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.
A new thermochromic hydrogel design can regulate both solar transmission and rapid visible-light stealth at any temperature, with potential applications in energy-efficient windows, military equipment, and anti-counterfeiting. The innovation enables fast response times of just 1 second.
Color-conversion displays have gained prominence in the industry due to their advantages such as high brightness, wide color gamut, and improved contrast ratio. Researchers are focusing on advancements in color conversion Micro-LED displays to commercialize this emerging technology.
Researchers developed a new biocompatible sensor substrate enhancing fluorescent tags without disrupting cell function. The Ag nanoislands protected by silica overlayer increase signal ten million times, suitable for environmental pollutant detection and medical diagnosis.
The DEEPscope microscope combines two-photon and three-photon microscopy techniques to capture large-scale neural activity and structural details. Researchers achieved single-cell resolution imaging across extensive brain regions, observing over 4,500 neurons in deep cortical layers of transgenic mice.
Research on optical neural networks (ONNs) has made significant progress, addressing challenges of low integration, stability, and portability. ONNs offer advantages over modern computing hardware, enabling strong computational support for societal development.
The LDSP framework integrates deep learning optimization into traditional DSP, achieving substantial improvements in performance and efficiency. It optimizes DSP parameters globally using backpropagation algorithms, resulting in enhanced compensation for linear and nonlinear performance.
A team of scientists has developed a fiber-optic drug delivery strategy that targets cancer tumors with high precision and efficiency. The system uses photons, photothermo-sensitizers, and chemotherapeutics to induce localized hyperthermia, releasing encapsulated drugs and ensuring minimal side effects.
Researchers have developed a new planar spectral singlet lens that unifies optical imaging and spectrometry, enabling simultaneous data acquisition. The device uses planar liquid crystal optics to achieve precise phase controls and spectral filtering, resulting in high-quality hyperspectral images.
Researchers developed a new biocompatible sensor substrate using Ag nanoislands protected with column-structured silica, increasing fluorescence and Raman signals by 10 million times. The technique enables non-invasive monitoring of biological processes without disrupting cell function or causing damage.
Researchers designed a multipass cell with dense spot patterns to enhance laser absorption spectroscopy gas sensors. The new design achieved high sensitivity and selectivity, enabling the detection of methane at low levels.
A meta-imaging camera has been developed for aberration-robust monocular passive depth sensing, outperforming traditional light-field cameras in depth estimation precision and robustness. The camera's capability to overcome spatial resolution and angular resolution trade-offs enables accurate depth sensing even in the presence of optic...
A team of scientists has reported the experimental observation of a nonlinear fractal higher-order topological insulator, which supports a rich variety of topological corner states. The fractal structure can exhibit hybrid corner states and co-existing outer corner states with different internal structures.
Researchers have developed dielectric metamaterials exhibiting effective self-duality and full-polarization omnidirectional Brewster effect. These materials enable impedance matching with free space, eliminating birefringence despite significant anisotropy in dispersion.
A recent breakthrough in ultra-broadband diffractive imaging has enabled the handling of unknown probe spectra, overcoming constraints on non-dispersive specimens. This innovation provides a nearly fourfold improvement in bandwidth over current mono CDI methods.
A team of scientists developed a method to increase the light collection efficiency in multicore optical fibers by thermally modifying them. This results in more than five times higher signal-to-noise ratio and significant gain in image contrast, making it suitable for minimally invasive medical procedures.
A new optical time-stretch quantitative interferometry (OTS-QI) system records surface morphology during laser polishing with nanosecond-level temporal resolution. The system achieves remarkable measurement speeds exceeding 100 million times per second while preserving accuracy comparable to existing white light interferometers.
Researchers developed a novel side-polished fibre pump combiner that achieves high coupling efficiency and stabilizes Mid-IR laser operation. The design effectively distributes heat load across the polished fibre area, enabling long-term stable operation with low excess losses.
Researchers developed a wavelength sensor using photocurrent waveforms, achieving precise wavelength recognition with an error rate below 0.1%. The approach offers valuable insights for future spectrum optoelectronic devices.
Researchers have discovered a giant infrared bulk photovoltaic effect in tellurene, allowing for broad-spectrum neuromodulation. The study found that tellurene nanomaterials can elicit action potentials under broad-spectrum light irradiation, comparable to electrical stimulation.
Researchers develop laser solid-phase synthesis technique to produce graphene-shell encapsulated CrMnFeCoNi nanoparticles, exhibiting excellent electrocatalytic activity towards oxygen evolution reaction. The method offers simplicity, generality, and tunability to synthesize phase-separation-free HEA nanoparticles.
Scientists have created a method to switch between optical pulling and pushing forces by altering the shape of Fermi arcs in topological photonic Weyl systems. This approach enables a stable optical pulling force effective across various particle types, regardless of size, shape, or refractive index.
Scientists develop green Micro-LEDs with high brightness and resolution, overcoming energy conversion efficiency limitations. The innovative wafer-scale uniform GaN-on-silicon epilayer technology enables the mass production of high-brightness Micro-LED displays on large size epi-wafers.
Researchers developed a broadband CPL photodetector using an achiral structure to detect left- and right-hand circularly polarized light with an ultrahigh discrimination ratio. The device operates across the entire visible spectrum and can accurately detect small changes in light ellipticity.
A new device has been developed to analyze and control partial coherence in multimode spatial light fields, utilizing integrated photonics platforms and arrays of reconfigurable Mach-Zehnder interferometers. This technology can enhance applications in advanced imaging systems, environmental sensing, and optical communications.
A non-stoichiometric material exhibits color change in response to different ultraviolet light stimuli, demonstrating excitation-wavelength-dependent emission properties. The material can display multicolor afterglow patterns, enabling the development of a new information read-write mode.
The study introduces a reconfigurable simultaneous lightwave information and power transfer (SLIPT) system using a MIMO-based configuration, addressing existing OWC systems' limitations. The system achieves high-speed communication and efficient energy harvesting, enabling autonomous IoT devices in harsh environments.
A new transduction phenomenon allows for precise and nondestructive readout of memory units in crossbar designs. Researchers utilized this feature to achieve accurate reading of resistance states in a 4x4 resistive storage array.
Researchers have developed a new approach to infrared imaging using silicon metasurfaces, enabling broadband imaging across a wide spectrum. This breakthrough technology offers a promising solution for advanced infrared imaging applications, overcoming current limitations of bulky and power-hungry cameras.
Researchers review recent advancements in phase-change VO₂-based thermochromic smart windows, highlighting their potential to balance thermal comfort and lighting. The study covers various doping strategies and fabrication techniques, offering new insights into developing energy-efficient buildings.
Researchers developed OTS-QI technology to record surface morphology during laser polishing with nanosecond-level temporal resolution. The system achieves high spatial and temporal resolution while measuring surface roughness evolution in real-time.
Recent breakthroughs have made microcombs more efficient, enabling portable and easy-to-use devices for various scientific tasks. These devices have enabled applications such as spectroscopy, optical frequency synthesis, astronomical calibration, and LiDAR.
Recent breakthroughs in microcomb design and control enable novel applications in classical and quantum information, including signal generation, spectroscopy, and medical imaging. Microcombs hold promise for transforming various scientific and industrial sectors through precise light and information control.
A novel concept for a hybrid fibre pump combiner is introduced, enabling high-power, long-term stable operation in Mid-IR fibre laser systems. The design leverages evanescent field coupling to overcome the limitations of soft glass fibres.
A team of scientists developed a new method for 3D nanolithography using low peak power laser oscillators, enabling the creation of non-photosensitized materials without photo-initiators. Wavelengths of 517 nm, 780 nm, and 1035 nm are suitable for producing 300 nm polymerized features with high linear writing speeds.
Scientists developed a chiral nanocomposite probe for in vitro UCL/CD dual-mode sensing of H2S and in vivo imaging using upconversion nanoparticles. The ZIF-8 encapsulation shell eliminates interference effects, achieving highly selective detection.
Researchers implement defect-robust multi-channel signal processor by tailoring long-range interactions in topological photonic lattices. This approach enables multichannel topologically-protected edge modes and breaks the trade-off relation between channels and bandwidth, leading to enhanced information capacity.
Researchers investigate underlying mechanisms of photonic phase transitions in one-dimensional Rayleigh scattering systems, uncovering unique laws governing the phenomenon. They propose a model that reveals an analogy between temperature and disorder in magnetic spin glass phases, shedding light on universal phase transition mechanisms.
A team developed an AI system to analyze label-free photoacoustic histological images of human liver cancer tissues, achieving 98% accuracy in distinguishing between cancerous and non-cancerous cells. The integration of PAH with AI reduces tissue biopsy time and enhances reliability.
A team of scientists has proposed a high-precision measurement method for large-aperture optical elements, overcoming limitations of existing techniques. The new method uses laser differential confocal and interferometric techniques to measure multiple parameters with nanometer precision.
Scientists have created an artificial compound eye that achieves real-time panoramic direct imaging and dynamic motion detection, surpassing natural compound eyes. The camera features a 180° field of view, ultrafast angular motion detection, and can be integrated into applications such as obstacle avoidance systems for drones and endos...
Researchers have developed femtosecond laser-induced perovskite precipitation technology, enabling high-precision patterning of perovskite materials. This technology has shown great potential in anti-counterfeiting and information storage, as well as optical displays and micro-LEDs.
Researchers create luminescent labels using strontium aluminate particles coated with H3PO4, which exhibit sustained high signal-to-noise afterglow emission. The labels are delivered into plants through microneedles, enabling efficient recording and storage of plant growth information.
A novel 3D tubular photothermoelectric detector was designed and fabricated, demonstrating enhanced light absorption and heat localization. This leads to improved photo-thermo-electric conversion, resulting in high sensitivity, wide spectral response range, and omni-directional detection capabilities.
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.
The team proposes an approach for arbitrarily controlling the polarization direction and phases of reflected waves in linear and nonlinear ways using a stacked programmable metasurface. They achieved high polarization rotation ranges and demonstrated applications in imaging, data storage, and wireless communication.
A new method of constructing 2D lateral p-n junctions using low-energy ion implantation has been developed, enabling precise modulation of 2D material conductivity and fabricating patterned doping. This technique demonstrates the universality of the method on various 2D semiconductors.
Researchers have developed a novel multi-step facet engineering approach for growing wurtzite-based InGaAs/InP MQW NWs with controlled size, morphology and high crystal quality. This enables the design of controllable nanowire optical cavities, allowing for tunable lasing peaks across the telecommunication O and C bands.
A new dynamic anti-counterfeiting application has been developed based on fluorescent electrophoretic display technology. The device exhibits multifunctional anti-counterfeiting capabilities with a fast response time, high contrast ratio, and bright green fluorescence.
A new study introduces a faster approach to analyzing scattered light, enabling real-time monitoring of medication manufacturing. The technique reduces reconstruction time from 15 seconds to 0.25 seconds and offers a low-cost non-invasive particle size probe for efficient production.