A new off-axis bright- and dark-field OCT architecture enhances detection robustness by capturing complementary defect information. The system balances high axial resolution with deep penetration, allowing for precise defect localization and improved classification accuracy.
Researchers introduce bilayer and multilayer nonlocal flat optics, enabling control of optical modes through interlayer spacing, lateral displacement, and lattice mismatch. This emerging field provides routes to high-Q resonances, slow light, and enhanced nonlinear optical interactions.
Scientists develop laser-assisted method to create precise 2D-TMD diffractive elements with high resolution. The technique enables scalable production of gratings and lenses on various photonic substrates.
A novel digital phase-shift mask projection lithography strategy has been proposed to overcome limitations of conventional photolithography. The approach integrates phase-shift mask principles into a programmable maskless lithography platform, enabling sub-diffraction-limited patterning with improved image contrast and resolution.
A team of scientists developed a dual-band hydrochromic optical modulator for multimodal anticounterfeiting and encryption. The device changes its appearance in the visible and mid-infrared regions through three modes: water-triggered visible switching, infrared emissivity modulation, and chemical signature authentication.
A new multimodal fluorescence-phase microscopy (MFPM) system combines fluorescence excitation with label-free imaging, achieving precise spatial co-registration and maximizing data acquisition efficiency. This unified platform enables comprehensive biological investigations with enhanced imaging throughput.
Researchers developed a subarray programmable terahertz metasurface enabling optical logic and high-order amplitude modulation. The device achieves broadband transmission modulation from 170 to 260 GHz and can process information directly at the wavefront.
Researchers proposed a hybrid frequency-dimension simulator to explore complex lattice models, achieving scalable programmability and operation stability. The simulator's ability to introduce asymmetric couplings enables the simulation of diverse topological phases.
Researchers developed an all-soft robotic system utilizing liquid crystal holography for optical command processing, achieving a synergy of multi-degree-of-freedom actuation and information multiplexing. The system showcases an intelligent gripper capable of precise grasping and object classification.
A parallel heterodyne LITES sensor achieves high-speed and high-sensitivity simultaneous detection of multiple trace gases. The sensor's collaborative signal enhancement architecture and deep learning model enable precise mapping of gas concentrations from a single QTF output signal.
Researchers at Karlsruhe Institute of Technology developed a transformative approach to fabricate high-performance terahertz components with sub-micrometer precision. They combined multi-photon lithography with highly directive metal deposition techniques, achieving ultra-broadband chip-to-chip connections and suspended on-chip antennas.
Scientists propose a generalized Smith-Purcell effect based on programmable metasurfaces to redirect electron-induced light into chosen angles. The approach enables active tunability and broadens the range of applications for free-electron radiation, including nanoscale spectroscopy tools and compact light sources.
Researchers developed a dye-sensitized core-shell structure using Yb3+ as an 'energy relay' to achieve synergistic cascade energy transfer between ICG and the Er3+ core under 808 nm excitation. The system enhances luminescence intensity by nearly 2000-fold, providing superior performance for high-resolution imaging in deep tissues.
The team successfully generates a supercontinuum exceeding three octaves in the UV-to-MIR range, using thin-film lithium tantalate and reaching wavelengths below 270 nm. This breakthrough enables compact sources for spectroscopy and fundamental physics applications.
Researchers developed a method using chirped power oscillation waves to track high-speed motion with sub-micrometer accuracy. This technique directly uses time-domain intensity signals to eliminate frequency resolution limitations in short time windows.
This paper introduces a novel one-step vapor purification technique to achieve high-purity vapor atmospheres and reduce impurities in thermally evaporated devices. The approach successfully suppressed defect formation and improved stability in perovskite LEDs and OLEDs.
A new SPR holographic microscope has been developed with high sensitivity, label-free, non-invasive, and real-time measurement capabilities. It achieves ultrahigh RI resolution of 2.58 × 10⁻⁷ RIU and sub-nanometer thickness profiling resolution of 0.6 nm for atomic layer materials.
Scientists have found a way to create chiral light in free space using structured beams, enabling simpler control over spin and twist. This breakthrough could lead to new ways of encoding information in light, with potential applications in quantum communication and sensing technologies.
A team of researchers has found that the energy of light used to excite spin defects in hexagonal boron nitride affects their performance, leading to a threefold boost in contrast and calculated DC magnetic field sensitivity. The study also reveals a trade-off between emission stability and signal strength.
A team of scientists developed a minimalist optical system for achromatic imaging based on a monolithic integrated meta-axicon cluster. The novel imaging paradigm combines natural wideband consistency and computational imaging technology to achieve large-aperture, wide field of view (FOV), broadband achromaticity, and high resolution.
Researchers developed a simple oxide system with intrinsic self-recoverable mechanoluminescence without external energy input. The material exhibits strong near-infrared emission under mechanical stimulation, featuring reversible ionization and recapture process enabling consistent emission over thousands of loading cycles.
Researchers developed a novel single-active-region mid-infrared QCL architecture that achieves broad spectral coverage and high gain uniformity. The diagonal multi-state-to-continuum active region design enables strong coupling between upper lasing levels, substantially broadening the gain bandwidth of the active region.
Researchers developed a laser Speckle-based Curvature Optical Metrology (SCOM) instrument to measure two-dimensional surface curvature of X-ray mirrors. The system offers a compact, flexible alternative to traditional height-based interferometric methods.
A team of researchers has reported a generalized Doppler effect that enables simultaneous capture of rotation magnitude and direction with high accuracy. The approach uses spin-orbit coupling to encode motion information into multiple degrees of freedom, resulting in substantially larger frequency shifts than conventional methods.
Researchers have developed an AI-generated photonic framework that maps optical properties to subwavelength structures directly via a diffusion model. The system achieves high-precision mapping, flexible design constraints, and fuzzy search capability, transforming the field of photonic innovation.
A new paper reports a record-breaking optical vortex array with 3,070 phase-coherent vortices at a peak power of 58 megawatts. The system uses a novel three-mode representation and multibeam interference geometry to achieve scalability.
Engineered NIR-II-responsive plasmonic nanozymes degrade extracellular DNA and induce hyperthermia, destabilizing biofilm integrity. Biocompatible surface functionalization ensures seamless integration with bone implants.
Researchers developed a full-space adjoint topological optimization framework for meta-optics, achieving on-demand precise shaping of complex vector fields inside an optical cavity. This breakthrough overcomes limitations of conventional topological optimization and enables subwavelength-scale full-vector wave optimization.
Scientists create metasurface to generate singlet oxygen at molar-level concentrations, achieving six-orders-of-magnitude enhancement over conventional methods. This approach enables position- and pixel-selective cytotoxicity without additional molecular sensitizers.
A novel solar-thermal desalination process produces fresh water in an energy-efficient way, eliminating brine and chemical additives. The technology leverages the 'coffee ring' effect to extract salts from seawater, producing nearly 100% of the salts in solid form.
Researchers developed a system integrating convolutional neural networks and all-optical passive diffractive decoders for super-resolution image projection. The hybrid platform achieved significant improvements in image synthesis over extended depth, reducing data requirements without additional power constraints.
Researchers have developed an on-chip platform using ferroelectric spherulites to generate stable, broadband optical skyrmions across the entire visible spectrum. This breakthrough merges high-capacity data transmission with topological protection, opening new avenues for classical and quantum communication technologies.
Researchers developed an optically programmable dual-band perovskite single-pixel detector that acts as both a detector and decryption key, successfully encrypting color images with unparalleled security. The device's unique optical programmability enables it to distinguish between hidden information in different imaging modes.
Scientists develop on-chip system generating singlet oxygen at molar-level concentrations, exceeding conventional methods by six orders of magnitude. The approach enables position- and pixel-selective cytotoxicity without additional molecular sensitizers.
Scientists have developed a new form of covert communication called thermoradiative signatureless communication, achieved by balancing electroluminescence with negative luminescence in mid-infrared LEDs. This approach can blend into thermal background, leaving no trace for eavesdroppers and offering added security.
Researchers develop a powerful, compact solution for all-optical image processing using meta-operators that perform complex tasks like edge detection and 3D hologram reconstruction. The platform enables real-time computation without digital post-processing.
Researchers develop a novel adhesive based on liquid-like chalcogenide glass, enabling seamless bonding of high-index optical components and improving transmission and power delivery. The new material achieves significant enhancements in laser power delivery and durability under high-power conditions.
Researchers establish a population-dynamics framework to quantify Boltzmann behavior, introducing a stability rule and splitting factor for energy-level selection. This enables predictive design of dual thermally coupled architectures and phosphor-based thermosensing patches with high sensitivity and resolution.
Researchers developed a revolutionary solution for generating broadband, full-color optical skyrmions on a chip. Using on-chip ferroelectric spherulites, the team successfully generated skyrmions spanning the entire visible band and exhibited excellent topological stability.
A new method for measuring homogeneity in transparent cylindrical materials has been developed, allowing for non-destructive inspection without slicing. This approach significantly reduces costs and improves quality control, making it suitable for industries such as semiconductor manufacturing and medical imaging.
A team of scientists developed a wafer-level-manufactured meta-aspheric lens that achieves simultaneous wide field-of-view, ultrathin form factor, and high imaging quality. The design enables compact near-infrared imaging systems with robust performance in eye tracking, blood vessel imaging, and computational pixel super-resolution tasks.
A physics-guided neural network called SGARNet is developed to address challenges in lensless multi-core fiber imaging. It reveals the frequency-domain characteristic of honeycomb artifacts and introduces a SpectralGate module to selectively suppress artifact-related components, preserving useful image details.
Researchers have developed an electrically switchable continuous phase liquid crystal Fresnel zone plate, enabling efficient focus control for augmented reality headsets, compact cameras, and adaptive optical instruments. The device achieves a 80% increase in focal intensity compared to traditional binary Fresnel lenses.
Researchers have developed a single-pulse anisotropic amorphization lithography technique to create regular sheet-like structures inside all-inorganic dielectric crystals. The method uses ultrafast laser pulses to induce controlled phase transitions, enabling high-purity amorphization and precise control over structure formation.
Researchers developed curvature-optimized multilevel SERS substrates using femtosecond laser shaping, exhibiting enhanced Raman signal intensity and uniformity. The substrate features triple cross-scale structures with flexible shape parameters, promoting dimensionally ordered hot spots for improved detection sensitivity.
A new device combines high-performance single-photon generation with multidimensional state engineering, enabling flexible control over photon properties. The integrated platform delivers record-breaking source performance and opens up opportunities for resilient quantum entanglement and high-dimensional quantum communication.
Researchers developed a novel design paradigm for vectorial microlasers with designable topological charges using quasi-BIC Möbius-like correspondence in photonic-crystal slabs. This approach allows for programmable structured-light sources for integrated photonic circuits and multi-dimensional optical information encoding.
A team of scientists developed an AI-generated photonic (AIGP) framework that directly maps optical properties to subwavelength photonic structures using a latent diffusion model. The system achieves high-precision mapping, supports flexible design constraints, and possesses fuzzy search capability.
A new online platform enables non-experts to analyze complex OCT signals and generate realistic digital phantoms for optical cancer diagnostics. The platform's multimodal processing capabilities facilitate disease classification and tumor margin isolation.
Researchers have developed a novel approach to fabricate high-performance nanophotonic devices with record-breaking ultra-deep nanohole waveguides. The technique enables the creation of nanostructures with extreme depth-to-diameter ratios, overcoming long-standing limitations in single-pulse nanolithography.