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plasmonics News
Ultrasensitive Chirality Detector Could Improve Drug Design and Efficacy
ORLANDO, Fla., April 1, 2024 — Researchers at the University of Central Florida (UCF) are investigating ways to enhance the development of new drugs and therapies. A tunable plasmonic platform from UCF, which enables accurate detection of chiral molecules, could help pharmaceutical companies and biomedical labs classify enantiomers with speed and precision, leading to more efficient drug development. The platform for sensing chiral molecules is the work of a team led by professor Debashis Chanda at the UCF Nanoscience
Multispectral Terahertz Imaging System Incorporates Neural Network
LOS ANGELES, Jan. 29, 2024 — Researchers at UCLA have developed a focal plane array (FPA) capable of supporting real-time multispectral terahertz (THz) video in 3D. According to the team, led by UCLA professors Mona Jarrahi and Aydogan Ozcan, this is the first time a terahertz...
Optical-Plasmonic SERS Platform Clocks Molecular Systems
HONG KONG, Jan. 10, 2024 — An optical plasmonic tweezer-controlled surface-enhanced Raman spectroscopy (SERS) platform developed by Hong Kong University of Science and Technology (HKUST) enables efficient, high-throughput, single-molecule characterization in solution. It has...
UK’s Central Laser Facility Receives Over $100M for Planned Upgrade
DIDCOT, England, Oct. 5, 2023 — The Science and Technology Facilities Council (STFC) Central Laser Facility (CLF) was awarded £85 million ($103.2 million) by UK Research and Innovation for an upgrade initiative that includes construction of the Vulcan 20-20 laser, which is...
Simulated Technique Cuts Losses in Optical Resonators
ESPOO, Finland, Sept. 13, 2023 — Optical resonators are used to control light in a range of photonic applications, from pocket-size laser pointers to quantum computers. When a resonator experiences optical loss, its ability to trap and concentrate photons deteriorates, reducing its...
Complex Frequency Waves Counter Optical Losses in Superimaging
HONG KONG, Sept. 11, 2023 — Superlenses made of plasmonic materials and metamaterials can image features at the subdiffraction scale. However, intrinsic losses restrict the image resolution of superlenses, hindering their widespread use. To compensate for optical loss in...
Nanoscale Spectroscopy Supports Optoelectronic Device Architectures
POHANG, South Korea, April 20, 2023 — 2D semiconductors based on heterostructures are attracting attention as potential next-generation materials for the electronics industry. However, it is challenging to commercialize these materials because the physical properties of their...
Reusable Substrate Enhances Raman Signal by Factor of 50
KIEL, Germany, March 31, 2023 — Materials scientists at Kiel University have developed a photoinduced enhanced Raman spectroscopy (PIERS) method to detect analytes at concentrations one to three orders of magnitude lower than that which can be achieved using classical...
Signal Enhancement Enables Study of Label-Free Proteins
MARSEILLE, France, Jan. 26, 2023 — Researchers at Institut Fresnel have developed a technique to detect the ultraviolet-autofluorescence signal in single proteins, opening the way for the label-free study of thousands of proteins whose natural fluorescence cannot be detected using...
Plasmonics-Based COVID-19 Test Delivers Results in POC Settings
NEW YORK, Aug. 17, 2022 — Researchers at Columbia Engineering and Rover Diagnostics, a Columbia Technology Ventures company, used plasmonic nanoparticles with compact optics to develop a real-time, multiplexed, reverse-transcriptase quantitative polymerase chain reaction...
Laser Blazes New Milestone Toward Self-Sustaining Fusion Energy
LIVERMORE, Calif., Feb. 3, 2022 — Scientists at Lawrence Livermore National Laboratory’s National Ignition Facility (LLNL NIF) said that, for the first time, physicists have engineered and tested a laser system in which fusion itself — as opposed to external heating...
Photonic Technology Converts Greenhouse Gases into Clean Energy
THE HAGUE, Netherlands, Jan. 25, 2022 — The European consortium SPOTLIGHT is developing a process that uses sunlight and LEDs to turn carbon dioxide and green hydrogen into clean energy products such as methane gas and methanol liquid fuel. Using a photonic device, the SPOTLIGHT...
Laser Nanosoldering Boosts Conductivity of Nanoelectrodes
GUANGZHOU, China, Jan. 19, 2022 — Researchers at Jinan University and the Chinese Academy of Sciences developed a plasmon-enhanced laser nanosoldering technology to increase the electrical conductivity of silver (Ag) nanowires that are fabricated using femtosecond laser direct...
Magnetically Controlled Nanolasers Protect Optical Signals
ESPOO, Finland, Jan. 4, 2022 — A lasing control mechanism, introduced by a research team at Aalto University, enables users to control plasmonic nanolasers remotely, using a magnetic field. Until now, the only way to switch plasmonic nanolasers on and off has been through direct...
Light-Based and Lightweight, Aerogel Photocatalyst Enables Efficient Hydrogen Production
ZURICH, Dec. 22, 2021 — With appropriate pretreatment, aerogels could serve as efficient, visible light-active photocatalysts for industrial use. The Laboratory for Multifunctional Materials at ETH Zurich, headed by professor Markus Niederberger, demonstrated that...
Compact Biosensor Offers Continuous Detection of Environmental Estrogens
GUANGZHOU, China, Oct. 5, 2021 — A plasmonic optical fiber biosensor, developed by researchers at Jinan and Tsinghua universities, uses light-matter interaction and advanced surface chemistry to achieve ultrasensitive detection of environmental estrogens (EEs). The compact,...
LLNL Experiment Reaches Threshold of Nuclear Fusion Ignition
LIVERMORE, Calif., Aug. 17, 2021 — An experiment at the Lawrence Livermore National Laboratory (LLNL) National Ignition Facility (NIF) has triggered ignition for the first time. Ignition is the process that amplifies energy output from nuclear fusion and that could provide an avenue...
Injectable Biosensors Convert Brain Activities into Detectable Optical Signals
WASHINGTON, D.C., July 30, 2021 — Technology for monitoring neuronal activity noninvasively could allow scientists to study the brain without the need for surgery or implanted devices. The newly developed nanotechnology, called NeuroSWARM3 by its inventors at the University of...
Silver Ions’ Dispersion from Alloys Benefits Optical Sensors, Other Applications
HOUSTON, April 27, 2021 — A study led by Rice University and the University of Duisburg-Essen in Germany used hyperspectral dark-field imaging microscopy to reveal the multistep mechanism that causes silver ions to dissipate from gold-silver alloy nanoparticles. Gold-silver...
Gold Nanoparticle Plasmon Coupling Illuminates Thermal Sensing Possibilities
RALEIGH, N.C., March 31, 2021 — Researchers from North Carolina State University have described a method for achieving desirable optical properties by stretching shape-memory polymers embedded with gold nanoparticle clusters so as to alter their plasmon-coupling capabilities. The...
Light-Controlled Enzymes Show Potential in Medicine, Industry
SÃO PAULO, March 19, 2021 — Research conducted at the University of São Paulo’s Chemistry Institute demonstrated the utility of near-infrared and infrared light for use as catalysts in the control of enzymes. The work holds implications for the noninvasive...
Study of Acoustic Graphene Plasmons Heralds Improvements for Optoelectronics
DAEJON, South Korea, March 18, 2021 — Researchers from Korea Advanced Institute of Science and Technology (KAIST), with domestic and international collaborators, demonstrated direct near-field optical imaging of acoustic graphene plasmon (AGP) fields, using a sensitive scattering-type...
Oxford Instruments Plasma Technology Relocating
BRISTOL, England, Feb. 11, 2021 — Oxford Instruments Plasma Technology is moving to a new manufacturing facility in Bristol, England. The company is a provider of advanced wafer-processing solutions for the semiconductor industry. The new facility will allow the company to remain...
LIBS, 2D Spectral Imaging Combine to Improve Isotopic Measurements
WASHINGTON, D.C., Feb. 3, 2021 — Pacific Northwest National Laboratory researchers have improved laser-induced breakdown spectroscopy (LIBS) measurements of hydrogen isotopes in what they characterized as “industrial important” alloys. In optimizing an ultrafast...
Extra Level Helps Convert Light Energy into Surface Waves on Graphene with Increased Efficiency
MOSCOW, Nov. 17, 2020 — Collaborating physicists from two Russian universities have successfully converted light energy into surface waves on graphene at nearly 90% efficiency. A so-called laser-like energy conversion process with collective resonances, and semiconductor...
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May 2024
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