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Research & Technology News

Chip-Based Beam-Steering Lights Way to Smaller, Cheaper Lidar
LYNGBY, Denmark, Aug. 4, 2022 — Researchers from the Technical University of Denmark have developed a chip-based beam-steering device to reduce the size and cost of high-performance lidar technology. The device could have applications in autonomous diving, free-space optical communications, 3D holography, biomedical sensing, and virtual reality. Conventional mechanical beam-steering in current lidar systems is bulky, expensive, sensitive to vibration, and limited in speed, said research team leader Hao Hu. Although
SPIE, Photonics Media Invite Applications for 2023 Prism Awards
PITTSFIELD, Mass. — The SPIE Prism Awards, which will celebrate their 15th anniversary in 2023 at SPIE Photonics West, are open for applications through Sept. 15. The awards, held annually by SPIE, the international society for optics and photonics, are a celebration...
Lasers Spur Gas Motion in Water to Boost Chemical Manufacturing
XI’AN, China, Aug. 4, 2022 — Researchers at Xi’an Jiaotong University have devised a potential solution for the self-transport of gas underwater using a femtosecond laser. The team created a superhydrophobic surface with a hollow microchannel less than 100 µm wide....
Fiber-Based Photoacoustic Endoscope Fits Inside Needle
WASHINGTON, D.C., Aug. 3, 2022 — King’s College London and University College London researchers have developed a miniature, high-speed, photoacoustic endoscope that is small enough to fit inside a 20-gauge medical needle. The needle probe demonstrated the ability to provide...
Silicon Component Keys Environmental Satellite’s Optical System
JENA, Germany, Aug. 3, 2022 — Two Fraunhofer institutes have delivered the core optical innovation supporting a recently launched space-based environmental mapping and analysis initiative. The components and devices supplied by the Fraunhofer Institute for Microengineering and...
Needle-Shaped Beams Enhance OCT Image Quality
STANFORD, Calif., Aug. 2, 2022 — Stanford University researchers have developed a method to create needle-shaped laser beams of varying lengths and diameters, capable of increasing the quality of images obtained by OCT and other imaging modalities. Adam de la Zerda, research team...
New Optical Switch Could Lead to All-Optical Signal Processing
PASADENA, Calif., Aug. 2, 2022 — An optical switch developed by Caltech researchers harnesses the property of optical nonlinearity and aims to enable ultrafast all-optical signal processing and computing. According to its developers, the technology could help to bypass one of the...
Nanostructures Advance Machine Vision Capabilities for Diverse Applications
MADISON, Wisc., Aug. 1, 2022 — Researchers at the University of Wisconsin-Madison, Washington University in St. Louis, and OmniVision described approaches to image sensor production that used integrated nanostructured components to improve multimodal imaging. The developments...
Single-Frequency Laser Supports Smaller Optical Systems
SHANGHAI, Aug. 1, 2022 — To overcome the challenges of single-mode lasing with a high Q factor, researchers from Shanghai Institute of Optics and Fine Mechanics and collaborators demonstrated a single-frequency ultranarrow linewidth erbium-doped lithium niobate (LN)...
Broadband Photodetector Opens Up Sensing Possibilities in Robotics
GLASGOW, Scotland, July 29, 2022 — Engineers at the University of Glasgow designed and developed a flexible, broadband photodetector that could be used in an electronic skin for robotics, as well as in other sectors. Such a photodetector-based skin could enable robots to perceive...
Micro-Ring Resonator Enables Fast, Accurate Detection of Ebola Virus
ST. LOUIS, July 28, 2022 — A diagnostic technique for the Ebola virus uses a micro-ring resonator and a biomarker to quickly identify the presence of the virus in blood samples. Researchers at Washington University School of Medicine developed the technique, in collaboration...
Portable Laser-Based Scanning Device Detects Critical Biomarkers
LITTLE ROCK, Ark., July 27, 2022 — Researchers at the University of Arkansas for Medical Sciences (UAMS) reported advances to the previously developed Cytophone device. In the current work, the researchers integrated a miniature multispectral laser diode array, time-color coding, and...
Defined Limits Help to Solidify Use of Spaceplates in Optical Systems
ITHACA, N.Y., July 26, 2022 — Researchers at Cornell University have proposed a definition for the fundamental and practical limits of spaceplates, a technology developed to support the miniaturization of optical systems. According to the researchers, their attempt marks the...
Add-On 3D Imager Enables Affordable Treatments for Eye Conditions
GLASGOW, Scotland, July 25, 2022 — An ophthalmological device developed at the University of Strathclyde supports low-cost screenings for eye disease. The device captures 3D images of the retina and the back of the eye, as well as the cornea — which is an important feature for...
Terahertz Light Experiments Herald Downsized Particle Accelerators
OAK RIDGE, Tenn., July 25, 2022 — Scientists at Oak Ridge National Laboratory (ORNL) investigating how to produce and use terahertz (THz) light to enable particle accelerators developed an electro-optical sampling technique that measures THz wavelengths while at the same time...
Light-Powered Nanomotors Perform as Ultrasmall Energy Converters
AUSTIN, Texas, July 21, 2022 — Researchers at the University of Texas (UT) have designed a solid-state, optical nanomotor that uses light to power functional devices at the nanoscale — without the challenges that hinder nanomotors operating in liquid environments. According...
Atomically Smooth Gold Crystals Enable Nanophotonic Applications
LONDON, July 19, 2022 — Researchers at KAIST and collaborators have demonstrated a platform to guide compressed lightwaves in extremely thin Van der Waals crystals. The researchers believe that the method, used to guide mid-infrared light with minimal loss, will enable...
Direct Laser Welding Enables Adhesive-Free Fiber-to-Chip Connection
WEßLING, Germany, July 19, 2022 — Fraunhofer IZM researchers and partners have developed a laser welding technique to fix optical fibers to photonic integrated circuits (PICs), removing the need for adhesive bonding. The technology was developed in response to proposed biophotonic...
Gel Filters Various Wavelengths of Light as its Temperature Changes
GAITHERSBURG, Md., July 18, 2022 — A colloidal gel developed at the National Institute of Standards and Technology (NIST) has demonstrated that it can control structural color and light transmission. Called SeedGel by its creators, the material was originally developed for industrial...
3D Holographic Display Achieves Wide Viewing Angle
BEIJING, July 15, 2022 — A Beihang University research team created a holographic 3D display system that widens its viewing angle and enlarges image size through the simultaneous implementation of two different hologram generation methods. The system features a tunable...
Researchers Increase Spatiotemporal Resolution of Imaged Lightwaves
GARCHING, Germany, July 14, 2022 — A team of physicists from the Max Planck Institute of Quantum Optics and the Ludwig Maximilian University of Munich, in cooperation with Stanford University researchers, have developed a technique to measure the electrical field of ultrashort laser...
Silicon Defect Offers Photonic Link to Quantum Internet
BURNABY, British Columbia, July 14, 2022 — A research team at Simon Fraser University (SFU) have exploited a defect in silicon that it believes will enable the realization of massively scalable quantum computers — and the quantum internet that will connect them. Previous research has...
Integrated Photonics Processor Outperforms Wireless Systems
MILAN, July 13, 2022 — An international team led by researchers at the Politecnico di Milano has devised a way to separate and distinguish optical beams even when the beams are superimposed, and even when the form in which the beams arrive at a destination is drastically...
Diamond Defects Boost Magnetic Field Sensing for Brain Activity Mapping
MELBOURNE, Australia, July 12, 2022 — A team from Fraunhofer Institute for Applied Solid State Physics (Fraunhofer IAF), with diamond sensing technology experts from RMIT University, demonstrated that magnetic-field-dependent emission from nitrogen-vacancy (NV) centers in diamond...
Fiber Photometry Manages, Records Brain Activity at Same Time
BEIJING, July 12, 2022 — Researchers at Tsinghua University and Huazhong University of Science and Technology have developed an all-fiber-transmission photometry system that permits optogenetic manipulation and multicolor recording of neuronal activities and...

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