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Research & Technology News
Pulsed 'Laser-in-Liquids' Approach Speeds Catalyst Discovery
ROCHESTER, N.Y., Aug. 5, 2021 — A team at the University of Rochester showed the efficacy of pulsed lasers in accelerating research into chemical catalysts. The development of even a single catalyst material capable of triggering the arrangement and motion of the atoms needed to react favorably with the right chemical compounds can take months or even years using traditional wet chemistry procedures that use only chemical reactions — often in the liquid phase — to grow nanoparticles. When the right
Conventional Telecom Tech Relays Highly Precise Reference Signals
ZURICH, Aug. 4, 2021 — A Swiss research project has shown that high-precision reference signals can be sent via conventional telecommunications infrastructure. The project, part of the Swiss National Science Foundation’s Synergia program, involves researchers from...
ODT Reveals Insights into Promising Substitute for Petroleum-Based Plastics
DAEJEON, South Korea, Aug. 4, 2021 — Using 3D optical diffraction tomography (ODT), scientists at KAIST (formerly the Korea Advanced Institute of Science and Technology) gained insight into how the biodegradable polyester polyhydroxyalkanoate (PHA) accumulates in the cells of living...
Imaging Method Reveals the Way Plants Take Up Water
NOTTINGHAM, England, Aug. 3, 2021 — Researchers at the University of Nottingham report the development of a way to observe how plant roots take in and circulate water at the cellular level. The work could help to identify future drought- and flood-resistant crops. The inability to...
Quantum Metasurfaces Manipulate Free Photons
LOS ALAMOS, N.M., Aug. 3, 2021 — A team at Los Alamos National Laboratory proposes that modulated quantum metasurfaces can control all properties of photonic qubits. According to the team, such a breakthrough would affect the fields of quantum information, communications, sensing,...
Semiconductor Surface States Enhance Wavelength Conversion
LOS ANGELES, Aug. 3, 2021 — Electrical engineers from the UCLA Samueli School of Engineering have introduced a solution to enhance wavelength-conversion efficiency by exploring the phenomenon of semiconductor surface states. The work, which establishes a more efficient way of...
Optical Measurement Reduces Vibration in High-Power Lasers
BERKELEY, Calif., Aug. 2, 2021 — The Berkeley Lab Laser Accelerator (BELLA) Center at the U.S. Department of Energy’s Lawrence Livermore National Laboratory has developed and tested an optical system to precisely measure and control the position and pointing angle of...
Photothermal Process Irradiates Nanoparticles to Control Cell Activity
ST. LOUIS, Aug. 2, 2021 — Using nanoparticles as photothermal nanotransducers, scientists at Washington University in St. Louis demonstrated reversible modulation of electrical activity in excitable nerve and heart muscle cells. The biocompatible, minimally invasive approach...
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...
Researchers Develop Octave-Spanning Combs in Aluminum Nitride Resonator
DUBLIN, July 30, 2021 — Collaborators from Ireland and China have demonstrated a method to develop an octave-spanning coherent optical comb with a much lower pump power compared with other techniques that require complicated controlling equipment. The photonic system...
Plasma Coating Offers Cost-effective, Sustainable Alternative to Indium
SYDNEY, July 29, 2021 — Researchers from the University of Sydney have developed a low-cost, sustainable, and readily available technology that can dim the screens of electronic devices, antireflection automobile mirrors, and smart architectural windows at a fraction of...
Custom Near-Field Nanoscopy Tool Images Materials at Nanoscale
CAMBRIDGE, Mass., July 28, 2021 — A near-field infrared (IR) nanoscope and spectroscope, custom built by a research team at MIT, can quickly and economically probe the characteristics of diverse materials at the nanoscale. Also known as a scattering-type scanning near-field optical...
Nanostructures Allow High Harmonic Generation with Pulsed Lasers
ITHACA, N.Y., July 27, 2021 — Cornell University researchers have developed nanostructures that enable record-breaking conversion of laser pulses into high-harmonic generation. The work paves the way for new scientific tools for high-resolution imaging as well as the study of...
On-Demand Optical Singularities Strengthen Range of Applications
CAMBRIDGE, Mass., July 26, 2021 — A group led by Federico Capasso at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) has broadened the study of optical singularities to include to zero-dimensional (point) and 2D (sheet) optical singularities. The group...
Tunable Approach to Structural Color Powers Displays, Cuts Energy
LINKÖPING, Sweden, July 26, 2021 — Researchers at Linköping University have discovered a way to generate structural color that could potentially be applied to the manufacture of low-cost, energy-efficient displays and electronic labels. The method uses monochromic conducting...
Data Transmission System Uses 4-Core Optical Fiber, Sets Distance Record
TOKYO, July 22, 2021 — A research team led by Benjamin J. Puttnam at the National Institute of Information and Communications Technology (NICT) reported that it transmitted data over a distance of more than 3000 km (1860 miles) at a rate of 319 Tbit/s and a transmission...
Giant Terawatt Laser Takes Aim at Lightning Strikes from Atop Swiss Alps
DITZINGEN, Germany, July 21, 2021 — TRUMPF reports that the first experiments in the EU Laser Lightning Rod (LLR) project, in collaboration with the University of Geneva, are complete. The project uses an experimental high-repetition terawatt laser that the collaborators have placed...
Stable Coordination Nanosheets Enable Efficient Light-Energy Conversion
TOKYO, July 20, 2021 — A multi-institutional collaboration has developed coordination nanosheets (CONASHs) that have demonstrated the highest stability under air exposure reported to date, the researchers claimed. The work may find use in optoelectronic applications;...
Yale Team Produces Memory from Speckle Patterns
NEW HAVEN, Conn., July 20, 2021 — Researchers at Yale University have developed a way to significantly increase the memory of speckle patterns, the very complex patterns that result from shining a laser light onto an opaque sheet, such as paper, biological tissue, or fog. The method...
High-Efficiency PICs Accelerate Telecom Speeds to 40 Tbit/s
Duesseldorf, Germany, July 20, 2021 — Using multiple wavelengths to deliver information — all on a single PIC — collaborators from Dublin-based Pilot Photonics and the European photonics innovation incubator ACTPHAST 4.0 have found a way to pack more data into existing...
Optical Power Limiter Pushes Attack-Proof Quantum Communication Forward
SINGAPORE, July 19, 2021 — Researchers from the National University of Singapore (NUS) developed two methods to enable quantum key distribution (QKD) communications to avoid side-channel attacks — instances in which attackers exploit weaknesses in the setup of the...
Miniature Telescope Could Improve Lidar Performance, Advance Planar Optics
ORLANDO, Fla., July 16, 2021 — A University of Central Florida (UCF) team led by professor Shin-Tson Wu has developed a device made with cascaded liquid crystal (LC) flat optical elements, called a miniature planar telescope, that allows efficient, wide-angle, high-precision...
Method Measures Loss of Signal in Far-Infrared Instruments
UTRECHT, Netherlands, July 15, 2021 — Scientists from SRON and TU Delft have developed a method to measure the signal loss in far-infrared instruments, designing a signal-carrying so-called microstrip for DESHIMA-2, a far-infrared instrument for the Atacama Submillimeter Telescope...
CMOS-Compatible Spectrotemporal Compressor Could Support Ultrafast Optical Signal Processing
SINGAPORE, July 14, 2021 — Researchers at the Singapore University of Technology and Design (SUTD), the A*STAR Institute of Microelectronics, and MIT have developed an all-optical spectrotemporal pulse compression system. The system, which is built on a CMOS-compatible...
Inverted Material Design Brings Reflective Screen into Focus
GOTHENBURG, Sweden, July 14, 2021 — Tungsten trioxide is the core material in a new type of reflective screen — sometimes described as “electronic paper” — that offers optimal color display and uses ambient light to keep energy consumption to a minimum. The new...
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