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Research & Technology News

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 °F, or 2 K. At this temperature, the particle accelerator becomes superconducting and can boost electrons to high energies with nearly zero energy lost in the process. Though the accelerator reached its final temperature of 2 K in April, SLAC
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)...
Noninvasive Imaging Method Measures Below the Diffraction Limit
WASHINGTON, D.C., April 29, 2022 — A label-free microscopy technique developed by researchers at the University of Graz enables noninvasive, sub-diffraction-limit imaging of nanostructures. The all-linear, optical far-field measurement and imaging technique measures the position and...
Remote Sensing, Neural Networks Combine to Measure Tree Height
ZURICH, April 29, 2022 — Scientists at ETH Zurich’s EcoVision Lab have developed a deep learning framework to map treetop height globally at high resolution, using publicly available optical satellite images as input. The Global Canopy Height Map is the first map of...
Hyperspectral Method Adds Speed, Accuracy to Wafer Inspection
SEOUL, South Korea, April 26, 2022 — A high-throughput metrology technique for semiconductor manufacturing, developed by Samsung Electronics, combines spectroscopy and imaging to measure in-cell uniformity (ICU) and in-wafer uniformity (IWU) of semiconductor devices used in high-volume...
Light-Driven Microdrones Offer Nanosensing, Motion Possibilities
WÜRZBURG, Germany, April 26, 2022 — Physicists at the University of Würzburg have used light to propel micrometer-size objects in an aqueous environment and control them precisely on a surface with all three degrees of freedom — two translational degrees and a rotational...
Microsize Molecular Machines Swarm for Drug Delivery
SAPPORO, Japan, April 25, 2022 — Scientists at Hokkaido University demonstrated light-manipulated microsize molecular machines, or robots, that performed cargo delivery through a swarming strategy to ultimately achieve a transport efficiency 5× greater than that of single...
Scattering Phenomenon Could Improve Optical Communications
GAITHERSBURG, Md., April 25, 2022 — A phenomenon observed in a miniature light-scattering system composed of an ultrathin layer of silicon nitride on a chip could lead to improved optical communications and sensors. Researchers at the National Institute of Standards and Technology...
Safe, Ingestible Fluorescent Silk Tags Authenticate Medications
WEST LAFAYETTE, Ind., April 22, 2022 — To help block the flow of counterfeit medications, researchers at Purdue University and the National Institute of Agricultural Sciences in South Korea developed edible fluorescent tags that can be coded and added to pills or liquid medicine. Each...
Glass-in-glass Fabrication Method Produces Complex Optics
WASHINGTON, D.C., April 21, 2022 — A manufacturing technique for creating microstructures by integrating two types of glass with different physical properties could provide a path to complex infrared (IR) optics to be used in spectroscopy, imaging, sensing, and other applications....
Rotating Laser Enables Faster, Longer Imaging of Cells
FREIBURG, Germany, April 20, 2022 — A microscopy method developed at the University of Freiburg is able to resolve cellular-level detail without fluorescence, enabling observations 100 to 1000× longer and 10 to 100× times faster, with almost double the resolution. The...
Laser-irradiated Coating Augments Nonsurgical Treatment of Obesity
WASHINGTON, D.C., April 19, 2022 — A multi-institutional research team in South Korea has enhanced the existing functionality of appetite-suppressing implants in the stomach with photodynamic therapy, coating such an implant with light-activated dye that kills cells that produce...
Lithography Technique Precisely Controls Nanodevice Feature Sizes
HONG KONG, April 19, 2022 — Researchers at the University of Hong Kong (HKU) developed an approach for nanodevice fabrication to increase the efficiency of building nanostructures that require spatially different dimensions. The researchers devised and demonstrated a...
European Initiatives Increase Access to Quantum Magnetometers
FREIBURG, Germany, April 18, 2021 — Researchers from six Fraunhofer institutes are working on two projects that aim to make quantum magnetometers — sensor devices that measure magnetic field — usable in industrial settings. Magnetometers are currently limited in such...
Integrated Laser on Lithium Niobate Chip to Spur Advanced Telecom
CAMBRIDGE, Mass., April 15, 2022 — In collaboration with industry partners at Freedom Photonics and HyperLight Corp., researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) developed what the collaborators said is the first fully integrated...

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