications ranging from healthcare to consumer electronics.
Researchers study impact of interactions on population distribution in topological trimer array, observing formation of nonlinear edge states. They extend domain of nonlinear topological photonics to ultracold atomic systems.
Researchers developed a novel robust saturable absorber by integrating a nanocavity heterostructure onto the fibre end facet, achieving single-pulse generation in approximately 85% of configurations. This enhances environmental tolerance and compactness for communication systems, high-precision sensing, and bio-photonics.