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Metamaterials Extend Photonics
Metamaterials — engineered to have unique photonic and other properties — can enable previously difficult or impossible-to-achieve performance. Radar or lidar steering, for instance, can be achieved inexpensively without moving parts. Glasses for augmented or virtual reality can direct light into the eye for viewing synthetic images. Optical signals can be switched faster, and important optical parameters such as polarization can be measured more simply and could benefit from these...
Photonics Spectra, March 2020
Pulsed Lasers Create Optimal Cladding for Tools
Lasers are versatile tools with negligible changeover times in manufacturing processes, but in some areas their uses are still suboptimal, such as in welding. Crack formation and problems with fusion of material can still occur and hinder the...
Photonics.com, March 2020
The New Technologies Shaping Near-Infrared Spectroscopy
Near-infrared (NIR) spectroscopy is the branch of vibrational spectroscopy related to the molecular absorption of light between ~750 to 2500 nm, which has a variety of industrial and medical applications. This region of the electromagnetic spectrum...
Photonics Spectra, February 2020
Special Majorana-Like Vector Photon Beams
A special, newly proposed photon called a “Majorana-like” photon possesses spin angular momentum (SAM) and orbit angular momentum (OAM) coupled together. Experiments with mouse brain tissue have revealed the plausibility of using these...
Photonics Spectra, February 2020
Wafer-Level Optics Enable Small-Form Photonic Sensors
For many years, innovations in sensors for mass markets such as automotive, gaming, and consumer electronics have been driven by the microelectromechanical systems (MEMS) industry. MEMS-based sensors are well known to provide solutions for a...
Photonics.com, March 2020
Infrared Sensors Offer Insights into Invisible Threats
Mark Zondlo has an atmospheric chemistry laboratory at Prince-ton University, but you may have a hard time finding him there. Most of his team’s environmental research is conducted in the real world — roaming through America’s...
Photonics Spectra, February 2020
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Improving Devices with Plasmonics
Researchers are putting electron oscillations, or plasmons, to work and paving the way for instruments that could improve food safety and devices for future mobile communications. Additionally, plasmonic-enabled nanolasers could provide a means to...
Photonics Spectra, February 2020
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Artificial Intelligence in Particle Image Velocimetry
The first article to use the term “particle image velocimetry” (PIV) was published in 1984. Since then, PIV has become a standard method for flow measurements. The technique has remained largely unchanged over the past 35 years. Continuous lasers or...
Photonics Spectra, February 2020
Laser Cleaning Techniques in Industrial Applications
For centuries, the techniques and equipment used for surface cleaning or renewal in industrial applica­tions have remained the same. The demand for improvements, however, has grown dramatically in recent years. Laser technology is now replacing...
Photonics Spectra, February 2020
2020 Prism Award Finalists Showcase Industry Innovations
A light that generates 10× the number of entangled photon pairs than any known photon source. A hand-held Raman spectrometer with MEMS scanning mirrors. An FDA-cleared semiconductor laser for treating glaucoma — smaller and less...
Photonics Spectra, January 2020
2019 Webinars: A Deep Dive into Optics, Photonics, and Imaging
From deep learning to high-end optical design, the 2019 webinar program provided photonics fanatics with 35 opportunities to learn about new developments in optics and photonics, and to refresh their knowledge of established technologies. Webinar...
Photonics Spectra, December 2019
Photonics West 2020
Photonics West is set to take place Feb. 1-6 and boasts at least one Nobel laureate, more than 5000 presentations, 1350 companies, 10 new courses, and plenty of special events. The exhibition, according to SPIE public relations manager Daneet...
Photonics Spectra, December 2019
Member Exclusive
Advancements in Holography Usher In Sci-Fi-Inspired Devices
The 1971 Nobel Prize in physics was awarded to the Hungarian-British electrical engineer Dennis Gabor for inventing the field of holography. It wasn’t until six years later, however, that the discipline would gain widespread recognition. In...
Photonics Spectra, January 2020
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Imaging the Oldest Light in the Universe with the BICEP Array
The field of experimental cosmology is unique among the physical sciences. It uses the entire observable universe as a laboratory, within which examinations of large-scale physical phenomena can help physicists answer some of the most fundamental...
Photonics Spectra, January 2020
Full-Immersion AR: The Path to Consumer-Friendly Devices
Augmented and mixed reality (AR/MR) devices are perceived by some as the next big thing in consumer electronics. These devices could form the basis of the next great computing revolution, joining the ranks of smartphones and personal computers as a...
Photonics Spectra, January 2020
With Innovations, Lasers Boost Performance
With their performance rising, semiconductor lasers may be able to best their fiber-based counterparts in a wide variety of applications. On the horizon are potential game changers, such as high-power blue laser diodes and organic laser diodes. But...
Photonics Spectra, January 2020
Market Trends in Automotive Lidar
As society considers a future with autonomous vehicles (AVs), lidar continues to be a hot topic. Since 2016, there has been huge interest in automotive lidar, which has resulted in investments and advancements in transportation and other lidar...
Photonics Spectra, January 2020
Free-Space Communications Extends Its Reach
It is little wonder that the concept of transmitting information across open air — free of wires, channels, or any other incumbent medium — is a tantalizing one. No longer confined to the realm of science fiction, the reality of today has...
Photonics Spectra, January 2020
Digital Cinema Faces a Bright Future
Over the past 40 years, audiences have grown accustomed to seeing lasers used on screen in blockbuster action and science fiction films. More recently, lasers have carved out an essential role behind the scenes as well, enabling cutting-edge digital...
Photonics Spectra, December 2019
Solutions for Laser-Based Cinema Projection
When companies present laser-based cinema projector solutions on their websites or in their literature, they tend to promote complete projector systems. This leaves website visitors with the mistaken impression that they must purchase an entirely...
Photonics Spectra, December 2019
Workholding Adhesives for Optical and Ceramic Components
The way optical workpieces are held during processing has changed little over the decades. During grinding and polishing, vacuum fixturing and adhesives such as wax, pitch, and epoxy resins have traditionally been used. The waxes and pitches are...
Photonics Spectra, December 2019
Digital Holographic Microscopy Enhances Cytometry and Histology
In recent years, quantitative phase imaging (QPI) has been continuously improved for purposes of high-resolution, label-free quantitative microscopy. Label-free imaging has received increased attention in the last decade as a minimally invasive way...
Photonics.com, December 2019
Newspace Launches Hyperspectral Imaging into Orbit
Half a century ago, the first Space Age was in full swing, funded by large government budgets and fueled by economic-political pressure to dominate space exploration. Today this movement has evolved into NewSpace — a revolution in the space industry...
Photonics.com, December 2019
Image Sensors Power Embedded Vision
New imaging applications are booming: from collaborative robots in Industry 4.0 to drones that fight fires and monitor crops, from biometric face recognition to point-of-care hand-held medical devices at home. A key enabler in the emergence of these...
Photonics Spectra, December 2019
Member Exclusive
Better Biomedicine via 3D Imaging
Advancements in biomedical 3D imaging promise to improve research findings and clinical outcomes, thereby producing widespread benefits. In research, a combination of techniques will enable high-speed visual 3D imaging effectively below the...
Photonics Spectra, December 2019
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