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Research & Technology News
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 that is poised to advance photonic quantum computing. The UCF design diverges from traditional design approaches that introduce topological phases by using tailored, discrete coupling protocols or helical lattice motions. To improve the
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...
X-Ray Laser Achieves Its Final, Colder-Than-Space Temperature
MENLO PARK, Calif., May 12, 2022 — The superconducting particle accelerator, an upgrade to the Linac Coherent Light Source (LCLS) x-ray free-electron laser at the U.S. Department of Energy’s SLAC National Accelerator Laboratory, has been cooled to a temperature of −456...
Self-Cleaning Optical Fiber Generates Supercontinuum Light Sources
TAMPERE, Finland, May 11, 2022 — Researchers at Tampere University collaborated with colleagues at the University of Warsaw and the University of Burgundy France-Comté to create a supercontinuum light source in the mid-infrared, using a nonsilica, graded-index, multimode...
Advanced Navigation Adds Sensing Capabilities with Vai Acquisition
SYDNEY, May 10, 2022 — AI robotics and navigation technology company Advanced Navigation has acquired Australian National University (ANU) spinout Vai Photonics. Vai is developing photonic sensors for precision navigation and joins Advanced Navigation to commercialize its...
Topological Cavity Widens Functionality of Surface-Emitting Lasers
BEIJING, May 10, 2022 — Researchers at the Institute of Physics of the Chinese Academy of Sciences have incorporated a topological cavity into the design of a surface-emitting laser to create a device that addresses the challenge of simultaneously increasing output power...
Metalens Cuts Complexities for Semiconductor Manufacturing
HOUSTON, May 9, 2022 — Rice University researchers have developed a metalens that transforms incoming longwave UV light (UVA) into a focused output of vacuum UV (VUV) radiation. VUV is used in semiconductor manufacturing, photochemistry, and materials science....
Team Looks to the LWIR to Fabricate Achromatic Metalens
CHANGCHUN, China, May 9, 2022 — Researchers from the Changchun Institute of Optics, Fine Mechanics and Physics of the Chinese Academy of Sciences demonstrated a broadband achromatic metalens with a numerical aperture of 0.32. The demonstration stemmed from a general method,...
High-Precision Dual-Comb Sensing Method Keeps Compact Footprint
CHANGCHUN, China, May 5, 2022 — Dual-comb photothermal spectroscopy (DC-PTS), demonstrated for the first time by a joint team from the Chinese University of Hong Kong and the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), could provide a highly sensitive...
Internal Reflection-Based Microscopy Images Single Protein
PHOENIX, May 5, 2022 — A team from Arizona State University (ASU) has introduced evanescent scattering microscopy (ESM), a label-free method for sensitive imaging of biomolecules, including proteins. The single-molecule microscopy technique is based on total internal...
Achromatic X-Ray Lens Opens Pathways in Microscopy, Access to Light Sources
VILLIGEN, Switzerland, May 4, 2022 — Scientists at Paul Scherrer Institute (PSI) developed an achromatic lens for x-rays that allows x-ray beams to be accurately focused on a single point even if they have different wavelengths. The lens will make it easier to study nanostructures with...
AR Coating Technique Streamlines 3D-Printed Micro-Optics
WASHINGTON, D.C., May 3, 2022 — Researchers at the University of Stuttgart have developed a low-temperature atomic layer deposition (ALD) technique for applying antireflective (AR) coatings to lens surfaces in multi-lens systems. The technique could reduce reflectivity and enhance...
Lithographic Technology Aids in Ultrathin Optical Fabrication
CAMBRIDGE, Mass., May 3, 2022 — Researchers from MIT have developed a low-cost optical fabrication method that enables the production high-quality thin mirrors and silicon wafers. The method developed by the team, led by research scientist and lead author Youwei Yao, reshapes...
Laser-Based Ultrasound Finds Defects in Metal 3D Printing
LIVERMORE, Calif., May 2, 2022 — Researchers at Lawrence Livermore National Laboratory (LLNL) have developed an all-optical ultrasound technique capable of performing on-demand characterization of melt tracks and detecting formation of defects in the laser powder bed fusion (LPBF)...
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July 2024
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