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Research & Technology News

Reusable Light-Writing Solution Reduces Paper Waste
RIVERSIDE, Calif., June 14, 2022 — A team led by professor Yadong Yin at the University of California, Riverside formulated a light-sensitive coating material for rewritable light-printing. The material is made from doped titanium dioxide (TiO2) nanocrystals that are synthesized in a single-step process. When the nanocrystals are applied to a glass or paper substrate, they form a uniform coating that can be written on with UV light. The writing can be erased by exposing it to oxygen. The method used to produce the
Deep Learning Enables Structured Light 3D Polarimetric Imaging
NANJING, China, June 13, 2022 — Researchers at Nanjing University of Science and Technology demonstrated a dual-frequency multiplexing fringe projection profilometry (FPP) technique that is enabled by deep learning. The researchers said their approach to FPP, which is a noncontact...
SERS-Based Nanosensor Detects Pesticides on Fruit
SOLNA, Sweden, June 13, 2022 — Researchers at the Karolinska Institutet in Sweden developed a nanosensor based on surface-enhanced Raman spectroscopy or scattering (SERS). The proof-of-concept method uses flame-sprayed silver nanoparticles to increase the signal of chemicals....
Yao Fan Awarded 2022 Teddi C. Laurin Scholarship
PITTSFIELD, Mass., June 10, 2022 — Yao Fan, a doctoral student at Nanjing University of Science and Technology (NJUST), was awarded the 2022 Teddi C. Laurin Scholarship for her contributions to the field of optics and photonics. Fan’s research interests include quantitative...
Single-Crystal Diamond Mirrors Stand Up to Continuous-Wave Laser Powers
CAMBRIDGE, Mass., June 10, 2022 — Researchers at Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) built highly reflective mirrors that direct the beams from high-powered continuous-wave (CW) lasers without incurring damage. The mirrors are made from...
Interferometry Provides Basis for LWIR Remote Thermal Imaging
PERTH, Australia, June 9, 2022 — Prototypes of microelectromechanical systems (MEMS)-based, fixed-cavity Fabry-Pérot interferometers (FPIs), developed by researchers at the University of Western Australia, could be used to enable lightweight, field-portable spectroscopic...
Ring Resonator Pushes Photonic Sensing to Quantum Limit
BRISTOL, England, June 9, 2022 — A team led by researchers at the University of Bristol developed a method for operating mass manufacturable photonic sensors at the quantum limit. The work paves the way for practical applications, including the monitoring of greenhouse gas...
Fraunhofer Tests Lasers for Magnetic Field-Based Diagnostics
FREIBURG, Germany, June 8, 2022 — Researchers from the Fraunhofer Institute for Applied Solid State Physics (Fraunhofer IAF) demonstrated the principle of laser threshold magnetometry for the first time, they said. The Fraunhofer team is working to develop diamond-based laser...
Widened 3D Field of View Enhances OCT Diagnostic Imaging
WASHINGTON, D.C., June 8, 2022 — Researchers at Duke University developed an optical coherence tomography (OCT) technique that delivers high contrast and high resolution over a wide, 3D field of view. The enhanced OCT technique, called 3D optical coherence refraction tomography (3D...
Xanadu Brings Quantum Advantage to the People
TORONTO, June 3, 2022 — Quantum technology company Xanadu demonstrated quantum computational advantage using its Borealis photonic quantum computer. Borealis features 216 squeezed-state qubits, and it was demonstrated to outperform classical supercomputers in the...
Mitsubishi Electric Develops Laser Communications Terminal for Use in Space
TOKYO, June 2, 2022 — Mitsubishi Electric Corp. developed a prototype of an optical receiver for use in laser communication terminals (LCTs). The company claimed that the prototype is the first to integrate space optical communication using laser beams and a function to...
Liquid Silica Resin Optimizes 3D Printing for Complex Micro-Optics
TUCSON, Ariz., June 1, 2022 — A liquid silica resin (LSR) developed by researchers at the University of Arizona has proven successful as a 3D-printing medium for complex micro-optics. The organic-inorganic hybrid material has shown high curing speeds, better mechanical...
Materials-Based Solution Accelerates Photonic Computing
ORLANDO, Fla., May 31, 2022 — Researchers at the University of Central Florida (UCF) have introduced a previously undescribed class of topological insulators. The researchers increased the speed and efficiency of light as it flows through photonic circuits, in a demonstration...
Lensless Neural Network Opens Up Machine Vision Possibilities
BEIJING, May 30, 2022 — Researchers led by Hongwei Chen of the Beijing National Research Center for Information Science and Technology and Tsinghua University have developed a lensless optoelectronic neural network architecture for computer vision tasks. The system uses a...
CMOS-Compatible Photodetector Spurs Possibilities in e-SWIR Band
MONTREAL, May 27, 2022 — High-bandwidth germanium-tin (GeSn) photodetectors, developed by a team at Polytechnique Montréal to support CMOS-compatible technologies in the extended shortwave infrared (e-SWIR) wavelength, could open the way for applications in ultrafast...
Photoacoustic System Enables Real-Time Neurovascular Imaging
DURHAM, N.C., May 27, 2022 — A photoacoustic imaging tool developed by Duke University researchers accommodates the need for both speed and comprehensive detail in neurovascular imaging. The imaging modality enables an approach to visualize whole-brain hemodynamics and...
Diffractive Optical Network Supports Quantitative Phase Imaging
LOS ANGELES, May 25, 2022 — A team of researchers led by Aydogan Ozcan from the Electrical and Computer Engineering Department and California Nanosystems Institute at UCLA has developed a diffractive optical network to replace digital image reconstruction algorithms used in...
Microscopy Methods Pair to Advance Nanoscale Superresolution Imaging
PITTSBURGH, May 24, 2022 — Researchers combined stimulated Raman scattering (SRS) with expansion microscopy to develop a single microscopy technique that achieves superresolution vibrational imaging at the nanoscale. A team from Carnegie Mellon and Columbia universities...
Researchers Deploy Metasurface Tech to Design of Encryption Devices
WASHINGTON, D.C., May 24, 2022 — Researchers from the University of St. Andrews in Scotland have developed a metasurface-based device that produces multiple distinct holographic images depending on the surrounding medium and the wavelength of light used. The ability to store...
Laser Endomicroscopy Enables Real-time Detection of Lung Cancer
PHILADELPHIA, May 23, 2022 — Researchers at the Abramson Cancer Center at the University of Pennsylvania have developed a method to detect lung cancer at the cellular level in real time during biopsy. The method ensures earlier detection of cancer cells that may have been too...
Fluorescence Sensing Identifies Cancer Indicators in the Brain
MÜNSTER, Germany, May 19, 2022 — Researchers at the University Hospital Münster and Paris-Saclay University established a method to correct for artifacts caused by changes in blood flow, and recorded cell-specific lactate levels in rat brains using fluorescence signals from...
Single-Photon Emitter Retains High Purity at High Temperature
LAUSANNE, Switzerland, May 18, 2022 — Scientists at École polytechnique fédérale de Lausanne (EPFL) have developed a single-photon emitter capable of room temperature operation. The technology is based on quantum dots grown on cost-effective silicon substrates....
Laser-Based Logic Gate Speeds Up Information Processing
ROCHESTER, N.Y., May 17, 2022 — A logic gate developed by the researchers from the University of Rochester and the Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg operates at femtosecond timescales, potentially enabling information processing at the petahertz...
Perovskite Optoelectronic Logic Gates Activate Sensor Platforms
SEOUL, South Korea, May 16, 2022 — Researchers at the Korea Institute of Science and Technology (KIST) and the Gwangju Institute of Science and Technology (GIST) designed an optoelectronic logic gate (OELG) made from organic-inorganic perovskite photodiodes. The OELG architecture...
Liquid Crystal-Based Devices Manipulate Light with Flat Optics to Uncover Hidden Images
WASHINGTON, D.C., May 13, 2022 — An ancient optical illusion has been updated using the flat optics of today to create a device that reveals a hidden image when light is shined on it. Developed at the University of Ottawa, the magic window is a liquid crystal (LC)-based device that...

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