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Polymer Optics Target Complex Imaging Systems May 1, 2023 — Polymer optics, also known as plastic optics, are ideal for reducing the footprint and weight of optical systems and assemblies, further fueling the demand for polymer optics in end uses in which these characteristics are important, such as in autonomous imaging, wearables, head-mounted displays, multicamera arrays, and point-of-care medical devices, among many other applications.
Photonics Spectra, May 2023
Pixel Correction Advances Next-Generation Displays May 1, 2023 — In 2017, Clay Bavor, then vice president of Google’s AR/VR division, spoke for all AR/VR device makers when he said, “We need pixels. Way, way more pixels.”1 The display industry has more than risen to that challenge in the...
Photonics Spectra, May 2023
Multifield Imaging Enhances Detectability at Speed May 1, 2023 — Multifield imaging is a new imaging technique that enables the simultaneous capture of multiple images under various lighting conditions. Coupled with time delay integration, this emerging imaging technique can overcome many of the limitations of...
Photonics Spectra, May 2023
Photovoltaics Power an Indoor Revolution Apr 3, 2023 — Readers of a certain age may recall getting through math and science courses with the assistance of a trusty solar-powered calculator that could harvest just enough ambient light from the classroom to power its rudimentary electronics and LCD...
Photonics Spectra, Apr 2023
Smaller Optical Gyroscopes Navigate into Broader Markets Apr 3, 2023 — The RQ-4 Global Hawk, Northrop Grumman’s high-altitude remotely piloted aircraft, has a maximum takeoff weight of 32,250 lb. The platform’s massive size affords it the ability to carry a Kearfortt airborne navigation system, which...
Photonics Spectra, Apr 2023
Nuclear Fusion Drives Laser Development Apr 3, 2023 — It is a rare event when a successful experiment in basic research makes it to the evening news. In December 2022, the U.S. secretary of energy announced a breakthrough in laser-based nuclear fusion. The news was covered in all major media around the...
Photonics Spectra, Apr 2023
Programmable Photonic Chips Adapt PICs to Multiple Futures Apr 3, 2023 — While electronics are perfect for performing fast calculations, photonics are ideal for moving information around. A major drawback of the latter, however, is the slow and costly development process for new photonic integrated chips, hampering their...
Photonics Spectra, Apr 2023
Photonic Gas Analysis Probes Upgrades in Sources and Detectors Mar 3, 2023 — The hunt is on for better gas analyzers, driven by growing demands. For instance, hydrogen sulfide, an industrial byproduct, has a permissible worker exposure limit of 20 ppm in a confined space, according to OSHA. Increasingly stringent emission...
Photonics Spectra, Mar 2023
Smaller, Simpler Supercontinuum Lasers Illuminate a Bright Future Mar 3, 2023 — As broadband light sources, supercontinuum lasers are a truly revolutionary technology. While halogen light sources — or even a normal tungsten bulb — can emit a large bandwidth of light, supercontinuum generation (SCG) derives from a...
Photonics Spectra, Mar 2023
High-Speed Photoacoustic Microscopy Captures Processes Within Tissue Mar 3, 2023 — When Alexander Graham Bell discovered the photoacoustic effect in the 1880s, he might not have envisioned that this technology would ultimately be successfully implemented in biomedical imaging applications such as neuroscience, dermatology, and...
BioPhotonics, Apr 2023
Hyperspectral Imaging Boosts Yields in Vertical Farming Mar 3, 2023 — Vertical farming, also known as sky farming, is the practice of growing food crops in vertically stacked layers in controlled indoor spaces using soilless hydroponic or aeroponic growing methods. Vertical farming does not replace conventional...
Vision Spectra, Mar 2023
Image Sensor Innovations Drive Automation Advancements Mar 3, 2023 — There’s arguably never been a more exciting time for the development of image sensors, with notable achievements in 3D imaging, event-based sensing, and nonvisible imaging. Recent innovations have focused on pixel architecture and sensor...
Vision Spectra, Mar 2023
Aptamers Provide Instant Photonics-Based Diagnostics Mar 3, 2023 — Aptamer-based diagnostics is a new field in the development of technologies for instantly identifying disease. Aptamers are short sequences (oligonucleotides) of DNA or RNA that bind to a specific target molecule. They are typically 20 to 60...
BioPhotonics, Apr 2023
Raman Spectroscopy Identifies Disease Characteristics and In Vitro Structure Mar 3, 2023 — Since the invention of lasers and their integration into Raman spectroscopy systems, the spectroscopy technique has grown in popularity for use in life science and medical applications as a way to noninvasively analyze a sample and identify the...
BioPhotonics, Apr 2023
AI Takes Vision-Guided Robotics to the Next Level Mar 3, 2023 — Vision-guided robotics (VGR) is one of the largest-growing sectors in both the robotics and machine vision markets. While industrial robots are used in a variety of industries, the ability to guide a robot based on information from a machine vision...
Vision Spectra, Mar 2023
Dynamic Light-Scattering Method Could Guide Alzheimer’s Diagnosis and Treatment Mar 3, 2023 — The early detection of neurologic damage caused by Alzheimer’s disease, before symptoms have appeared, is integral to the development of effective treatments. Early detection, made possible by leveraging dynamic light scattering to identify subtle...
BioPhotonics, Apr 2023
Metalenses Scale Up to Target the Market for Small Optics Mar 3, 2023 — Earlier this year, the first wave of smartphones equipped with STMicroelectronics’ second-generation direct time-of-flight (TOF) sensor reached the consumer market. The sensor includes planar metasurface optics. The metalens-enabled sensor...
Photonics Spectra, Mar 2023
sCMOS Camera Designs Push the Limits on Resolution Feb 3, 2023 — Applications ranging from astronomy to the life sciences to semiconductor manufacturing and metrology have steadily increased the demand for camera technologies targeting the extreme-ultraviolet (EUV) and even the soft x-ray regimes. Many of these...
Photonics Spectra, Feb 2023
On-Board Optics Expand Bandwidth and Reduce Power Use in the Data Center Feb 3, 2023 — Co-packaged optics (CPO) and on-board optics (OBO) are not novel concepts, per se. The benefits of moving optics closer to the computing cores of data center switches have been clear to systems developers since optical glass fiber was first adopted...
Photonics Spectra, Feb 2023
A New Alexandrite Laser Drives More Sustainable Atmospheric Science Feb 3, 2023 — As anyone who has ever worked with an alexandrite laser can attest, its lasing medium demands respect. “It has about every problem a laser engineer can imagine,” said Josef Höffner, a scientist at the Leibniz Institute of...
Photonics Spectra, Feb 2023
Free-Space Optical Communications Soar with the Satellite Sector Feb 3, 2023 — Free-space optics (FSO) and systems are uniquely valuable in enabling fast and secure connectivity, both in terrestrial and nonterrestrial networks. With major advancements in space optics over the last 20 years, ultrahigh-bandwidth signals now...
Photonics Spectra, Feb 2023
New Sensor Materials and Designs Deepen SWIR Imaging Capabilities Jan 6, 2023 — Imaging in the shortwave infrared (SWIR) range, from 1000 to 2500 nm, offers significant new advantages in an array of applications, from autonomous vehicles to food quality inspection. SWIR photons are scattered less by dust or fog than...
Photonics Spectra, Jan 2023
PICs Set Their Sights Beyond Data and Telecom Jan 6, 2023 — Due to the strong association that photonic integrated circuits (PICs) have with the data and telecom markets, it is easy to overlook their potential in other verticals — such as health care, agriculture and food production, and automotive...
Photonics Spectra, Jan 2023
Beam Profiling Evolves to Keep Lasers in Line with New Applications JOEL P. WILLIAMS, ASSOCIATE EDITOR Lasers provide many different industries with greater efficiency, less waste, and higher precision, but they are not always as easy to fix as the machines they replace. A blunted drill bit is easier to observe and replace than an underperforming...
Photonics Spectra, Jan 2023
Quantum Technology: The Next Little Thing in Photonics Jan 6, 2023 — The 2022 Nobel Prize in physics was awarded to three scientists, each with a record in quantum research. They were rewarded for discoveries they had made three decades ago, discoveries that paved the way for a new quantum revolution, or Quantum 2.0...
Photonics Spectra, Jan 2023
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