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Research & Technology News

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 polymer films, which the researchers prepared on metallic surfaces (that is, mirrors) using vapor phase polymerization (VPP) and a single ultraviolet (UV) light patterning step. “We have developed a simple method to produce structural color
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...
Team Develops Largest-of-Its-Kind Quantum Simulator
CAMBRIDGE, Mass., July 14, 2021 — A team of physicists from the Harvard-MIT Center for Ultracold Atoms and other universities has developed a special type of quantum computer known as a programmable quantum simulator capable of operating with 256 quantum bits, or...
Cranial Windows Allow Simultaneous Imaging of the Brain’s Different Regions
WASHINGTON, D.C., July 13, 2021 — Researchers from Tsinghua University have developed a way to image multiple areas of the brain at the same time, both on the brain’s surface and deep inside the brain. Since brain processes often span multiple regions of the brain, researchers...
3 Combined Techniques Boost Imaging Precision
CHAMPAIGN, Ill., July 12, 2021 — Researchers from the University of Illinois Urbana-Champaign, working with domestic and international collaborators, have combined three imaging techniques to detect the timing and location of brain responses to a stimulus. The researchers said the...
Opto-Refrigerative Tweezers Overcome Heat Damage to Particles
AUSTIN, Texas, July 12, 2021 — A tweak to optical tweezer technology introduced by researchers at the University of Texas at Austin fixes the problem of heat that affects the tool. The prolonged interaction with the laser beam can alter molecules and particles or damage them with...
Cloud-based Software Controls Laser Systems
AACHEN, Germany, July 8, 2021 — A data center-based system to control and monitor industrial processes has been introduced by a team at RWTH Aachen University, in cooperation with Fraunhofer ILT. The concept for the system is based on a project for controlling laser systems...
Wearable Sensor Measures Light Emission on Skin to Monitor Tissue Oxygenation
WASHINGTON, D.C., July 8, 2021 — Researchers have combined an oxygen-sensing film and machine learning to create a wearable sensor capable of measuring tissue oxygenation through a person’s skin. Developed by researchers at the Wellman Center for Photomedicine at...
NIST’s Comb Systems Measure All Primary Greenhouse Gases in the Air
GAITHERSBURG, Md., July 7, 2021 — National Institute of Standards and Technology (NIST) researchers upgraded their laser frequency-comb instrument to simultaneously measure nitrous oxide, carbon dioxide, water vapor, and the major air pollutants ozone and carbon monoxide. The NIST...
Researchers Control Brain States Via Photoswitchable Molecule
BARCELONA, Spain, July 6, 2021 — A team of scientists in Spain has directly photomodulated brain-state transitions in vivo using a photoswitchable molecule that was developed previously by researchers at the Institute for Bioengineering of Catalonia (IBEC). By applying a...
Laser, Microcomb Integrated on Single Scalable Chip
SANTA BARBARA, Calif., July 5, 2021 — A collaboration between John Bowers from the University of California, Santa Barbara (UCSB) and Tobias J. Kippenberg from École Polytechnique Fédérale de Lausanne (EPFL) has yielded an integrated on-chip semiconductor laser and...
Lens-Free Fluorescence Microscope to Achieve High Throughput, Resolution
LEUVEN, Belgium, July 5, 2021 — A fluorescence microscope being developed by imec researchers will be able to achieve high throughput and high resolution, without a lens component. The technology could significantly speed up next-generation DNA sequencing and cellular research, as...
Algorithms Offer Improved Color Correction
HANGZHOU, China, July 2, 2021 — A set of algorithms developed at Westlake University in China enable devices to record and display colors in digital images in a more realistic way. The approach could improve today's commercially available displays and enhance the sense of reality...
CEA-Leti Names CEO
GRENOBLE, France, July 1, 2021 — The technology research institute CEA-Leti named Sebastien Dauvé CEO, effective July 1. Dauvé succeeds Emmanuel Sabonnadière, who had served as CEO since November 2017. Dauvé joined CEA-Leti in 2003. In 2016 he became...
Novel Metasurface Enables Unprecedented Laser Control
CAMBRIDGE, Mass., July 1, 2021 — Harvard researchers have introduced a single metasurface that can effectively tune the different properties of laser light, including wavelength, without additional optical components. The metasurface can split light into multiple beams and control...
Thin-Film GaAs Photovoltaic Cell Achieves Record Efficiency
FREIBURG IM BREISGAU, Germany, June 30, 2021 — Researchers at Fraunhofer Institute for Solar Energy Systems ISE have achieved a conversion efficiency of 68.9% for a III-V semiconductor photovoltaic cell based on gallium arsenide (GaAs) exposed to laser light of 858 nm. The mark is reportedly the...

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