Articles tagged with Plasmonics
Researchers developed nanostructures using MoOCl2, exhibiting polarization-controlled metal and dielectric resonances, with dielectric resonance exhibiting a higher quality factor and stronger photoemission signal
A new computational approach extends the Particle-in-Cell method with condensed-matter physics, enabling researchers to simulate a broader range of light–matter interactions in metals, semiconductors, and emerging quantum materials. This allows for more realistic predictions and optimizations in next-generation semiconductor and photon...
Researchers have developed a tiny, electrically tunable infrared filter that can distinguish between different materials and gases based on their spectral 'fingerprints'. This technology has the potential to enable handheld pollution detectors, compact multispectral cameras, and next-generation chemical sensing devices.
A UChicago research team developed a nanoplasmonic 'leaf' that harvests light energy to stimulate nerves and pace heartbeats in an animal model. The material was shown to have high performance levels and could potentially be used for new forms of therapy and human-computer interfaces.
Researchers created a microscopic, nonlinear light source that can be switched on, off or tuned to a particular intensity by an electrical 'knob'. The device is just 200 nanometers wide and has a controllable active area of two-to-six nanometers, enabling faster and more efficient optical switching.
Hyperbolic localized plasmon resonances were achieved in an anisotropic two-dimensional crystal, enabling tunable optical chirality and potential applications in miniaturized photonic components, spectroscopic sensors, and molecular fingerprinting.
The Ateneo de Manila University's ROSES Lab is the country's first facility for designing Photonic Integrated Circuits and training PIC designers. The lab has over 85 scientific publications and support from various global partners, positioning it as a driver of international collaboration in photonics research and innovation.
Researchers at Chalmers University of Technology have developed a compact, humidity-tolerant sensor that detects hydrogen gas in humid environments. The sensor uses platinum nanoparticles to measure the concentration of hydrogen by analyzing the thickness of a water film on its surface.
Scientists have developed a novel method to control the optical spectra of single-nanoparticle plasmons, enabling high-quality plasmonic hotspots in individual metal nanoparticles. By engineering the photonic substrate beneath the particle, researchers can reshape the electromagnetic environment and dramatically sharpen plasmon resonan...
Researchers overcome spatial resolution limit of sum-frequency generation (SFG) spectroscopy by utilizing plasmonic near-field confinement. This breakthrough enables direct visualization of nanoscale orientation heterogeneity in interfacial molecular domains.
Researchers at Princeton University have developed a new technique to convert low-energy light into high-energy LEDs, improving the ability to upconvert green light to blue or ultraviolet light. The method uses plasmonics to boost upconversion on a thin metal film, reducing the power needed by 19 times compared to previous setups.
Scientists create flexible surface plasmonic waveguides that maintain efficient signal transmission even when stretched, bent, or twisted. The new design enables wearable materials to seamlessly integrate advanced sensing and communication functions.
Researchers at the University of Illinois developed cryosoret nanoassemblies that enhance fluorescence signals, reducing detection limits for biomarkers. The new platform offers dual-mode interaction between electric and magnetic components of light, promising highly sensitive and tunable biosensing systems.
A team successfully observed hydrogen and deuterium molecules confined within a picocavity, revealing unprecedented detail about their vibrational modes. The study demonstrates a pronounced isotope-dependent effect, highlighting the potential for advanced molecular spectroscopy and nanoscale sensing.
Researchers from TIFR Hyderabad have successfully accelerated protons to hundreds of kilovolts using few millijoule lasers, repeating at a thousand times per second. This breakthrough enables high-repetition-rate laser-driven ion accelerators on university lab table tops without extreme laser intensities or pre-pulse suppression.
Scientists at UC Riverside are investigating plasmonic materials that can transfer energy when struck by light. Their findings could lead to sensors capable of detecting molecules at trace levels and other technologies with practical applications.
Naomi Halas' work has pioneered new insights into how light and matter interact at the smallest scales, leading to discoveries in biomedical applications such as cancer therapy and water purification. Her research on plasmonic catalysts could dramatically reduce energy required for chemical reactions.
Boron-doped diamonds exhibit plasmons, allowing electric fields to be controlled on a nanometer scale, for advanced biosensors and nanoscale optical devices. This discovery could pave the way for new types of biomedical and quantum optical devices.
Rice researchers have created a catalyst that leverages plasmonic photocatalysis to break down methane and water vapor into hydrogen and carbon monoxide without external heating. The new catalyst system enables on-demand, emissions-free hydrogen production, which could transform the energy industry.
The Rice-led MURI project aims to develop innovative single-atom reactor systems and analyze various chemical processes of strategic importance to the DOD. The researchers, led by Naomi Halas, seek to improve energy efficiency and reduce protocol intensity in chemical reactions.
Researchers have achieved data rates of up to 424Gbit/s using plasmonic modulators for free-space optical communication. This technology could provide high-speed, high-capacity data transmission for space missions with lower latency and less interference.
Researchers have developed an integrated optical sensor capable of detecting dopamine directly from unprocessed blood samples. This breakthrough enables low-cost and efficient screening tools for various neurological conditions and cancers.
A new type of sensor leverages exceptional points to achieve high sensitivity and reconfigurability. The novel design addresses limitations of traditional EP-based sensors by incorporating spoof localized surface plasmon resonators, allowing for dynamic reconfiguration of EP states across a wide frequency range.
This article discusses ultrafast plasmonic materials for all-optical switching and pulsed lasers, highlighting their potential in photonics applications. Researchers have explored various ultrafast plasmonic systems, including metasurfaces made of noble metals and phase-change hybrid materials.
Rice University researchers have developed a transformative approach to harnessing the catalytic power of aluminum nanoparticles by annealing them in various gas atmospheres at high temperatures. This allows for modifying the structure of the oxide layer, making the nanoparticles versatile tools for different applications.
A UCF-developed technology uses a plasmonic platform to detect the chirality of molecules with high precision, enabling more accurate drug development and therapies. The platform improves upon current methods with sensitivity nearly 13 orders of magnitude greater.
Researchers developed a stable air-stable plasmonic reduction catalyst that enhances ethene production from acetylene using visible light. The catalyst achieves an efficiency of 320 mmol g<sup>−1</sup> h<sup>−1</sup> with 90% selectivity, surpassing known plasmonic and thermal catalysts.
GIST researchers develop tunable optical properties in nanostructures, enabling applications in wound healing, drug delivery, and secure verification. A clock-inspired design featuring magnesium nano-rotamers demonstrates programmable polarization-resolved coloration.
A KAIST research team developed an anti-icing film coating technology using gold nanoparticles and cellulose nanocrystals. The film can uniformly pattern gold nanorods in quadrants through simple evaporation, achieving enhanced plasmonic photothermal properties.
Researchers have developed a new form of microscopy that can probe details in an object's surface using evanescent waves. The technique, which detects radiation emitted by the object itself, has been used to examine thermally excited evanescent waves in dielectric materials with nanoscale precision.
Researchers at Chalmers University of Technology developed 3D-printed plasmonic plastic, enabling the mass production of optical sensors that can detect hydrogen gas. The composite material has unique optical properties, allowing it to filter out molecules except hydrogen, making it ideal for various applications.
A research team at Göttingen University has developed plasmonic molecules from nanoparticles using a novel process that precisely arranges the particles. This breakthrough enables the creation of large quantities of these compounds, which can be used for various functions in nanotechnology.
Scientists have discovered a way to control site-specific nonlinear optics using plasmonic nanocavities. The study found that the broadening of nonlinear optical responses can be achieved by manipulating both nanometer- and micrometer-scale structures in tip-substrate nanocavities.
Researchers developed a novel 3D printed nano optical security label with 33 possible combinations, utilizing higher dimensional structured light and incoherent white light illumination. This technology has the potential to revolutionize anti-counterfeiting methods and provide a powerful platform for advanced information security.
A UCF researcher has developed the first environmentally friendly, multicolor alternative to pigment-based colorants using structural colors from butterflies. The new plasmonic paint is lightweight, non-toxic, and reflects the entire infrared spectrum, promising significant energy savings and reduced global warming.
Scientists at Rice University, Stanford University, and UT Austin have developed a mechanism to generate solvated electrons through plasmon resonance, making it easier to turn light into these clean, zero-byproduct chemicals. This breakthrough could lead to new ways of driving chemical reactions and reducing greenhouse gas emissions.
A team at City University of Hong Kong has developed a novel approach to converting environmental temperature fluctuations into clean chemical energy using pyroelectric catalysis. By combining pyroelectric materials with localized plasmonic heat sources, the researchers achieved significantly faster and more efficient pyro-catalytic re...
A research team from USTC has designed a novel photodiode that achieves low dark current, high bandwidth, and improved responsivity. The device uses plasmonic resonance to enhance absorption efficiency, leading to increased signal quality for high-speed optical communication networks.
Researchers have developed a method for centimeter-scale color printing using grayscale laser writing, achieving vivid and fine-tunable colors. The technique leverages pixelated optical cavities to generate transmission colors with a transmission efficiency of 39-50%.
Rice University engineers have developed a method to convert hydrogen sulfide into high-demand hydrogen gas and sulfur in a single step using gold nanoparticles. The process gets all its energy from light, offering a cost-effective alternative to traditional remediation methods.
Researchers developed a technology to create nonspherical nanoparticles through ion implantation, enabling the growth of custom shapes and controlling their properties. This allows for the creation of metamaterials with improved optical absorption and energy conversion efficiency.
Scientists at Duke University have engineered materials capable of producing tunable plasmonic properties while withstand extremely high temperatures. The new high-entropy carbides can achieve improved communications and thermal regulation in aerospace technologies, including satellites and hypersonic aircraft.
Researchers developed a novel method to visualize proteins secreted by cells with high resolution, using plasmonic-fluor technology. The FluoroDOT assay is versatile, low-cost and adaptable, providing a more comprehensive look at these proteins.
Researchers at Columbia University and Rover Diagnostics have developed a low-cost, portable platform that provides RT-PCR results in 23 minutes, matching laboratory-based tests. The system uses plasmonic nanoparticles to achieve real-time and multiplexed RT-qPCR on clinical specimens.
Researchers demonstrate a new platform for guiding compressed mid-infrared light waves in ultra-thin van der Waals crystals, enabling strong light-matter interactions and improved detection limits. The use of atomically-smooth gold crystals provides a low-loss environment for the propagation of phonon-polaritons.
Researchers at Duke University have developed a new design for plasmonic metasurfaces that greatly expands their frequency range while also making them more robust against the elements. The new fabrication process allows for the use of a wide variety of shapes, opening up new possibilities for applications such as super cameras.
Researchers have realized giant enhancement of two-dimensional excitonic upconversion using doubly resonant plasmonic nanocavity. The system boosts upconversion intensity by over 1000-fold and reduces saturation threshold power by 2-3 orders. This achievement lays a solid foundation for net optical refrigeration.
Researchers at Aalto University developed a method to produce colors using gold nanocylinders suspended in a gel, controlled by custom DNA molecules. The technique uses polarized light to transmit specific colors depending on the orientation of the nanoparticles.
A team of researchers from PNNL and UW successfully designed a bio-inspired molecule that directs gold atoms to form perfect nanoscale stars. The work is an important step toward understanding and controlling metal nanoparticle shape and creating advanced materials with tunable properties.
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.
Researchers designed a nanobridged rhombic antenna supporting both dipolar and high-order plasmonic modes, enabling multiband detection with high sensitivity to molecules. Spatially superimposed hotspots boost local fields for both bands, enabling new strategies for multiband MIRAs.
Researchers explored superoscillations for nanoimaging and nanometrology, achieving subwavelength focusing and imaging beyond the traditional diffraction limit. This technology combines with deep learning algorithms to increase resolution and accuracy in micro-nano displacement detection.
Researchers used ultrafast electron microscopy to study gold nanoparticles on graphene, discovering an unusual phenomenon where the plasmonic field concentrates near the edge region. This breakthrough has significant implications for the development of new sensors and quantum devices.
Researchers developed a plasmonic isothermal recombinase polymerase amplification (RPA) array chip that can detect 8 types of pathogens, including bacteria and viruses, in 30 minutes. The technology has been patented in Korea, the US, and China, and is planned to be applied for approval from the Ministry of Food and Drug Safety.
Scientists at Tomsk Polytechnic University have discovered a way to synthesize cyclic carbonates from atmospheric CO2 using sunlight and gold nanoparticles. This method is more efficient and environmentally friendly than traditional methods, which require high temperatures and pressure.
Plasmonic tweezers facilitate trapping of micro- and nanostructures using hotspots smaller than the free-space wavelength, providing higher precision. The technique has expanded applications in fields such as biology, chemistry, and physics.
A new plasmonic metasurface achieves unprecedented centimeter-scale efficiency, boosting absorption and emission of light. This design overcomes limitations of nanoscale properties, enabling practical applications in ultrafast optoelectronics devices and fluorescence-based biosensors.
A Duke University research team has made a major advance toward ditching fiber in fiber optics by capturing visible and infrared light for high-speed wireless internet. The researchers replicated plasmonic speed enhancements on macroscopic devices, achieving speeds of two gigabits per second.
The study creates a new metal-like semiconductor material with excellent plasmonic resonance performance using an electron-proton co-doping strategy. The material achieves a metal-like ultrahigh free-carrier concentration, leading to strong and tunable plasmonic fields.
Scientists at Rice University developed hybrid particles combining plasmonic nanoparticles with flexible polymer coatings to harness light energy. The resulting nanoparticles deliver improved efficiency in transferring energy from the metal core to the coating.