Articles tagged with Nanoantennas
Researchers developed a tiny device that creates radially polarized photons at room temperature, improving the efficiency of devices using structured light. The breakthrough enables advancements in communication and optical technology, paving the way for new possibilities in secure communication and quantum applications.
The team uses a continuous-wave laser to create ultrashort electron pulses, allowing for attosecond time resolution. They investigate nanophotonic phenomena and film electromagnetic processes inside waveguide materials, opening up new developments in photonic integrated circuits and metamaterials.
Researchers at Kyoto University have developed nanoantennas that significantly increase the efficiency and photoluminescence of white LEDs by replacing aluminum with titanium dioxide. This breakthrough enables the creation of intensely bright yet energy-saving solid-state lighting solutions.
Researchers at City University of Hong Kong have successfully developed a novel Vacuum Ultra-Violet (VUV) meta-lens, which can generate and focus the VUV light. The focused VUV light source enables nanolithography, material processing, and advanced manufacturing applications.
Scientists at Linköping University have created optical nanoantennas using conducting polymers that can switch between metallic and dielectric properties. The researchers achieved electrical control of the nanoantennas, enabling gradual tuning by applying external bias potentials.
Gold nano-antennas concentrate light to enhance signal from nanoscale region, creating orange and red flashes of fluorescence. The phenomenon allows for observation of atomic scale dynamics without sophisticated microscopes.
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 developed a strategy to amplify fluorescence signals using DNA probes and nano-antennas, enabling the detection of biomarkers in low concentrations. This technology has the potential to enable medical screening on patients without laboratory analysis.
Researchers demonstrate fully controllable local-field interferences in nanoantennas, enabling the creation of dynamically tunable Fano lineshapes with nearly vanishing Fano dips. The spectral dispersion can exhibit low-background and strong suppression of local-field intensity at Fano dips.
A team of scientists from ITMO University developed a method to create optical chips in a Petri dish using gallium phosphide as a material for the waveguides. The new chip elements are three times smaller than those working in the IR spectral range, enabling compact and affordable production of lasers and waveguides.
Researchers have developed nanoantennas that can generate and manipulate spin waves in magnetic materials, enabling the creation of miniaturized analog computing systems. The breakthrough allows for controlled shape and propagation of spin waves, making them ideal for developing energy-efficient computing systems.
Scientists at Linköping University develop optical nanoantennas made from a conducting polymer, allowing for controllable nano-optical components. The antennas react to light and can be switched on and off, making them suitable for applications such as smart windows.
Researchers have developed ultrasensitive nanoscale optical probes to monitor the bioelectric activity of neurons and other excitable cells. The new technology could enable scientists to study neural circuits at an unprecedented scale, leading to powerful brain-machine interfaces.
Researchers from FEFU and international colleagues develop a multi-purpose sensor using nanotextured gold film, enabling trace-level molecule detection in liquid and gas environments. The sensor's sensitivity is attributed to resonant optical properties of nanoantennas created by femtosecond laser printing.
University of Illinois researchers have created a new framework for nanoantenna light absorption, enabling the detection of individual biomolecules and catalyzing chemical reactions. The breakthrough has potential applications in cancer diagnostics, quantum computing, and novel biochemistry methods.
Researchers have developed an analytical tool to design nano-antennae that can amplify electromagnetic fields of desired frequencies or polarizations. The corkscrew-shaped nano-antennae are highly sensitive to light, allowing for novel applications in information technology and sensor technology.
The new bimetalic nanoantenna design generates three times more thermoelectric voltage and is 1.3 times more efficient than classic dipole nanoantennas for solar energy harvesting. This innovation has potential applications in waste heat energy harvesting, sensing, and other fields.
Scientists developed all-dielectric nanoantennas that enable fast temperature-feedback identification of viruses and explosives at low concentrations. The technology allows accurate tracing and control of local temperatures during laser-induced chemical reactions.
Researchers from ITMO University developed a controlled light source based on nanodiamond, doubling emission speed without additional nanostructures. The artificial defects in the diamond crystal lattice enable efficient control of light emission, crucial for quantum computers and optical networks.
A research group from ITMO University combined a nanoantenna with a light source in a single nanoparticle, generating, enhancing and routing emission. The scientists discovered that the emission can be enhanced if its spectra match with Mie-resonant mode, making them efficient light sources at room temperature.
Researchers designed and tested plasmonic nanoantenna arrays to enhance fluorescence emission from contaminants in water, leading to a six-fold increase. The arrays can be used to develop highly integrated multi-wavelength sensors for low-cost and portable water quality monitoring.
Researchers from Kazan Federal University and international partners successfully amplified a localized optical signal within a titanium nitride nanoantenna. The phenomenon is based on the nonlinear interaction of surface plasmon-polaritons and localized Stokes waves.
Scientists from the University of Melbourne and Huazhong University of Science and Technology have successfully trapped individual quantum dots using an all-silicon nanoantenna. This innovation has the potential to improve the efficiency of nanosensors in detecting biomarkers at low concentrations.
Researchers systematically examine available high-index materials for their resonances in visible and infrared ranges. Crystalline silicon is identified as the best material for dielectric antennas operating in visible range, while germanium outperforms other materials in infrared band.
Researchers developed a technique to efficiently control light in waveguides by decorating them with nano-antennas, achieving record-small footprints and broad wavelength ranges. This innovation has the potential to transform optical communications and signal processing, enabling faster and more powerful optical chips.
Researchers developed a silicon nanoantenna that scatters light in a particular direction depending on the intensity of incident radiation. The nanoantenna allows for the dynamic modification of its properties, enabling faster control over light propagation and paving the way for ultrafast processing of optical information.
Researchers have demonstrated silicon nanoparticles that can manipulate and switch light, enabling ultrafast all-optical signal processing in optical communication systems. The nanoantennas can transmit, reflect, or scatter incident light in a specified direction, showing potential for high-speed data transmission.
Scientists from ITMO University developed a new technique to create planar arrays of hybrid nanoantennas, enabling precise control over light manipulation at the nanoscale. The technology promises to increase data storage capacity and pave the way for high-throughput fabrication of optical nanodevices.
Researchers from the University of Illinois have developed a simplified approach to fabricating flat, ultra-thin optics using plasmon-assisted etching. This technique enables simple etching without hazardous chemical agents, greatly simplifying design iteration steps and reducing workload in cleanrooms.
French researchers have developed metamaterial resonators that allow emission in the infrared to be tuned through geometry, enabling the encoding of images. This technology has potential breakthrough applications in infrared televisions, biochemical sensing, and anti-counterfeit devices.
Researchers develop cubic nanoantennas made of insulating materials, overcoming heating and fabrication challenges, enabling applications in biomedicine, nanolasers, and photovoltaics. The antennas have the potential to measure food safety, identify pollutants, diagnose cancer, and transmit data with ultrafast processing.
A joint international research project has led to a breakthrough in terahertz spectroscopy, enabling the analysis of nanocrystals and molecules at extremely low concentrations. Researchers successfully increased technique sensitivity using nanoantennas, allowing for enhanced absorption and spectroscopic signature retrieval.
Researchers successfully measured the vibrational motion of a single molecule for the first time, showing distinct behavior from larger molecular groups. This achievement demonstrates ultrafast spectroscopy at the single-molecule level, enabling new possibilities for quantum computing and single-molecule photonics.
A team from the University of Illinois developed a novel, tunable nanoantenna that enables plasmonic field enhancement to actuate mechanical motion. The researchers demonstrated tunability down to 5nm and showed that an electron beam can be used to deform individual p-BNAs or groups with velocities as large as 60 nm/s.
Researchers developed graphene-based nano-antennas that can connect devices powered by small amounts of scavenged energy, enabling nanoscale communication. The antennas operate at lower frequencies than traditional metallic components, reducing power needs.
A team of Penn engineers has created a new infrared sensor using nanoantennas, allowing for more sensitive detection and compact designs. The device works by connecting mechanical motion to temperature changes, reducing the need for bulky equipment and expensive materials.
Researchers embed artificial membranes with billions of nanoantennas to study cell signaling patterns and molecular interactions. The technique boosts fluorescent signals, enabling tracing of individual proteins and enhancing biomolecule imaging.
Researchers at University of Illinois have demonstrated the use of arrays of gold Bowtie Nanoantenna Arrays for multipurpose optical trapping and manipulation of submicrometer- to micrometer-sized objects. This enables highly efficient, optical tweezers with low-input power densities, useful for optofluidic applications and manipulatin...
Researchers have created a simple nanoantenna that directs red and blue colours in opposite directions, defying wavelength size limitations. This discovery can lead to the development of optical nanosensors for detecting very low concentrations of gases or biomolecules.
Researchers have engineered bowtie-shaped devices that focus and sort light in tiny spaces, enabling the creation of ultrafast detector arrays. By introducing asymmetry, scientists can control the plasmonic properties of these devices to produce filters with specific colors or energies.
Researchers at KIT have successfully manufactured the world's smallest optical nanoantennas from gold using electron beam lithography. These nanoantennas enable rapid information transmission and are considered a major basis for new optical high-speed data networks.
Researchers at Idaho National Laboratory developed a way to produce plastic sheets containing billions of nanoantennas that collect heat energy generated by the sun. The technology has potential to be mass-produced on flexible materials, powering devices with higher efficiency than traditional solar cells.
Gold bowties may allow for the production of detailed images of proteins, DNA molecules, and synthetic nano-objects. The device amplifies near-infrared light into a concentrated speck of light, improving resolution by a factor of 10 compared to conventional microscopes.
The Purdue team has developed a new type of antenna that can detect a single molecule using electromagnetic radiation. This innovation could lead to detectors millions of times more sensitive than current technology, with potential applications in medical diagnostics and homeland security.