Researchers investigate using classical thermal light sources for quantum applications, including teleportation and novel imaging. A new protocol is proposed to exploit the non-entangled yet non-classical state of two-photon OAM for high-dimensional image transmission.
A team of scientists developed a novel microcavity sensing technology to study the transition dynamics of poly(N-isopropylacrylamide) using optofluidic microcavities. The self-referencing method decouples multiple effects involved in physical/chemical reactions, allowing for detection of complex processes.
Biophotonic probes utilize biological entities for sensitive detection of biological signals and precise imaging of cellular structures. Optical waveguides play a crucial role in transporting light into deep tissues, while biolenses enable noninvasive screening tools for blood-related disorders.
Scientists have discovered a photonic realization of type-II Dirac nodal line semimetal with ring-shaped four-fold band degeneracy. The material exhibits a double-bowl state comprising two sets of almost degenerate perpendicularly polarized surface states, which is distinct from other photonic systems.
A novel engineered tunneling layer with enhanced impact ionization improves detection capabilities in graphene/insulator/silicon heterostructure photodetectors. The technique achieves a champion responsivity of ~1.03 AW-1 at a reverse bias of -10 V, showing great potential applications in sensing and communications.
Researchers investigated thermally activated delayed fluorescence (TADF) with weak light-matter coupling to improve OLED color purity. Using a Fabry-Pérot cavity, they found that weak coupling enhances emission spectra and increases light extraction efficiency.
Researchers developed a high-throughput Fourier-optics-based angle-resolved imaging spectroscopy system with robust neural network-based algorithms to solve inverse scattering problems. The system achieved a strong linear correlation between the reconstructed geometric parameters and atomic force microscopy measurements.
Scientists developed a new method for storing and encrypting data in 3D space using photo-modulated glass with reversible transmittance and photoluminescence manipulation. This technology offers a promising solution for huge storage space and security media in the optoelectronic fields.
Researchers developed a simple and robust method to map field patterns in silicon microdisks, observing resonant modes with drastically different dynamics. They confirmed chaos-assisted tunneling with unprecedented assurance by directly interrogating the dynamics inside the microcavity.
A new wavefront shaping method uses a digital micromirror device to modulate light at high speed, enabling precise control of focal spots in biomedical imaging. The method outperforms conventional genetic algorithm methods with improved contrast and optimization speed.
A team of scientists has fabricated an ultralow loss SiCOI platform with a record-high Q factor of 7.1×206, demonstrating various nonlinear processes including harmonic generation and cascaded Raman lasing.
Researchers have developed DiLFM, a dictionary-learning-based light-field microscopy that improves noise resistance and reduces artifacts. The method combines sparse signal representation and dictionary patching to produce high-quality volumetric imaging.
Researchers developed an in vivo flow cytometry method to monitor circulating tumor cells, revealing daily oscillations in CTC count that change with the day-night cycle. This discovery suggests a potential circadian rhythm regulating CTC release and could improve clinical detection methods.
Researchers use super-resolution infrared imaging combined with X-ray fluorescence nano-imaging to study amyloid toxicity on a subcellular level. They found that the distribution of trace elements in neurons is related to molecular mechanisms of Alzheimer's disease, offering new insights into preventing neuronal damage.
Recent progresses of silicon/2DM PDs are reviewed for their potential applications in various functional photonic integrated circuits. The article discusses the operation mechanisms, device configurations, and application scenarios of these photodetectors.
Laser technology utilizing nanostructures like quantum dots and dashes enables high-speed data transmission and low-latency communications. Scientists highlight the importance of these devices for industry and society, particularly in applications such as coherent communication and quantum key distribution.
Researchers developed a deep learning-based method to reconstruct 3D images of tissue samples using significantly less spectral data than normally required. The new approach successfully removes spatial artifacts, enabling faster imaging without sacrificing resolution or signal-to-noise.
Researchers developed a tapered fiber optoacoustic emitter (TFOE) for non-genetic photoacoustic neural stimulation at the single cell level. The technology achieves high spatial resolution and optoacoustic conversion efficiency, allowing for precise control over neuron activity patterns.
Scientists developed a label-free optical microscopy approach that can image deep brain cells with high resolution and minimal invasiveness. They used the 1700 nm water absorption window to visualize neuronal cell architecture across the entire depth of the mouse neocortex, revealing severe pathology in deep but not superficial cortex.
Researchers designed a cascaded LC flat optical element to achieve steering angle magnification independent of incident beam position. The system consists of two flat optical elements with phase profiles, achieving nearly diffraction-limited performance through ray-tracing simulations.
Researchers reviewed approaches to multi-material multi-photon micro/nano-printing, enabling targeted structures with diverse material properties. Automated systems are rapidly developing for combining multiple primary materials within a single machine tool.
Researchers developed sensitive SERS substrates via femtosecond laser processing for real-time sensing in biomedicine and microfluidic chips. Attomolar detection capabilities were achieved through synergistic enhancement effects, opening up new avenues for monitoring and sensing applications.
Researchers propose a triple-cycle heat treatment system to improve the microstructure and performance of 3D printed titanium-molybdenum alloy human implants, achieving better biocompatibility and mechanical properties matching human bones. This method enables more widespread use of 3D printed implants in the biomedical field.
Researchers develop parallel optical-soliton reactors to study multi-soliton dynamics, unveiling statistical rules that resemble classic chemical kinetics. The system enables on-demand synthesis and dissociation of soliton molecules, promoting a collective-level insight into soliton dynamics.
Researchers discovered non-reciprocal propagation in polarization-maintaining optical fibers due to ultrasound interaction. This phenomenon enhances sensing measurements and signal processing beyond the fiber's boundaries, opening new possibilities for advanced sensor networks.
Researchers demonstrate a novel measurement paradigm dubbed Robust Weak Measurement, measuring an anomalous weak value with a single photon detection event. The team obtains an observable with eigenvalues in the range [-7,7] and reports a weak value of the pre- and postselected system on which a single-click measurement was performed.
Scientists have successfully transferred and recovered quantum coherence from photons scattered in free-space for the first time, paving the way for new applications in quantum communication, imaging, and sensing. The novel technique uses custom hardware to maintain coherence even after scattering from a diffuse surface.
Researchers developed a method to enhance collection efficiency of single QDs using 3D printed micro-lenses, achieving intensity enhancements up to 2.1 and 26% in fibre-coupling validation. A standalone fibre-coupled device was also realised, opening the route to stable stand-alone devices.
Researchers from several institutions have successfully integrated a novel on-chip hollow-core light cage into an alkali atom vapor cell, overcoming previous limitations. The device exhibits high-speed gas diffusion and long-term stability, enabling integration with other technology platforms.
Scientists have developed a method to quantify internal OH- impurities in upconversion nanocrystals, revealing an exponential relation between luminescence intensity and OH- content. This discovery enriches our understanding of the quenching mechanism and paves the way for highly efficient lanthanide-doped materials.
A team of scientists has developed an efficient method to suppress meta-holographic artifacts while maintaining image quality. By fine-tuning the coherence of illumination using a degenerate cavity laser, they can reduce coherent artifacts and improve the spatial resolution of holographic images.
A team of researchers has created a nanostructured microscope coverslip that allows high-contrast pseudo 3D images of unstained biological cells to be obtained. This breakthrough method enables the visualization of cell shape and nucleus details, crucial for disease detection.
Scientists have developed a method to shape soft X-ray pulses with high precision, using self-phase modulation in the X-ray regime. This technique has the potential to unlock new protocols for femtosecond core electrons spectroscopies.
Researchers at Brussels Photonics develop a deterministic design method for freeform imaging systems using differential equations derived from Fermat's principle. The method generates 'first time right' initial designs that enable rigorous evaluation in solution space, reducing the need for trial-and-error approaches.
Researchers demonstrate simultaneous imaging of up to 6 subcellular targets with low crosstalks and high temporal resolutions. They achieve full-frame high sensitivities in quantifying mitochondrial matrix pH and intracellular macromolecular crowding.
A team of scientists has developed a phonon probe that uses optical fibers to create high-resolution 3D images of biological cells and tissue. The device achieves lateral resolution of 2.5 μm and can measure object height with 45 nm precision, opening up new possibilities for non-destructive diagnostics.
Scientists develop novel approach to boost single-molecule fluorescence with asymmetric nano-antennas, achieving enhancement factors up to 405 and quantum yields of 80% without sacrificing photostability. This breakthrough enables higher imaging resolution and tissue penetration depth in biomedical applications.
Researchers have proposed a photonic in-plane nodal chain and non-Abelian nodal link stabilized by generalized quaternion charges. These structures are uniquely stable in photonics due to internal symmetries of Maxwell equations, offering new insights into topological phases.
Researchers have developed a novel super-resolution vibrational microscopy harnessing Stimulated Raman Excited Fluorescence (SREF) for ultrasensitive vibrational contrast. This technique enables all-far-field Raman spectroscopy with sensitivity down to single-molecule resolution.
A team of scientists has developed a single spin-decoupled metasurface that can distinguish between spatial angular moment (SAM) and orbital angular momentum (OAM) modes. The device exploits the geometric phase and dynamic phase to transform vortex beams into focusing patterns, enabling simultaneous detection of SAM and OAM.
Researchers at MIT have developed a dynamical machine learning approach to tackle the challenge of reconstructing object interiors from limited-angle data. The method exploits sequential information to improve reconstructions, achieving promising results in weak and strong scattering conditions.
Research on interlayer excitons in TMDs vdW heterostructures reveals ultrafast formation, long population recombination lifetimes, and intriguing spin-valley dynamics. The properties ensure good transport characteristics and pave the way for potential applications in efficient excitonic devices.
Researchers developed a result-diversified automatic design method for freeform optics, generating various three-mirror systems with high imaging qualities. The method provides a brand new thought for fully automatic optical design, enabling exploration of solution spaces and changing the working mode in engineering applications.
Researchers developed a novel assembly technique to fabricate CQD-assembled microspheres with high thermal stability and efficient light-matter coupling. Single-mode lasing is achieved at temperatures up to 450 K, paving the way for large-scale industrial production.
Scientists develop a generic approach to generate arbitrary vectorial optical fields (VOFs) using metasurfaces, offering improved efficiency and control over polarization. They experimentally demonstrate the generation of VOFs in both far-field and near-field regimes with tailored wave fronts and inhomogeneous polarization distributions.
Chinese scientists summarize the latest progress of CPL-active organic micro-/nano-structures, which can reduce energy loss in displays and photonic technologies. The review discusses design principles, external stimuli regulation, and potential applications, including OLEDs, optical information recording, and sensing technologies.
Scientists quantify space-time nonseparability of electromagnetic pulses using quantum state tomography and calculate fidelity, concurrence, and entanglement. They propose novel concepts for measuring space-time entanglement in structured light, opening new avenues for ultrahigh-capacity communication and high-security encryption.
Researchers have developed a novel method to improve photovoltaic performance in perovskite solar cells by modifying grain boundaries with 2D materials. The modifications lead to enhanced carrier mobility and stability, even under certain conditions where grain boundaries are favorable for device performance.
Researchers from Fraunhofer ITWM and Technische Universität Kaiserslautern create a new photosensitive material that enables the fabrication of highly conductive microcomponents via direct laser writing. The approach demonstrates high material density and on-chip compatibility, offering vast potential for improving antenna performance.
A new recurrent neural network framework enables fast and efficient 3D imaging of fluorescent samples, reducing scan times by ~30-fold. The approach uses few 2D images to reconstruct 3D images, mitigating photo-bleaching challenges in live sample experiments.