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Materials, Coatings News
Enhancing Lanthanide-Doped Nanocrystal Upconversion Luminescence Could Improve Bioimaging, Displays
SINGAPORE, Oct. 11, 2021 — At the National University of Singapore (NUS), researchers amplified upconversion luminescence in protein-size lanthanide-doped nanocrystals. The group reconstructed the surface of the crystal to prevent surface-associated energy loss. Tests showed that the approach enhanced photon upconversion eleven thousand-fold. Highly luminescent lanthanide-doped nanocrystals are desirable for use in biomedical applications and optical imaging. However, a large portion of lanthanide dopants
Laser Process Prints Defect-free Custom Alloy Parts
COLLEGE STATION, Texas, Oct. 6, 2021 — A study from a Texas A&M University research team could make it easier to print uniform, defect-free parts using the laser bed powder fusion 3D-printing technique with metal alloys. The researchers systematically investigated the effects of...
Photonics News: Week in Brief: 10/1/21
Oct 1, 2021 — ALBANY, N.Y. — AIM Photonics certified Synopsys Inc.’s IC Validator solution for the physical verification signoff of PICs. Synopsys, an electronic design automation company that focuses on silicon design and verification, said that its...
Photonic Chip Combines Many VCSELs into Single Laser
WÜRZBURG, Germany, Sept. 30, 2021 — Researchers from the Technion-Israel Institute of Technology and the University of Würzburg successfully forced an array of vertical-cavity lasers to act together as a single laser — a highly effective laser network the size of a grain of...
Laser Treatment Reduces Need for Hazardous Chemicals in Coatings Prep
OAK RIDGE, Tenn., Sept. 29, 2021 — Although highly regulated, the chemical pre-treatment processes used to prepare U.S. Department of Defense materials for protective coatings involve hazardous compounds that can harm one’s health and the environment. A laser-interference...
Topological Approach Boosts Efficiency of On-Chip Frequency Combs
COLLEGE PARK, Md., Sept. 29, 2021 — Using a topological platform — topology is a field of abstract math that underlies some of the most peculiar behaviors of modern materials — researchers at the University of Maryland (UMD) have proposed a method to make chip-sized...
Microscopic 3D-Printed Sensors Respond to Air Chemistry with Visible Changes
DUBLIN, Sept. 28, 2021 — Using direct laser writing (DLW) and optically responsive polymers, researchers at Trinity College Dublin and the Advanced Materials and Bioengineering Research Centre (AMBER) built miniature photonic sensors that change color in response to solvent...
Foldable Display Material Protects Smartphones, Increases Flexibility
SEOUL, South Korea, Sept. 24, 2021 — A cover window for foldable IT devices designed by LG Chem uses newly developed coating technology to make the display surface as hard as glass and the folding parts of the display as flexible as plastic. The coating material protects the display...
Photonics News: Week in Brief: 09/24/21
Sep 24, 2021 — WALTHAM, Mass. — Industrial photonic technology manufacturer Excelitas Technologies opened a new plant for its German subsidiary Qioptiq Photonics in Göttingen, Germany. The facility expands the company’s capacity for assembly of sophisticated...
Dual-Band IR Detector Can Be Integrated into Camera Chips
JÜLICH, Germany, Sept. 22, 2021 — Scientists at the Forschungszentrum Jülich (Jülich Research Center) and the Politecnico di Milano (Polytechnic University of Milan) have developed an infrared (IR) detector that provides a bias-switchable spectral response in two distinct IR bands....
Hybrid Metalens Supports Miniaturized Optics for Endoscopy
BOSTON, Sept. 20, 2021 — Researchers at Boston University and Harvard University, with colleagues from the Misr University for Science and Technology in Egypt and the University of Waterloo in Canada, developed an achromatic, hybrid metalens that is designed to focus two...
X-FAB to Offer High-Volume Micro-Transfer Printing
TESSENDERLO, Belgium, Sept. 16, 2021 — X-FAB Silicon Foundries, a foundry for analog/mixed signal and specialty semiconductor solutions, is now able to support volume heterogeneous integration. X-FAB secured a licensing agreement with X-Celeprint, which allows it to support volume...
Smart Coatings Change Color with Temperature
EINDHOVEN, Netherlands, Sept. 15, 2021 — A team led by Eindhoven University of Technology (TU/e) Ph.D. student Weixin Zhang has developed organic photonic coatings that change colors with changing temperatures. The smart coatings can be easily processed and scaled up.
University of Washington to Lead Center for Optoelectronic Materials Integration
SEATTLE, Sept. 14, 2021 — The NSF has issued a five-year, $25 million Science and Technology Center grant to fund the Center for Integration of Modern Optoelectronic Materials on Demand (IMOD), a collaboration of scientists and engineers at 11 universities led by the...
Promising Materials Emerge for Next-Gen LED-Based Data Communications
GUILDFORD, England, Sept. 10, 2021 — A team of researchers has examined how organic semiconductors, colloidal quantum dots (CQDs), and metal halide perovskites can be used in high-speed LED-based optical communication systems. LED-based techniques enable computing devices to...
UV Light Reveals Opportunities for Rechargeable Battery, Fuel Cell Design
TSUKUBA, Japan, Sept. 9, 2021 — Researchers from the University of Tsukuba and collaborators have shown that UV light can modulate oxide ion transport in a perovskite crystal at room temperature. The discovery opens new avenues in perovskite research for rechargeable batteries and...
Institute Will Spur 'Synergistic' Quantum, Photonics Advancements
EINDHOVEN, Netherlands, Sept. 8, 2021 — Eindhoven Institute of Technology (TU/e) has opened the Eindhoven Hendrik Casimir Institute (EHCI), a photonics and quantum research center. The mission of EHCI is to contribute to a sustainable information society by bringing together TU/e’s...
Foreign Atoms Help Monolayer Graphene Overcome Limitations
DAEGU, South Korea, Sept. 6, 2021 — Researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST) have introduced a simple methodology that enables the fine control over the integration of foreign atoms with graphene. From that control, the researchers developed composite...
Retroreflective Material Could Help Autonomous Vehicles to Read Traffic Signs
BUFFALO, N.Y., Sept. 3, 2021 — Research at the University at Buffalo has explored the science behind microscale concave interfaces (MCI) — structures that reflect light to produce beautiful and potentially useful optical phenomena. In a published paper, Buffalo engineering...
3D-Printed Ink Produces Elements with Disparate Optical Effects
EINDHOVEN, Netherlands, Sept. 2, 2021 — A light-reflective, 3D-printable liquid crystal ink could make it possible to use cholesteric liquid crystal — a human-made material found in TVs and smartphones that possesses properties between liquids and solid crystals — to add...
Sensor Uses Protein to Detect Rare-Earth Element in Nontraditional Sources
STATE COLLEGE, Pa., Sept. 1, 2021 — A luminescent sensor developed at Penn State can detect the rare-earth element terbium, from complex environmental samples like acid mine waste. The sensor takes advantage of a protein that specifically binds to rare-earth elements. According to...
Photonics News: Week in Brief: 08/27/21
Aug 27, 2021 — SEOUL, South Korea — Speclipse, a startup focused on laser spectroscopic and AI-based medical diagnosis technologies and a member of Born2Global Centre, received $7.7 million in investments for an accumulated investment total of $13 million....
Laser Cutter Differentiates Among Materials
CAMBRIDGE, Mass., Aug. 24, 2021 — A laser cutting system developed by researchers at MIT can detect and differentiate materials, to make informed cutting decisions. The system, called SensiCut, could increase the capabilities of laser cutting systems in applications that involve...
Perovskite-on-Silicon Tandem Tech Breaks Solar Cell Efficiency Record
WASHINGTON, D.C., Aug. 24, 2021 — Oxford PV researchers have paired metal halide perovskites with conventional silicon to create a solar cell that overcomes the practical efficiency of 26% that silicon cells alone can deliver. Using perovskite-on-silicon tandem technology, the...
Hybrid Additive Manufacturing Process Improves Coatings
AACHEN, Germany, Aug. 20, 2021 — A team at the Fraunhofer Institute for Production Technology (IPT) has introduced an additive manufacturing (AM) process that combines wire-based and powder-based laser cladding. According to the team, the hybrid process produces protective tool...
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July 2024
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