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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 conventional abrasive and chemical processes in many applications, such as rust removal, depainting, degreasing, activation, restoration, pre-/post-welding joint cleaning, surface preparation, decontamination, and rejuvenation. As a cleaning technique,...
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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Laser Processing Brings Manufacturing to Next Level
Lasers are used in many industrial sectors for a wide variety of processes, including drilling, cutting, welding, and scribing, to optimize manufacturing and ensure high-quality components. Prices have fallen and, with the added application support...
Photonics.com, December 2019
The Eyes Behind Surgical Robots
The first robotic surgery took place in 1985 when the PUMA 560 was used in a stereotaxic operation in which computed tomography (or x-ray) was used intraoperatively to guide a robot as it inserted a needle into the brain for biopsy. In the late...
Photonics Spectra, April 2020
From IR to THz, Space Telescopes Get Detector Array Upgrades
August 25 marked the Spitzer Space Telescope’s “sweet 16.” Launched in 2003 with a planned primary mission of 2.5 to 5 years, the infrared observatory — the last of NASA’s Great Observatories to take flight — far...
Photonics Spectra, November 2019
Optifab 2019 to Showcase the Latest in Optical Manufacturing
SPIE Optifab 2019, North America’s largest optical manufacturing conference and exhibition, will be held Oct. 14-17 at the Rochester Riverside Convention Center in Rochester, N.Y. This biennial event is organized jointly by SPIE and the...
Photonics Spectra, October 2019
Motion Control Solutions for High-Precision, Large-Field Laser Micromachining
High-precision, high-throughput laser micromachining typically requires galvo scan heads with a short focal length, which in turn produces a small image field, or field of view (FOV). However, a growing number of high-tech manufacturing areas, such...
Photonics Spectra, November 2019
High-Speed 3D Inspection with Liquid Lenses
The concept of liquid lenses, which involves controlling the shape of a liquid to alter the properties of a lens, is not new. The human eye uses this concept every day as it focuses on objects near and far. The ciliary body of the human eye contains...
Photonics Spectra, November 2019
Characterizing Microplastics with Raman Spectroscopy
We live in a disposable world. Plastic throwaway utensils and packaging litter our landfills and often end up in our oceans. The large pieces pose problems for aquatic life. Mistaking litter for food, sea life eat it, which wreaks havoc on the their...
Photonics Spectra, October 2019
Face Recognition Systems and Consumer Devices
Many forms of biometric authentication are technically feasible, but one in particular has won acceptance in use cases that call for high security and minimal intrusiveness for the user: face recognition. Today, most people’s interactions with face...
Photonics Spectra, October 2019
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