A new type of luminescent diradical has been created, showing high photoluminescence and photo-stability. The material demonstrates significant single-molecule magnetoluminescence properties, achieving a giant ML value of 210% at a magnetic field of 7 T.
A new machine learning-based adaptive optics method, MLAO, enhances microscopy imaging by requiring fewer sample exposures and coping with high noise levels, random sample motions, and blinking events. The approach provides physical insights into the imaging process, enabling better understanding of aberrations and internal workings.
Researchers develop a passive approach to night-time warming by harnessing energy from the atmosphere, reducing reliance on electric heaters and lowering energy consumption. The new strategy achieves significant temperature increases and annual electricity savings of over 300 kWh m-2 in various climate zones.
Researchers developed an AI model analyzing 3D label-free changes in immune cell structure during healthy conditions, sepsis diagnosis, and recovery. Significant morphological changes were identified, suggesting CD8+ T-cell structures as a valuable complement to traditional diagnostic tools.
A team of scientists has developed a single-molecular Raman switch that can be controlled using both electrically driven conformational switching and optical inputs. The study demonstrates the use of near-field-enhanced techniques to manipulate molecular states, enabling highly accurate methods for nano-scale systems.
Researchers develop a new type of light guide plate using perovskite nanocomposites, achieving high transparency and improved performance in liquid crystal displays. The uniform distribution of nanoparticles is critical to the properties of the nanocomposites, enabling efficient light guidance.
Researchers develop optical PUF with random wrinkles structure, generating unique digital values difficult to predict. This technology has potential beyond authentication systems, including anti-counterfeiting and data storage technologies.
Researchers develop complete theoretical model for Fringe Projection Profilometry (FPP) to evaluate its measurement precision. The new models provide a generic noise chain and transfer models, achieving accurate results in various regions of the camera.
Recent review highlights research progress on spatiotemporal mode-locking (STML) and dissipative solitons (STDSs) in multimode fiber (MMF) lasers, outlining breakthrough perspectives for STML. Achieving ultrahigh pulse energy and arbitrary mode profiles is crucial, enabling diverse applications such as nonlinear microscopy.
Researchers have developed a roll-to-roll polymer film for improved radiative cooling by arranging 3D trench-like structures within the thin layer of the polymer film. The novel technique achieves high cooling performance with low energy input, making it suitable for large-scale thermal management applications.
Researchers developed a new type of laser using Dirac-vortex photonic crystal lasers on silicon, offering high performance and robustness. The discovery paves the way for next-generation silicon-based photonic integrated circuits.
Researchers developed a new garnet material with enhanced quantum efficiency and thermal stability, using chemical unit cosubstitution. The material shows promising applications in bio-tissue imaging, night-vision, and information encryption.
A new technique using chaotic laser and quadratic correlation algorithm improves spatial resolution of traditional sensors, enabling centimeter-level detection at 1.5 km distance. The approach optimizes signal-to-noise ratio and resolves the pulse width limitation.
Researchers successfully extend lasing beyond the fluorescence spectrum of Yb-doped La2CaB10O19 crystal through phonon engineering. Theoretical calculations predict a broadband emission spectrum with increased phonon numbers, demonstrating potential for self-frequency doubling and various applications.
Researchers have created deterministic potential wells to trap and manipulate exciton polaritons in WS2 monolayers at room temperature. This enables the achievement of strong nonlinearity while maintaining thermal stability, paving the way for integrated polariton-based devices.
A new deep learning approach called Self-Net improves volumetric fluorescence microscopy's 3D resolution isotropy, enhancing image quality and enabling accurate analysis of complex biological structures. This method enables fast training and inference speed, promoting discoveries in life sciences.
Researchers have developed an ultracompact, high-speed, and energy-efficient electro-optic modulator using topological interface states in a 1D microstructure lattice. The device features a large modulation bandwidth of 104 GHz and low power consumption of 5.4 fJ/bit.
Researchers have observed simultaneous oscillations of spin and orbital angular momentum in weak and strong coupling regimes, driven by optically synthesized magnetic fields. The findings offer a general framework to explore spin-orbit couplings in higher-order regime.
Recent studies have made progress in developing blue PeLED devices, with techniques including compositional engineering, dimensional control, and size confinement. The goal is to increase efficiency and stability, overcoming the current limitations of 10% efficiency and insufficient stability. By exploring these technical routes, scien...
Researchers developed a novel WGM microprobe to enhance Raman signals by combining surface-enhanced Raman spectroscopy (SERS) and whispering-gallery-mode (WGM) microresonators. The platform enables 2D hyperspectral imaging with signal enhancement, opening opportunities for material analysis and chemical imaging.
High-throughput terahertz imaging has made significant progress, enabling real-time imaging applications. Computational methods such as digital holography, spatial encoding, and diffractive processing have improved image resolution and capabilities.
Researchers have developed a new technique for manufacturing 3D microlens arrays using holographic fs-laser processing-assisted wet-etching technology. This method offers high precision, efficiency, and versatility, enabling the fabrication of complex 3D patterns with high fidelity.
Researchers developed a simple, one-step method for creating large-area liquid crystal microlens arrays (LC-MLAs) with high focusing quality. The LC-MLAs demonstrate polarization-dependent, electrically tunable properties, allowing for adjustable focal length and image depth control.
Researchers have developed high-speed and high-responsivity photodetectors on a thin-film lithium niobate platform, achieving a 3-dB bandwidth of 110 GHz and responsivity of 0.4 A/W at 1550-nm wavelength. The devices demonstrate potential for ultra-high-speed optical communications and multi-function integrated quantum photonics.
A new holographic 3D display system has been developed with a wider viewing angle of 73.4°, significantly improving over previously proposed systems. The system uses SLMs and liquid crystal grating to achieve this improvement.
A new laser-based process chain has been developed to fabricate fused silica optics with high laser-induced damage thresholds, overcoming conventional manufacturing limitations. The process uses CO2 lasers for uniform layer-by-layer surface removal, precisely eliminating subsurface mechanical damage and surface/subsurface contamination.
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.
A new methodology for QPI of objects covered by random unknown phase diffusers uses diffractive optical networks and deep learning. The system axially spans ~70λ and performs all-optical phase recovery and quantitative imaging with high image quality and low power consumption.
Scientists develop 3D volumetric optical encryption using dual-light emitting fluorescent-phosphorescent materials, concealing real info with transient phosphorescence. The technique enables secure data protection and could be used in wearable sensors and displays.
Researchers have demonstrated an achromatic diffractive liquid-crystal optics system with ultrathin formfactor and light weight, improving color performance and overcoming chromatic aberration in virtual reality displays.
A team of scientists creates a universal paradigm for achieving high-efficiency exceptional point (EP) in the visible using interlayer loss to control the interplay between lossy structure and scattering lightwaves. The bilayer framework demonstrates perfect retroreflection and absorption, with efficiencies of 88% and 85%, respectively.
A team of scientists has developed a chip-integrated metasurface-based Full-Stokes polarimetric imaging sensor inspired by the mantis shrimp eye, achieving high accuracy and large field of view. The sensor operates at visible wavelengths with ultra-compact footprint and CMOS compatibility.
Researchers developed a dielectric metasurface for amplifying upconversion emissions in lanthanide-doped UCNPs, showcasing ultrabright emission at dual bands. The polarization-controlled dual-band upconversion bursts demonstrate ultra-high degrees of polarization.
Researchers developed lithographically defined asymmetric and symmetric Mie-scatterers for subwavelength control of wave transmission and reflections. The device platform enables pre-defined chiral light propagation and backscattering-free resonances, needed for various applications such as frequency combs and photon blockade.
Researchers demonstrate high levels of Raman amplification at 2.2 μm using a highly nonlinear silicon core fiber platform, extending the reach to 4 mm and beyond via cascaded processes. The work provides a crucial step towards compact and tunable mid-infrared systems.
Researchers have experimentally observed nonlinear photonic disclination states in waveguide arrays, which can enhance nonlinear effects and enable stable lasing. These findings may lead to new ideas for developing compact optical functional devices.
Researchers have developed infrared avalanche photodiodes using bulk and 2D materials, offering improved detection efficiency and flexibility in heterostructure design. The devices exhibit exceptional capabilities such as mechanical flexibility and strong light-matter coupling.
Scientists use a new imaging technique to visualize collagen fibrils in intact human corneas, showing the main direction of lamellae changes with depth. This study enables characterizations of corneal structure and behavior, paving the way for understanding diseases like keratoconus.
A team of scientists has developed an intense four-octave-spanning ultraviolet-visible-infrared full-spectrum laser source using a cascaded architecture of gas-filled hollow-core fiber, lithium niobate crystal, and chirped periodically poled lithium niobate crystal. The system leverages the synergic action of second-order nonlinear eff...
Scientists have developed speckle diffraction tomography, which enables high-resolution images of thick biological samples with lateral resolution up to 500 nanometers. The technique offers full-field quantitative imaging capabilities, revealing nanoscale features in complex specimens.
A new AI-executable, end-to-end-automated XPCS workflow enables the study of spontaneous dynamics in complex fluids. The technique uses a spatially-coherent X-ray beam to probe dynamics at all length scales.
New plasmonic metafiber EOMs integrate devices on optical fiber facets, eliminating coupling complexity and reducing losses. The modulation speed reaches up to 1000 MHz with a bias voltage of ±9 V.
The article introduces a new design method for on-chip metalens that enables efficient optical interconnection between devices with large scaling ratios. The optimized metalens achieves high transmission efficiency, lower stray light, and improved focusing efficiency compared to traditional waveguide tapers.
Researchers developed FPI-based phase demodulation for heterodyne LITES, improving SNR and detecting gas concentrations accurately. The method reduces interference and provides linear response, long-term stability, and independent signal peak-to-peak values.
The article discusses measurement techniques for aspheric surface parameters, including general fitting and center-of-curvature-based methods. These methods assess the quality of aspheric surfaces and provide direction for processing and suitable targets for processing.
A team of researchers led by Professor Aydogan Ozcan has developed methods for designing all-optical universal linear processors of spatially incoherent light. These processors use successive diffraction of light to perform arbitrary linear transformations without external digital computing power, enabling fast and energy-efficient com...
A new platform for integrated spectrometers has been proposed using solution-processable semiconductors, enabling ultra-narrowband detection and spectral tuning. The platform exploits conjugated-BIC photonics, allowing for high spectral resolution and wide tunability.
Researchers at Xiamen University developed a topological spin light-emitting diode to manipulate the quantum state of light. The breakthrough enables the creation of large-scale, room-temperature stable chiral photon sources without external magnetic fields, paving the way for miniaturization and device integration in quantum technology.
A team of scientists has developed a technique that uses high-frequency terahertz radiation to slow down amyloid deposition in Alzheimer's disease. The research found that the radiation can modulate protein conformation and delay fibrillation, presenting a promising strategy for treating the disease.
A new multifunctional metalens has been developed to structure quantum emissions from solid-state single photon emitters. The metalens can simultaneously tailor directionality, polarization, and orbital angular momentum degrees of freedom, enabling the generation of high-dimensional single-photon hybrid quantum states.