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(2,228 items)
Education News
Marine Algae Optical Fiber Boasts Applications in Range of Medical and Scientific Environments
SÃO PAULO, Aug. 7, 2020 — Researchers at the University of Campinas (UNICAMP) in Brazil and Gunma University in Japan have designed an optical fiber from agar, the natural gelatin obtained from marine algae. In addition to being edible, the fiber is biodegradable and biocompatible — qualities that give the researchers the ability to use its waveguide for in vivo applications such as imaging, light delivery, and sensing. The fiber may also play a valuable role in medical settings. A medical professional could
Optical Pliers Made with Smart, Flexible Material Operate Remotely
WARSAW, Poland, Aug. 7, 2020 — Liquid crystal elastomer (LCE) technology was applied to practical use by a group of researchers who used this material to demonstrate a miniaturized gripping tool grown on optical fibers. Scientists from the University of Warsaw worked with...
Single-Crystal Perovskites Made with Standard Practices Are Stable, Flexible
LA JOLLA, Calif., Aug. 6, 2020 — Engineers at the University of California, San Diego have developed a way to fabricate perovskites as single-crystal thin films. The method, which uses standard semiconductor fabrication processes including lithography, produces flexible,...
Nanoparticles with Plasmonic Effect Boost Photocatalysis
GRAZ, Austria, Aug. 5, 2020 — Researchers at Graz University of Technology (TU Graz) developed a method for assembling plasmonic nanoparticles for specific applications. Their approach was to synthesize so-called core-shell clusters inside helium nanodroplets, with subsequent...
Researchers Structure Propagation-Invariant Light Fields Using Caustics
MÜNSTER, Germany, Aug. 5, 2020 — Researchers at the University of Münster, the University of Birmingham, and the University of Marseille demonstrated a way to shape propagation-invariant light beams arbitrarily by using a smart-beam design based on caustics. Their approach...
Artificial Intelligence Brings Specificity to Label-Free Imaging for Assisted Reproduction
URBANA, Ill., Aug. 4, 2020 — As part of a project to develop specific traits in cattle that would make them resistant to heat and diseases in tropical regions, researchers at the University of Illinois at Urbana-Champaign developed a phase-imaging technique to determine which...
Metasurface Added to Photonic Chip to Improve Footprint, Control
STATE COLLEGE, Pa., Aug. 4, 2020 — A team of researchers at Penn State has integrated metasurfaces onto a photonic integrated circuit (PIC) chip. The design maintains high light controllability, allowing guided waves inside the PIC to drive the metasurfaces, enabling routing light...
Researchers Miniaturize Imaging Device Using 3D Microprinted Camera Lens
ADELAIDE, Australia, Aug. 3, 2020 — Researchers from the University of Adelaide and the University of Stuttgart have developed an ultrathin endoscope small enough to scan images from inside the blood vessels of mice. In humans, the scope will help scientists better understand causes...
Researchers Turn Laser Sintering on Its Head
NEW YORK, Aug. 3, 2020 — Selective laser sintering (SLS), a process that uses a laser to heat powder materials to the point where the micron-scale particles fuse together to form a solid mass, is one of the most widely used additive manufacturing processes today. Until now,...
Marine Luminescence Appears After Stress Test
CAMBRIDGE, England, July 31, 2020 — No matter how small, organisms respond to their surrounding environment. A group of scientists at the University of Cambridge has shown that the light produced by ocean organisms is related to the stress their cells are under at the time. The team,...
Photonic Crystal Generates VUV Light at Wavelengths Suitable for Spectroscopy
TOKYO, July 31, 2020 — Researchers at the University of Tokyo have created a tabletop device that efficiently generates circularly polarized vacuum ultraviolet (VUV) light using an ultrathin film with nanoscale perforations. VUV wavelengths, which can be absorbed by air...
Tunable Laser Determines Best UV Wavelengths for Germ Eradication
GAITHERSBURG, Md., July 31, 2020 — While awaiting full access to their labs due to COVID-19 restrictions, scientists at the National Institute of Standards and Technology (NIST) have taken the time to report on research conducted in 2012 on the disinfection of drinking water using...
Mirror Specifications and Energy-Efficient Design Support Increasingly Portable System for Laser Precision at Room Temperature
CAMBRIDGE, Mass., July 30, 2020 — A team of MIT physicists, working with researchers from Louisiana State University (LSU) and Crystalline Mirror Solutions (CMS, now part of Thorlabs Inc.) has designed a quantum “light squeezer” capable of limiting quantum noise in laser...
Cameras Record Object Density More Accurately
NOMI, Japan, July 29, 2020 — Crowd counting — the process of obtaining information on the density or number of objects such as vehicles or people — can benefit from the same deep learning techniques that have been used for image and video processing. Scientists at...
Scalable Approach to Lidar Could Propel Autonomous Vehicles, Other Tech
BOULDER, Colo., July 29, 2020 — A silicon chip with a serpentine optical phased array (SOPA), developed by researchers at the University of Colorado Boulder, could improve the resolution and scanning speed of lidar systems while reducing bulkiness, making them scalable for a range...
Silicon CCD Camera Peers into Mid-Infrared
IRVINE, Calif., July 29, 2020 — Researchers at the University of California, Irvine used the nonlinear optical properties of the silicon (Si) chip in a Si-based camera to enable a mid-infrared (MIR)-specific response in the camera. Their method for detecting MIR images with a...
Fishbone Waveguide Design Flattens Dispersion, Expands Bandwidth of Frequency Combs
PARIS, July 28, 2020 — A waveguide design that could enable highly precise frequency combs has been created by a research team from the French Centre National de la Recherche Scientifique, Paris-Saclay University, and Zhejiang University. The team’s design produces...
Strain Engineering of 2D Materials Enables More Effortless Photodetection
WASHINGTON, D.C., July 28, 2020 — Using a 2D material and an approach it calls “strainoptronics,” a George Washington University research team created a photodetector that can operate with high efficiency at the wavelength of 1550 nm, a spectral region that offers...
Laser Irradiation Degrades Cellulose for Use in Biofuel
TOKYO, July 27, 2020 — A laser-based technique developed by a Japanese research team could make it easier to degrade the plant product cellulose, which is used to produce biofuel. The new technique is based on a type of laser called the infrared-free electron laser...
OCT Captures Optical Sections that Match Corneal Curvature
WASHINGTON, D.C., July 27, 2020 — A team from Paris’ Langevin Institute, a joint unit consisting of researchers from the City of Paris Industrial Physics and Chemistry Higher Educational Institution (ESPCI) and the Centre National de la Recherche Scientifique (CNRS), have...
Hybrid Approach Enables Ultralow-Loss Integrated Photonics for Lidar
LAUSANNE, Switzerland, July 23, 2020 — Researchers at École Polytechnique Fédérale de Lausanne (EPFL) and Purdue University demonstrated a hybrid approach to on-chip acousto-optic modulation by combining piezoelectric aluminium nitride technology with ultralow-loss...
Model Guides Precise Formation of Plasmonic Components
ST. PETERSBURG, Russia, July 22, 2020 — Using a real-time mathematical analysis model developed at ITMO University, scientists will now be able to manipulate the process of creating photonic and plasmonic components to produce the precise optical properties that are needed in a material....
Fraunhofer ILT Project Demonstrates Thulium Laser Welding
AACHEN, Germany, July 21, 2020 — Using a thulium laser, a team from the Fraunhofer Institute of Laser Technology (ILT) has developed an innovative process for producing the smallest weld seams in transparent plastic components. The development builds on the successful completion of...
Device Produces Controllable Single Photons from Quantum Dots
DUBLIN, July 16, 2020 — For quantum computing applications, it will be necessary to control emissions from quantum emitters, or quantum dots (QDs), and to produce quantum entanglement of the emission from pairs of QDs. A new photon-emitting device developed at Trinity...
Improved Illumination Achieved Via Superresolution Microscope Design
LAUSANNE, Switzerland, July 16, 2020 — By increasing the uniformity of light dispersed across the field of view, a team of biophysicists from the Laboratory of Experimental Biophysics (LEB) at École Polytechnique Federale de Lausanne has successfully increased the size of images...
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