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plasmonics News
Plasmonic Antennas Could Deliver Ultrafast Pulses for THz Electronics
MUNICH, Germany, June 28, 2018 — In an experiment that combined the advantages of femtosecond nanophotonics with on-chip communications, researchers generated ultrashort electric pulses on a chip using metal structures (i.e., antennas) only a few nanometers in size, then ran the signals a few millimeters above the surface. The signals were then read out in a controlled manner. The researchers demonstrated that femtosecond optical pulses in the NIR could drive electronic on-chip circuits with a prospective bandwidth of
Carbon Nanotubes Emerge as Potential Quantum Light Sources
LOS ALAMOS, N.M., June 25, 2018 — Researchers report on the potential of carbon nanotubes as single-photon emitters for quantum information processing. A team at Los Alamos National Laboratory (LANL) is collaborating with colleagues at CNRS (The French National Center for Scientific...
Scientists Discover Light, Gold Thin Films Interaction
ATLANTA, June 5, 2018 — Physicists have devised a way to determine the electronic properties of thin gold films after they interact with light, a discovery that could further scientific understanding of how light affects materials. When the energy of a photon is...
Quantum-Enhanced Plasmonic Sensing Could Improve Biosensing, Chemical Detection
NORMAN, Okla., May 21, 2018 — Researchers used quantum states of light to enhance the sensitivities of plasmonic sensors. Results of the experiment could lead to enhanced ultratrace label-free plasmonic sensing for a range of applications. Plasmonic sensors have been shown to...
Ultrafast, Tunable Nanoparticle-Array Laser Could Speed Optical Switching
ESPOO, Finland, May 16, 2018 — Scientists combined organic dye material with metallic nanostructures (gold nanoparticles) to demonstrate ultrafast lasing with short, rapidly appearing laser pulses. Such ultrafast modulation speeds could be utilized in sensors and optical...
Engineered Glass Slide Enables Microscopic Thermal Mapping
BUFFALO, N.Y., May 15, 2018 — Using a coating of an optical exceptional point structure, researchers demonstrated a multifunctional microscope slide that supports real-time monitoring and mapping of temperature distribution and heat transport, in addition to conventional...
Chiral Nanostructures Could Be Used to Tailor Applications
BATH, England, May 3, 2018 — Scientists have modeled the interaction between light and twisted molecules as the molecules transition from left- to right-handed versions, or vice versa. Understanding the behaviors of these transitional forms could lead to improved design of...
Gaining Nanoscale Control over Quantum Systems
OAK RIDGE, Tenn., April 9, 2018 — Scientists at Oak Ridge National Laboratory (ORNL) and Vanderbilt University have developed methods to help control the “leaky,” dissipative behavior inherent in quantum systems and materials. To do so, they examined the quantum nature...
Plasmon Findings Could Pave-Way for Carbon-Based NIR Optoelectronic Devices
HOUSTON, March 19, 2018 — Researchers’ observation of gate-controlled quantum plasmons in aligned carbon nanotubes could pave the way for the development of carbon-based NIR optoelectronic devices and enable researchers to study the collective dynamic response of...
Team Uses Plasmonics to Improve QD LED Efficiency
DAEJEON, South Korea, Feb. 14, 2018 — Researchers have designed metallic nanostructure substrates that can lower production cost while improving the efficiency of quantum dot (QD) LEDs. For their design, the team exploited the phenomenon of so-called surface plasmonic resonances when...
Engineered Quantum Dots Could Help Lower Solar Power Cost
LOS ALAMOS, N.M., Jan. 8, 2017 — A window architecture that uses two different layers of low-cost colloidal quantum dots, tuned to absorb different parts of the solar spectrum, could be used to build double-pane solar windows that generate electricity more efficiently while...
Iridescent Spiders Provide Inspiration for Optics Design
AKRON, Ohio, Jan. 4, 2018 — Could the courtship habits of a tiny spider provide the basis for a novel design for miniature optics? An international research team studied the unique iridescent signal produced by miniature Australian peacock spiders during their courtship...
Researchers Manipulate Light to Make Optical Chip Invisible
BEER-SHEVA, Israel, Dec. 4, 2017 — Researchers have conceived a method that deflects and scatters light away from a ‘cloaking’ chip surface so it is not detected. The scattering fields of the object located on the cloak do not interact with the evanescent field, rendering...
Photodetector Uses Ultrathin Materials to Increase Efficiency
RIVERSIDE, Calif., Oct. 17, 2017 — A prototype developed using quantum mechanical processes could usher in a novel class of ultra-efficient photodetectors that would enable solar cells to turn the light they receive into multiple electrons. The prototype is based on the efficient...
Plasmonic Platform Enhances Photocatalysis
HOUSTON and CAMBRIDGE, England, Oct. 11, 2017 — Researchers have developed a way to build multifunctional nanoscale structures using aluminum nanocrystals. The structures have an aluminum core and are dotted with even smaller metallic islands. The nanocrystals are used as a base for creating...
Tunable Nanoparticle Layer Switches Between ‘Mirror,’ ‘Window’
LONDON, Sept. 13, 2017 — Researchers have made a reversible electrotunable filter that can change between a reflective ‘mirror’ and a transmissive ‘window’. This discovery could help scientists create special materials whose optical properties could...
Anapole Lasers Generate Ultrafast Pulses for Managing Nanoscale Optics
THUWAL, Saudi Arabia, Aug. 17, 2017 — Anapole lasers made from semiconductors shaped into energy-storing nanodisks could be used in the development of optically powered neurocomputers. According to researchers, the lasers could be made small enough to fit onto computer circuit boards...
Plasmonics Key to Photon Upconversion
HOUSTON, July 27, 2017 — A method to efficiently upconvert light combines plasmonic metals and semiconducting quantum wells to boost wavelength frequency. The novel photon upconversion technique is mediated by hot carriers in plasmonic nanostructures. Hot holes and hot...
An International Meeting of Optical Minds
Jul 24, 2017 — SPIE Optics + Photonics, scheduled for Aug. 6-10 at the San Diego Convention Center in California, is an international, multidisciplinary optical sciences and technology meeting that annually presents the latest research in optical engineering and...
New Laser Design Offers Multicolor Output of Tissue in Real Time
EVANSTON, Ill., July 14, 2017 — A cost-effective laser design that outputs multi-color lasing could allow encrypted, encoded, redundant and faster information flow in optical fibers, and allow multi-color medical imaging of diseased tissue in real time. The laser has been...
Photodetector Identifies Miniscule Differences in Wavelengths
PASADENA, Calif., June 30, 2017 — A novel technology that combines nanophotonics and thermoelectrics has the potential to detect different wavelengths of light, including visible and IR, at high resolution. The detector operates about 10 to 100 times faster than comparable...
Plasmonic Sensor Improves Detection of Cancer Biomarkers
CHAMPAIGN, Ill., June 23, 2017 — A novel plasmonic sensor has demonstrated the ability to detect the presence of the cancer biomarker carcinoembryonic antigen (CEA) to the magnitude of one nanogram per milliliter. This is a signi?cant improvement over current surface plasmon...
Laser World of Photonics: Bridging Research & Industry
Jun 12, 2017 — Laser World of Photonics — sponsored by Messe München International — provides a spotlight for promising newcomers, industry veterans and innovative companies. And with tens of thousands of people from countries around the globe attending the show,...
Interweaving Photonics Research, Industry
May 4, 2017 — Laser World of Photonics provides a spotlight for promising newcomers, industry veterans and innovative companies. And with tens of thousands of people from countries around the globe attending the show, that spotlight is huge. In 2015, the biennial...
Artificial Photocatalyst Used to Harness Light, Drive Chemical Reactions
LONDON, April 17, 2017 — An artificial photocatalyst material made from metal nanoparticles has been developed that could be used to harvest the sun’s energy more efficiently, for use in solar and other applications. Nanostructured materials that demonstrate plasmonic...
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May 2024
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