Articles tagged with Photonics
Researchers have revealed conditions for robust entangled states transport in photonic topological insulators. They identify physical mechanisms and thresholds for maximizing entanglement while preserving topological protection.
Researchers developed a holographic endoscope made of single-hair thin optical fibers to reconstruct images of macroscopic objects at larger imaging distances. The tool sheds light on biological processes occurring at the macromolecular and subcellular levels, allowing for better treatment of severe brain diseases like Alzheimer's.
Researchers found that high-energy laser light ejects electrons from quantum dot atoms, trapping holes and producing waste heat, reducing efficiency. The study uses electron camera technology to observe atomic movements at the nanoscale.
A new microcomb technology has been developed by researchers at Chalmers University of Technology, which can generate a wide range of optical frequencies with high precision. This technology has the potential to be used in various applications, including exoplanet discovery and disease diagnosis.
Polaritons form structures behaving like molecules, with properties such as new energy states and optical properties. Artificial polariton molecules have potential uses in quantum information systems, including dissipating less power and operating faster than traditional methods.
The generation of dissipative solitons and coherent frequency combs in a photonic dimer made of two microresonators enables real-time tuning of the soliton-based frequency comb. Soliton hopping, a phenomenon not present at the single-particle level, can be used for generating configurable combs in the radio-frequency domain.
Scientists have successfully demonstrated a quantum advantage by performing a verification task in seconds using a quantum machine, whereas the same task would take centuries for a conventional computer. The experiment used a complex algorithm and simple experimental photonics system, showcasing the potential of quantum computing.
A digital-to-analog converter has been developed without leaving the optical domain, enabling high-speed data processing with low power consumption. This innovation has the potential to advance next-generation data centers, 6G networks, artificial intelligence and more.
Researchers at NC State University developed a new approach to design photonic devices, controlling light direction and polarization from thin-film LEDs. This technology paves the way for lighter, more efficient VR and AR headsets with improved efficiency and clearer views of the real world.
Researchers investigate photonics as a solution to develop fast and energy-efficient computing systems inspired by the human brain. By mimicking biological processing systems, they aim to reduce energy losses and improve processor speeds.
The DEEPER project develops new photonic technologies to access deep brain regions and reveal molecular and cellular dysfunctions underlying neurological disorders. The project aims to develop minimally invasive tools for treating diseases such as Alzheimer's, addiction, and depression.
Researchers developed a new AO module comprising two deformable phase plates, enabling direct integration with existing microscopes. The system successfully corrected sample-induced aberrations in synthetic samples, demonstrating improved image quality and doubling the aberration correction range.
Researchers developed photonic processors to process information rapidly and in parallel, enabling complex mathematical tasks at fast speeds. These chips use wavelength multiplexing for highly parallel data processing.
Researchers developed a new approach using light-based processors to accelerate matrix-vector multiplications in neural networks. The photonic chips achieve parallel calculations using multiple wavelengths of light, enabling complex mathematical tasks to be processed at high speeds and throughputs.
Researchers at Nanjing University designed a topological-insulator waveguide-resonator system that solves the critical coupling problem in electronics and photonics. The system supports spin-locked modes, eliminating backscattering and induced noise, while retaining transmission spectral characteristics.
A joint research led by City University of Hong Kong has built an ultralow-power consumption artificial visual system to mimic the human brain. The device achieves a record-low energy consumption down to sub-femtojoule per synaptic event, outperforming human brain synapses.
A curved blade is proposed for a laser scalpel to expand its medical applications, being two times thinner than the current cylindrical option. The concept utilizes a photonic 'hook' formed by an amplitude or phase mask at the fiber end, enabling precise tissue manipulation and reduced bleeding.
Two Stanford engineers developed a technique to disinfect personal protective equipment (PPE) with ultraviolet light, eliminating 99.9999% of pathogens in under five minutes. They designed and donated a method for healthcare providers worldwide to build PPE sterilization units, helping launch do-it-yourself efforts in over 25 countries.
Researchers developed bioresponsive dynamic barcodes using cavity-enhanced radiative energy transfer, converting biomolecular information into distinctive photonic barcodes. The system can detect molecules in a droplet with improved signal-to-noise ratio, enabling real-time intermolecular interaction and biosensing applications.
Jifeng Liu, a professor at Dartmouth's Thayer School of Engineering, has been named an OSA fellow for his work on renewable energy and reducing energy consumption in information technology. His research focuses on advancing solar technologies that are less expensive and more efficient.
Researchers at the University of Sydney have developed a new 'photonic wavefront sensor' using AI and machine learning to correct atmospheric distortion, allowing for direct imaging of exoplanets from Earth. This innovation could revolutionize the study of exoplanets and their potential for life.
The UPV research team is working on generic purpose programmable chips that can provide numerous functionalities using a single structure. This technology has great potential and value due to its complementarity with electronics.
Kyu Young Han, an assistant professor at the University of Central Florida, has been awarded a $1.7 million NIH grant to develop a novel bioengineering tool and imaging system for super-resolution microscopy. This technology could enable researchers to image multiple proteins in a single cell in just 24 hours, revolutionizing the under...
Researchers have discovered a simple method for creating a curved photonic beam using a microparticle, which can be used for various applications such as microscopy and lithography. This breakthrough enables the creation of more flexible and versatile photonics devices.
Researchers from the University of Exeter have discovered a way to manipulate light using a synthetic Lorentz force, enabling photons to mimic charged particle dynamics. By distorting honeycomb metasurfaces, they created artificial magnetic fields that can be tuned using precision photonic devices.
Researchers at Karlsruhe Institute of Technology (KIT) have developed a novel concept for low-cost terahertz receivers that enable ultra-fast wireless communications at low cost. The proof-of-concept experiment demonstrated transmission at a data rate of 115 Gbit/s and a carrier frequency of 0.3 THz over a distance of 110 meters.
Researchers developed a terahertz wireless chip using photonic topological insulators, enabling error-free signal transmission at 11 gigabits per second. The discovery paves the way for ultra-high-speed communication in future '6G' networks.
A new technology has been developed by Penn State researchers that enables better light control without requiring large materials and structures. This hybrid photonic architecture combines the best qualities of photonic integrated circuits and metasurfaces, paving the way for multifunctional devices with flexible access to free space.
A new approach uses photons to perform computations required by neural networks, improving speed and efficiency. Photonic tensor cores can process data in parallel, reducing power consumption and increasing throughput.
Researchers have demonstrated strong topological order for sound stemming from time modulations, allowing robust propagation along boundaries of topological metamaterials. This advancement enables cheaper, lighter devices with reduced battery power consumption, suitable for harsh environments.
Scientists combine piezoelectric aluminium nitride with ultralow-loss silicon nitride integrated photonics to create a hybrid circuit for on-chip acousto-optic modulation. The technology enables wideband actuation with ultralow electrical power, opening up new possibilities for precision-demanding applications.
Researchers at DGIST developed a novel dual-resonant method to maximize photon conversion in 2D materials. The method achieves a significant boost in signal intensity and frequency doubling, with potential applications in advanced photonic devices and cheaper diagnostic methods.
High-dimensional synthetic lattices emerge in photon-number space when excited by N indistinguishable photons, allowing for parallel quantum random walks with different numbers of steps on various graphs. This discovery enables the realization of an infinite number of lattices and graphs with distinct properties.
Researchers have created biocompatible lenses using spider silk, enabling large-area imaging of biological areas with high resolution. The lenses use dragline silk's unique properties to generate a photonic nanojet, suitable for biomedical applications.
Researchers developed a compact optical system using silicon photonics, significantly lowering production costs and enabling easy integration with traditional chip production. The technology addresses growing demands for multicolor laser lights in data centers, promising new opportunities in applications like optical clocks.
A team of researchers from UC Santa Barbara, Caltech, and EPFL has developed a new technology that simplifies and condenses complex optical systems onto a single silicon photonic chip. This breakthrough allows for easy integration with traditional silicon chip production, significantly reducing cost and improving performance.
A new photonic film inspired by fluffs on the longicorn beetle can reflect up to 95% of incoming solar radiation and emit infrared energy, achieving up to 5.1° C of passive cooling in direct sunlight. The film's efficiency is a breakthrough for efficient passive radiative cooling applications.
Physicists at the University of Würzburg have experimentally confirmed a new theory on topological metamaterials, which exhibit extraordinary properties. The study shows that all states localize at the edge of the material, a phenomenon known as the non-Hermitian skin effect.
The journal's editorial board selected three papers for best paper awards, showcasing innovative work in interdisciplinary applications, theoretical innovation, and photo-optical instrumentation design. The honorees include a paper on deep-learning-based object detection for monitoring underwater ecosystems and marine debris.
Researchers developed a new approach to build power-efficient and programmable integrated switching units on a silicon photonics chip. The technology enables bulk fabrication of generic optical circuits that can be programmed for specific applications.
Dresden scientists have created a periodic surface structure that repels water and ice, while also removing dirt particles solely by rolling water drops. This technology has potential applications in the automotive, food, and home appliance industries.
Researchers at the University of Bristol have developed a novel technique to generate high-quality single photons, paving the way for large-scale quantum photonics. The breakthrough enables the creation of scalable quantum photonics devices, which can solve complex problems beyond current supercomputers.
Researchers at EPFL have developed a new way to implement parallel FMCW LiDAR by using integrated nonlinear photonic circuitry. The technology enables up to 30 independent FMCW LiDAR channels, improving acquisition rates tenfold for autonomous vehicle applications.
Scientists discovered a new phenomenon allowing for three-dimensional RI modification in transparent materials, enabling the fabrication of compact photonic devices. The technology has potential to significantly miniaturize 3D photonics circuits, increasing optical quantum computer capacity.
Researchers from RIKEN developed transportable optical lattice clocks to make precise measurements of time dilation effect, validating Einstein's theory of general relativity. The study uses clocks on the base and top of the Tokyo Skytree tower to demonstrate a significant difference in clock speed due to gravity
New waveguide platforms enable compact solutions for ultra-high-performance systems, moving key components to chip scale from large tabletop instruments. These platforms support a range of applications, including spectroscopy, precision metrology, and computation.
UVphotonics presents novel UV LED developments with customizable wavelengths and compact size ideal for water purification, disinfection, medical diagnostics, and more. The company's product portfolio has been expanded to include integrated driver circuits and fully packaged UVC LEDs.
Researchers from ORNL and Purdue University successfully design a quantum frequency beam splitter using standard lightwave communications technology, enabling controlled photon interactions. The team also demonstrates a coincidence-basis controlled-NOT gate and completes the first demonstration of a frequency tritter.
Researchers from Chinese Academy of Sciences have successfully demonstrated diabolical points (DPs) in two strongly coupled microdisks with embedded quantum dots. The system enables a controllable phase shift between the microdisks, indicating potential applications in directional laser and quantum phase control.
The Online Photonics Meetup (POM) is a free, online conference that aims to improve access and sustainability in the field of photonics. Key findings include over 20 POM-hubs formed across four continents, which will facilitate local networking and community building among researchers and students.
Scientists demonstrate a new type of quantum device using a silicon carbide photonic integrated chip that can be tunable, paving the way for next-generation quantum information processing devices. The approach overcomes some of the fragility drawbacks of previously reported SiC platforms.
A research team at the University of Delaware has designed an integrated photonics platform with a one-dimensional metalens and metasurfaces, limiting information loss and enabling high signal transmission. The device demonstrates functionalities of Fourier transformation and differentiation, critical techniques in physical sciences.
The new AR head-mounted display delivers a realistic 3D viewing experience with an enlarged eye-box and increased field of view. It uses pixel beam scanning to keep images in focus regardless of distance, resulting in high-quality images without dispersion.
Researchers have developed a new method for creating mirror-symmetric axes in the polarizations of light, enabling complex manipulations useful in optical tools and technologies. The design, inspired by kaleidoscope symmetry, allows for tightly focused fields with various shapes and introduces elliptical polarization.
Scientists at Columbia University have successfully miniaturized medical imaging technology using a microchip, producing high-quality images with improved depth resolution. The breakthrough could lead to affordable handheld devices for disease diagnosis outside of hospitals in low-resource settings.
Researchers at Bar-Ilan University have developed a new concept that combines light and sound waves in standard silicon chips, achieving delays of tens of nano-seconds without introducing additional materials. This breakthrough enables the selective processing of sound waves, which is difficult for electronics and optics alone.
Researchers from the University of Pennsylvania have developed a reconfigurable topological insulator that can route photons around defects, increasing efficiency and speed. This breakthrough has potential applications in high-capacity data routing for future communication networks.
Researchers have developed an all-optical diffractive neural network that achieves unprecedented levels of inference accuracy, closing the performance gap with electronic neural networks. The design incorporates a differential detection scheme, which enables specialized sub-networks to recognize specific object classes.
Scientists from the University of Bristol have developed a new platform for quantum simulators, enabling the creation of large-scale photonic circuits. The team demonstrated that small-scale silicon photonic circuits can generate and process unprecedented numbers of photons, paving the way for quantum machines to surpass classical supe...
Researchers from Jena have developed a device using laser light to detect tumors, providing real-time information for surgeons. This compact microscope combines three imaging techniques and uses artificial intelligence to analyze tissue samples, promising faster and more reliable results than traditional frozen section diagnostics.