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Optical Fiber Sensors Enable New Biomedical Devices Jun 1, 2022 — The biomedical community recognized the advantages of optical fibers long ago, accepting them even before their adoption for long-haul telecommunications. Early research on the light-guiding properties of fibers in the late 1920s was aimed at applications in medical imaging. The first clad optical fiber was drawn on December 8, 1956, by Larry Curtis, a graduate student under Basil Hirschowitz at the University of Michigan. The technology was used in a multifiber bundle for a fiber endoscope,...
Photonics Spectra, Jul 2022
An Actively Cooled Mid-IR Telescope Peers Through Space Dust Jun 1, 2022 — When the European Space Agency’s (ESA’s) Herschel Space Observatory revealed that the universe was far richer in star-forming dust than previously thought, the engineers who were developing a new mid-infrared space instrument recognized...
Photonics Spectra, Jul 2022
Image Sensor Sockets: A Key Factor in Camera Design May 12, 2022 — Camera makers — and, therefore, image sensor makers — today are under greater pressure than ever to offer new models that provide higher resolution and higher speed, respectively. With higher resolution comes sharper images. With higher...
Vision Spectra, Jun 2022
Single-Photon Avalanche Diodes Sharpen Spatial and Temporal Resolution Mar 31, 2022 — As their name implies, single-photon avalanche diodes (SPADs) detect single particles of light, and they do so with picosecond precision. Single-pixel SPADs have found wide use in astronomy, flow cytometry, fluorescence lifetime imaging microscopy...
Photonics Spectra, May 2022
Large-Format Image Sensors Frame the Future Mar 3, 2022 — Sensor manufacturers have continuously sought to increase the resolution and performance of their products by decreasing the size of pixels while increasing their number. However, some applications require the scale and unique architecture of...
Photonics Spectra, Apr 2022
Photon-Counting CMOS Sensors Extend Frontiers in Scientific Imaging Feb 1, 2022 — While CMOS imagers have evolved significantly since the 1960s, photon-counting sensitivity has still required the use of specialized sensors that often come with detrimental drawbacks. This changed recently with the emergence of new quanta image...
Photonics Spectra, Mar 2022
Advanced Imaging Rises to the Task of Detecting Space Debris Jan 24, 2022 — The space industry has undergone a remarkable transformation in recent years. Once the domain of big-budget government projects, the field has increasingly seen the entry of more and more commercial enterprises, ranging from high-profile,...
Photonics Spectra, Mar 2022
Sensor Innovations Drive Expansion into New Markets Jan 11, 2022 — Image sensors are part of every smartphone and may seem to be a ubiquitous, mature technology — however, this is far from the case. While conventional CMOS detectors for visible light are well established, extensive opportunities exist for...
Vision Spectra, Mar 2022
Optical Filters Help PCR Tests Quickly Diagnose COVID-19 Dec 10, 2021 — The need to implement technology that can rapidly diagnose diseases and pathogens accurately has never been greater than it is now, as the COVID-19 virus continues to spread around the world. Prior to 2020, most people working outside the field of...
BioPhotonics, Feb 2022
Fiber Optic Sensors Are Wired for Growth with Infrastructure Improvements Dec 3, 2021 — In October 2021, a 40-year-old undersea pipeline off the coast of California ruptured, releasing more than 130,000 gallons of crude oil into the Pacific Ocean. The spill polluted the ecosystem, stifled local economic activities such as fishing and...
Photonics Spectra, Jan 2022
Demand for MIR Photonics Rises on New Gas Analysis Applications Nov 29, 2021 — Real-time precision gas analysis is critical to a wide range of industries, including medical diagnostics, emissions monitoring, and semiconductor fabrication. The relatively simple molecular structure of most gases makes them ideal candidates for...
Photonics Spectra, Jan 2022
Miniaturization in NIR Spectroscopy Reshapes Chemical Analysis Nov 24, 2021 — Near-infrared (NIR) spectroscopy has been used in groundbreaking research in many of the life sciences due to its capacity to rapidly determine and analyze the composition of materials. Bulky instruments with limited portability, however, have kept...
BioPhotonics, Feb 2022
A Wealth of Photonic Solutions Fuels Momentum for Automotive Lidar Nov 24, 2021 — The dream of fully autono­mous, driverless cars remains just that for now — a vision of a future that will require considerable effort from engineers and programmers to realize. But other, subtler forms of automation are already entering the...
Photonics Spectra, Jan 2022
Sensors Capture Image Data from Near and Far Oct 25, 2021 — Imaging sensors reveal key details during the exploration of many areas of science, from untangling events at the quantum level and the fundamental processes of the cell to building our understanding of the wider cosmos. Imaging sensor technologies...
Photonics.com, Dec 2021
A New Wavefront of Adaptive Optics Promises Improvements Oct 4, 2021 — Adaptive optics (AO) technology enables Earth-based telescopes to take the twinkle out of the stars. The technology also helps in detecting and reversing eye disease, it improves the throughput of laser-driven manufacturing, and it has enabled the...
Photonics Spectra, Nov 2021
Polymer Waveguides Smooth Path to Smaller Optical Sensors Aug 27, 2021 — The worldwide sensor market is growing rapidly with the establishment and growth of new applications, such as medical devices that leverage noninvasive optical sensors, and environmental monitoring, which is gaining importance due to a rise in the...
Photonics Spectra, Oct 2021
Embedded Vision Is Set for Application on a Massive Scale Jun 21, 2021 — Compact, efficient, and highly application specific, embedded vision technology increasingly offers performance and price points that would have been impossible to achieve only a few years ago. The steady advancement in capabilities has been driven...
Vision Spectra, Jun 2021
Photonics Scores a Touchdown for Space Exploration Jun 3, 2021 — As the Apollo 11 astronauts were initiating the first human-crewed landing on the moon, Neil Armstrong looked out of the module’s small window and, rather than observing a relatively flat landing zone on the lunar surface, he saw a boulder...
Photonics Spectra, Jul 2021
Why SWIR Imaging? Insights on Its Practical Implementations May 28, 2021 — Originally developed for applications in defense, infrared scanning technology targeting the shortwave infrared (SWIR) band has become more widely adopted in many other applications over the last decade. From predicting water stress or detecting...
Photonics Spectra, Jul 2021
Beam Profiling: What Is Your Laser Not Telling You? May 4, 2021 — While it may seem intuitive that turning up the power on a laser will produce faster results in a materials processing operation, beam measurement tools often reveal that this only distributes the laser’s energy over a larger area, resulting...
Photonics Spectra, Jun 2021
The Food Industry’s Appetite for Hyperspectral Imaging Grows May 3, 2021 — If the old maxim “you are what you eat” has any truth to it, then it becomes critically important to ensure that the food you consume is safe and of suitable quality. To this end, the U.S. Department of Agriculture (USDA) spent $1.1 billion in 2019...
Photonics Spectra, Jun 2021
Camera Selection for Low-Light Imaging Apr 30, 2021 — Fluorescence microscopy is a broadly used term, with applications ranging from basic life science, such as time-lapse cell viability assays, to sophisticated techniques in which a very few photons or single molecules are detected and localized by...
Photonics Spectra, Jun 2021
How Far Down the Road Is the Autonomous Vehicle? Mar 31, 2021 — First conceived by editors of Scientific American magazine, the dream of self-driving cars — known today as autonomous vehicles (AVs) — recently passed its 100-year anniversary. With the phenomenal advancements in technology during the...
Photonics Spectra, May 2021
Liquid Crystal Sensors Provide Rapid COVID-19 Diagnosis Mar 23, 2021 — The global outbreak of COVID-19 has prompted scientists worldwide to focus their research on the virus over the last year, particularly those who work with optical and sensing technologies. Some have concentrated on understanding fundamental aspects...
BioPhotonics, Aug 2021
Thermal Imaging Takes the Temperature of New Applications Mar 5, 2021 — While thermal infrared imaging technology was once limited to defense and government-funded applications, it has become more mainstream over the past few decades. The growing awareness of the technology’s industrial benefits has primarily been...
Photonics Spectra, Apr 2021
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