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Why SWIR Imaging? Insights on Its Practical Implementations
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 disease in crops to inspecting produce headed to market, commercial SWIR imaging technology is starting to yield real benefits in the agriculture industry, including increased crop production, lower-cost produce, and reduced food waste. The SWIR band is...
Photonics Spectra, July 2021
UV-VIS Spectroscopy Extends from the Lab to Outer Space
UV-VIS spectroscopy has been a robust spectroscopic modality since at least the early 1940s. That’s when National Technical Laboratories (now Beckman Coulter) released its DU spectrophotometer — one of the first widely available, tabletop-size...
Photonics Spectra, July 2021
As DUV Lithography Rallies, Demand for ArF Lasers Follows
Four years ago, several leading-edge chip foundries raced to roll out extreme-ultraviolet (EUV) lithography processes for sub-14-nm chips that were intended to succeed the preceding generation of chips. Then, in the summer of 2018, GLOBALFOUNDRIES...
Photonics Spectra, July 2021
Tracing the Evolution of Additive Optics Fabrication
Optical components have traditionally been created through subtractive manufacturing approaches that are mainly based on turning and molding methods. Milling, for example, is an affordable way to rapidly develop a first rough prototype. Milling is...
Photonics.com, September 2021
Beam Profiling: What Is Your Laser Not Telling You?
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, June 2021
The Food Industry’s Appetite for Hyperspectral Imaging Grows
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, June 2021
Camera Selection for Low-Light Imaging
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, June 2021
Laser Technology Enhances and Expands the Medical Toolkit
Medical lasers have been used for decades in surgical contexts. In recent years, the development of compact, easy-to-use, and often self-contained modules has opened doors for new or enhanced procedures in ophthalmology, dentistry, dermatology, and...
Photonics Spectra, June 2021
Raman Spectroscopy Dishes Up Solutions for the Food Industry
As people, we have a complex relationship with food. We want it to be simple, cost-effective, and convenient. But we also savor gourmet foods prepared with the finest ingredients available. The quality of high-end ingredients depends on their...
Photonics Spectra, May 2021
Ultrafast Lasers Are Quickly Catching Up with Industry Demand
With pulse lengths down to the picosecond realm and beyond, ultrashort-pulse lasers — often called ultrafast lasers — have been deployed as scientific research tools for decades. The fields of femtochemistry, spectroscopy, and...
Photonics Spectra, May 2021
How Far Down the Road Is the Autonomous Vehicle?
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
Managing Temperature-Based Performance Drift for Coatings
What happens when optical coatings get very cold? There should be little difference in a thin film’s optical performance at room temperature test conditions versus its use conditions. But this is not always the case. Performance varies at different...
Photonics Spectra, May 2021
Molecular Laser Opens Unique Spectral Window
The terahertz spectral region, which falls between the microwave and infrared ranges, is one of the most promising regions of the electromagnetic spectrum for research and industry, but it is currently underutilized in these areas. There is no...
Photonics.com, June 2021
Thermal Imaging Takes the Temperature of New Applications
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, April 2021
Freeform Micro-Optics Reel Off New Applications
Much attention is given to freeform optics fabrication, which has improved the performance of traditional micro-optic imaging systems1. But replicated freeform micro-optics are also fostering advancements across a broad spectrum of applications...
Photonics Spectra, April 2021
Member Exclusive
High-Energy Lasers Advance Defense and Industry
Ever since the laser first appeared in the public consciousness, popular culture has reframed it as a prospective weapon of infinite range and power. This is largely because popular culture is unshackled from the concerns of engineering and physics....
Photonics Spectra, April 2021
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Worsening Wildfires Spark Photonics Demand and Innovations
In October 2016, a downed powerline sparked a wildfire that raged for two weeks and destroyed more than 18,000 acres in the Pike and San Isabel National Forests west of Pueblo, Colo. The so-called Junkins fire ended up destroying nine homes and 17...
Photonics Spectra, April 2021
Photonics Reduces Size, Weight, and Power for Defense Systems
Many modern troops go to battle carrying up to 80 lbs of gear per soldier. Approximately 20 lbs of this weight can come from batteries for radios and electro-optics. Reducing a soldier’s burden improves mobility and mission effectiveness and reduces...
Photonics Spectra, April 2021
SOI Technology Lights Up the Next Wave of Photonics Solutions
Silicon has been the mainstay of micro-nanoelectronics since the late 1950s, being widely adopted for electronic devices and complementary metal oxide semiconductor (CMOS) technologies. In the early years of the semiconductor industry, germanium was...
Photonics Spectra, February 2021
Embedded Vision Is Streamlined for Application on a Massive Scale
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...
Photonics Spectra, March 2021
Multiband Optical Filters Are Telecom Networks' Multitaskers
Multiband optical filters have long been used in applications such as fluorescence spectroscopy, astronomy, and 3D cinema, to name a few. The ability to combine more than one spectral band into a single optical filter can enable flexibility of...
Photonics Spectra, March 2021
Flow Cytometry Channels Photonics to Advance Immunology
The COVID-19 pandemic has put the field of immunology under an international spotlight. Researchers in the field have been rigorously studying our immune system’s response to the SARS-CoV-2 virus to understand how we combat infection....
Photonics Spectra, March 2021
Spectroscopy Becomes a Potent Part of Pharmaceutical Production
Fallout from the outbreak of COVID-19 continues to ripple across all sectors, and the photonics industry is no exception. But while the virus has raised challenges for many businesses, it has created opportunities for others. Innovative treatments...
Photonics Spectra, March 2021
Nonvisible Imaging Expands Resolution, Range, Applications
The ability to image beyond the visible spectrum offers more than a quantitative expansion of our perceptions. It also provides qualitative improvements with applicable value to public health, manufacturing, and the safety and quality of food. These...
Photonics Spectra, January 2021
3D Imaging Sees Growth in Multiple Dimensions
From time to time, we all find ourselves forced to rummage through the cluttered jumble of our home “junk drawer” to dig out a screwdriver, battery, paper clip, or other much-needed object. For humans, this is merely cause for fleeting...
Photonics Spectra, February 2021
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