Researchers develop Fourier ptychographic coherence scanning interferometry for high-aspect-ratio micro-trenches, achieving high-resolution 3D topography and lateral resolution beyond the incoherent diffraction limit. The method overcomes challenges of strong optical modulation, enabling robust and accurate measurements.
This work demonstrates a synergistic strategy utilizing water molecules and BHT additive to achieve high-quality perovskite films with low defect density, resulting in an unprecedented amplified spontaneous emission threshold of 8.987 μJ cm-2. The dual-triggered film completes ASE intensity retention after 30-day ambient storage.
Researchers summarize advances, challenges, and prospects in light management for all-perovskite tandem solar cells. Strategies focus on minimizing external optical losses and enhancing photon capture capability to improve photon-to-carrier conversion efficiency.
Researchers have directly observed coherence collapse in quantum dot Fabry–Perot lasers, establishing practical design rules for isolator-free photonic integration. The lasers maintain telecom-grade performance even near the coherence collapse boundary.
Researchers have successfully observed and verified a topological Dirac vortex mode in terahertz photonic crystal fibers, enabling ultra-broadband signal transmission with zero polarization dispersion. This breakthrough has promising applications in terahertz sensing, subwavelength-resolution imaging, and distributed quantum networks.
Researchers have developed monolithically integrated III-V membrane photonic crystal lasers on SOI using selective lateral heteroepitaxy, achieving low-threshold single-mode lasing in the telecom band. This approach enables precise control of the active region and simplified fabrication, facilitating efficient and low-cost production.
Scientists create metasurface that reconstructs 3D vectorial holograms with high precision, sculpting both axial intensity and polarization state. The device enables volumetric vectorial holography for secure data encoding, optical computing, and advanced photonic communication.
Attosecond pulses rely on ultrafast lasers, which face performance bottlenecks in pulse energy, duration, wavelength, and repetition rate. Key technological routes include increasing pulse energy and peak power through amplification architectures and combining strategies.
Researchers have created a flexible microwave device that generates Stokes skyrmions in free space, even when bent or partially broken. These exotic field structures preserve their topological charge under deformation, making them suitable for encoding information and resisting distortion in wireless communication systems.
Scientists created an all-optical activation unit using PPLN nanowaveguides to realize nonlinear activation in photonic neural networks. The device delivers high second-harmonic conversion efficiencies and supports data rates beyond 100 GHz.,
The proposed OFC-SCR technique enables parallel multi-frequency interrogation, improving measurement speed by over an order of magnitude. It also achieves high frequency response, wide dynamic measurement range, high sensing sensitivity, and excellent robustness, pushing the performance boundaries of distributed fiber-optic acoustic se...
Researchers develop interferometric Image Scanning Microscopy (iISM) technique to deliver high-resolution imaging of intracellular structures in live cells without fluorescent labels. The method improves contrast-to-noise ratio and enables faster acquisition speeds, opening new opportunities for studying nanoscale cellular dynamics.
Researchers developed a multilayer grating solution to enhance RIXS efficiency in the tender X-ray range, reducing acquisition time from hours to minutes. The new spectrometer covers both soft and tender X-ray regions, offering improved performance for studying 4d transition metal materials.
A team of scientists developed a novel LiDAR architecture featuring an ultra-high frame-wise point acquisition rate, a 102° wide FOV, and an angular resolution of 6.5 mrad. The system overcomes conventional trade-offs, enabling high-speed and high-resolution imaging.
Researchers develop new material with reversible photoluminescence color switching upon heating or water exposure, opening pathway for smart optical materials. Flexible films with outstanding performance for temperature sensing and information encryption.
Researchers develop method for far-field superresolution imaging by disrupting spatial shift-invariance assumption in classical imaging systems. The new method, k-space superoscillation, achieves imaging resolution more than twice the diffraction limit without post-processing, outperforming traditional real-space superoscillatory systems.
Researchers design nanostructured surface to exhibit strong nonreciprocal magnetoelectric coupling, overcoming experimental challenges. The achieved Tellegen response is about 100 times stronger than that found in any known natural material.
Researchers develop a new approach to grow high-quality III-V active material on silicon in the form of ordered nano-ridge arrays, supporting symmetry-protected bound states in the continuum mode. This enables strong in-plane confinement and vertical surface emission from a compact device footprint.
The SUANPAN architecture proposes a novel approach to optical inner product computation, leveraging an array of emitter-detector pairs to perform linear vector operations. This scalable and reconfigurable design enables high-dimensional vector computations without requiring large-scale ADC or DAC arrays.
Researchers developed a synergistic strategy using Mo4+ and Ag+ ions in lanthanide-doped double perovskites, enhancing photon absorption and radiative recombination. This leads to ultra-broad NIR emission over 250-850 nm with high luminescence efficiency.
Scientists report a scalable photonic neuron that processes complex data in real-time, achieving ultra-low latency. The architecture directly addresses scalability challenges and enables reconfigurable operation with temporal memory.
A team of scientists experimentally demonstrated deterministic entanglement-assisted quantum communication over 20.121 km in fiber channels, outperforming classical communication in metropolitan areas. They proposed an improved continuous-variable dense coding scheme to enhance transmission efficiency and reduce excess noise.
The AI-enhanced OC-PAM system allows for longitudinal tracking of organoids, evaluating drug response and viability. It also detects rare cells within dense spheroids using radiomics-based analysis.
Researchers develop a new method to fabricate micro-supercapacitors with graphene hybrid nanostructured electrodes, achieving high power density and energy density. The technique enables precise control over electrode materials and structures, leading to improved device performance.
Researchers successfully decode 10 weak classical signals simultaneously using continuous-variable quantum dense coding in 20-km fiber channels. The channel capacity of deterministic entanglement-assisted quantum communication is increased compared to classical communication with coherent state.
Researchers have created a nonlinear metasurface that efficiently generates and steers visible light through controlled geometric phase. The device combines high-Q resonance enhancement with pixel-level control of the wavefront, enabling compact chip-based visible/UV sources and LiDAR beam steering.
Researchers have created a hybrid polaritonic crystal that enables dynamic tuning of Bloch modes by combining low-loss α-MoO3 with electrically tunable graphene. The material exhibits electrical control over its band structure, allowing for selective enhancement of Bloch mode resonance and on-demand switching of far-field radiation.
Researchers developed a phase multiplication technique harnessing laser feedback and cavity dynamics to enhance ranging resolution. Higher-order harmonics exhibit higher phase sensitivity, allowing for improved measurement accuracy.
Researchers have introduced a new dimension to holography called the optical operator, enabling scalability and security in holographic systems. The team demonstrated a 9-fold increase in channel capacity and a 2-bit operator-multiplexed hologram with ultra-secure encryption capabilities.
Researchers have successfully demonstrated the first InAs/InP quantum-dot laser in the mid-infrared 2 μm band, achieving a low threshold current density of 118 A/cm² at room temperature. The device's precise control strategy and high-density, uniform quantum-dot ensemble enable high-performance devices on heterogeneous platforms.
Researchers developed a comprehensive framework to describe intensity fluctuations in Spontaneous Brillouin scattering, linking its stochastic behavior to system parameters. Experimental validation confirmed theoretical predictions, revealing the universal fundamental precision limit imposed by SpBS noise on Brillouin metrology.
A new system integrates terahertz spectroscopy with deep learning to accurately image, detect, and classify explosives. It achieved a remarkable average classification accuracy of 99.42% at the pixel level for exposed samples.
Researchers develop novel thermometric method based on stimulated Brillouin scattering in gases, offering predictable and calibration-free temperature measurements. The technique enables direct retrieval of temperature from the Brillouin frequency shift, making it inherently absolute.
Researchers developed a new method for self-aligned laser transfer printing using Thermal Conductivity Gradient Carbon (TCGC) stamp, ensuring synchronous chip release and mitigating transfer errors. The SALT technique enables heterogeneous integration of diverse micro-objects onto various challenging surfaces with high accuracy and siz...
Physicists report the first experimental observation of quantum state transfer enabled by hidden symmetries in a network of laser-written optical waveguides. This discovery dramatically expands the design space for quantum circuits, opening the gates towards new classes of networks for secure quantum communication and cryptography.
Researchers visualized how light is transformed inside a chiral metasurface in both real space and real-time, achieving nanometer spatial resolution and femtosecond temporal resolution. The team found that the asymmetric near fields are a genuine signature of the chiral geometry.
Researchers have developed an on-chip nonlocal metasurface for color router, exploiting symmetry-broken quasi-bound states in the continuum to modulate light extraction intensity and spectral output. The approach achieves efficient, narrowband color routing while minimizing energy utilization efficiency loss from spatial multiplexing.
Developed by a collaborative team of researchers, the novel metasurface-based platform harnesses quantum interference to enable precise sensing of subwavelength lateral displacement. The system achieves high accuracy while reducing the required number of detected photons, making it suitable for next-generation semiconductor lithography.
The 2D charge-transfer Mott insulator VOCl demonstrates a strong nonlinear response and record nonlinear optical anisotropy. Its third-harmonic generation anisotropy ratio reaches ρTHG = 187, the highest known among van der Waals materials.
Researchers have developed two spectroscopic techniques based on quartz tuning fork detection, Quartz-enhanced photoacoustic spectroscopy (QEPAS) and light-induced thermoelastic spectroscopy (LITES), to improve gas sensing technology. QEPAS techniques enhance system signal strength using high-power lasers, novel excitation sources, and...
Researchers developed a novel approach to create dynamic metasurfaces using reversible metal electrodeposition, achieving high optical tunability. The technology demonstrates record-high signal-to-noise ratios in various wavelength regimes, enabling reconfigurable optical and thermal devices.
Researchers introduce a new class of topological phases, termed multi-topological phases (MTPs), which offer an avenue for understanding physical phenomena not explicable with conventional band topology. MTPs are characterized by distinct multiple topological invariants linked to their own boundary states.
Researchers developed a novel camouflage strategy using rough surface, silver nanowires, and biometric coatings to deceive multiple detection methods simultaneously. The device effectively simulated the spectral characteristics of vegetation and reduced infrared emissivity.
Researchers have developed a strategy to enhance the stability of CsPbI3 perovskite nanoplatelets by incorporating formamidinium, which improves bulk thermodynamic stability and surface ligand binding. This approach leads to highly oriented superlattices with improved linear polarization of light emitted.
A team of scientists creates a dynamically reconfigurable topological photonic platform that can control local topological properties in real-time using spatially patterned optical pumping. This enables the topological edge mode to be steered, redirected or blocked entirely by adjusting an external pump profile.
A new 'pocket microscope' technology enables direct molecular imaging with femtogram precision, transforming pathology workflows and opening new frontiers in space biology. The deep-ultraviolet ptychographic pocket-scope (DART) provides label-free spectroscopic contrast without external labels.
Physicists Tom Hoekstra and Jorik van de Groep have realized an actively tunable metasurface using a novel quantum material, enabling the creation of a nanoscale mirror that can be turned on and off. The device harnesses excitons in 2D materials to control light with record efficiency.
A team of scientists proposes a new scheme for 1D DTQW systems with coherent multiple long-range connectivity in the synthetic frequency lattice. This enables faster diffusion speed and breaks the weak coupling limit, facilitating quantum gate operations.
A new sample prior based point spread function (PSF) decoupling method enables accurate system characterization without theoretical assumptions. Regular biological samples act as modulators to optimize the system PSF, allowing non-parametric and adaptive imaging.
Researchers have developed a non-invasive technique, fast raster-scan optoacoustic mesoscopy, to observe microvascular endothelial dysfunction at the single-capillary level. The study found that this technology can resolve dynamics of individual cutaneous capillaries and provide better inter-day repeatability compared to existing methods.