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Emerging Applications Drive Image Sensor Innovations
CMOS sensors are being taken for a ride. Forecasts call for image sensor market growth to be driven by automobiles, with increasing use of lidar, cameras, and sensors. To not hit a stop sign, though, vendors need to up product performance and cut costs. There also are other emerging markets, such as the Internet of Things (IoT), and technologies, including artificial intelligence (AI), that have their own demands. Vendors are responding by increasing sensor spectral range, integrating new
Photonics Spectra, October 2018
Application-Specific Machine Vision Simplifies Aircraft Maintenance
Machine vision systems, however automated, do not exist in isolation. They must augment and intelligently interact with human operators. Workflows can benefit from 3D optical vision systems. In particular, vision systems technology shows significant...
Photonics.com, September 2018
Member Exclusive
With Lasers, 3D Printing on a Miniature Scale
Copies of buildings and the Statue of Liberty that are only microns tall — these are examples of what’s been done with three-dimensional nanolithography, known as 3D nanoprinting. Also possible today is the manufacturing of optical,...
Photonics Spectra, September 2018
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Manufacturing High-Performance Mirrors
When it comes to long-range, multispectral optical systems, large mirrors play an integral role; there are tens of thousands of optical units containing large mirrors around the globe. With minimum diameters starting at 200 mm, the largest mirrors...
Photonics Spectra, September 2018
White Light Interferometry for Highly Accurate Thickness Measurements
White light interferometry (WLI) is a common system of measurement with a long history and a variety of applications, which currently include surface profiling1, medical imaging, and — as in the past — thickness measurement. Also known as coherence...
Photonics Spectra, September 2018
Harsh-Environment Fiber Optics for Aerospace
In its most basic form, bare optical fiber consists of a silica core and a cladding whose indices of refraction vary slightly. However, bare fiber is not very useful beyond a laboratory setting because its performance is highly susceptible to its...
Photonics Spectra, September 2018
Nanometer-Scale Automation for Optical Device Manufacturing
Manufacturers of optical devices know the importance of mature industrialized processes built around the cost savings of automation. These processes have made manufacturing optical devices economical in a number of speed- and bandwidth-sensitive...
Photonics Spectra, September 2018
Tunable Laser Light Sources Advance Nanophotonics Research
A considerable part of contemporary photonics research that investigates the interaction of light with nanoscale objects — nanophotonics — is motivated by the commercial potential of real-world devices. A vast number of experimental studies call for...
Photonics.com, September 2018
Optics Tools Advance in New Forms with Space Exploration
With a new generation of large telescopes comes new challenges for optics. Some mirrors, for instance, must be large but flexible to perform wavefront correction and make the images as clear as possible. The shape of future optics will be different...
Photonics.com, September 2018
Quiet Lasers, Cool Science
In the 1960s, just a few years after the laser was invented, researchers contemplated its use as a precision tool to control the motion of neutral atoms. Early research focused on the use of an opto- mechanical force based on the scattering of...
Photonics Spectra, August 2018
Terahertz Spectroscopy on the Cutting Edge of Material Testing
Just a few years ago, the application of terahertz radiation seemed obscure at best. If experts were asked for killer applications, few could be named. In 2018, however, terahertz measuring instruments are showing significant market potential....
Photonics Spectra, August 2018
Smartphone Spectroscopy Promises a Data-Rich Future
The seminal 1960s television series “Star Trek” delivered futuristic inventions and Captain James T. Kirk’s roguish smile into American homes on a weekly basis. Among the show’s memorable gadgets were the communicator, which inspired the design of...
Photonics Spectra, August 2018
Member Exclusive
Improving Automation with 3D Vision
If a traditional picture is worth a thousand words, what’s the value of a 3D image? Quite a bit when it comes to automation. Consider a robot picking a part out of a bin in an automated assembly line. “If you want to accurately grab a pinion out of...
Photonics Spectra, July 2018
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Member Exclusive
Better Filters Yield Better Sensor Performance
From weather satellites to lidar for self-driving cars, precision optical filters play a vital role in making sensors work. Today, the ability to interrogate more and more sections of spectrum promises enhanced capabilities for these and other...
Photonics Spectra, August 2018
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Navigating Best Laser Choices Crucial for Microwelding
Four distinct laser types are suitable for microwelding: pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG); continuous-wave (CW) ytterbium-doped fiber; quasi-continuous-wave (QCW) fiber; and nanosecond pulsed fiber. Each laser offers unique...
Photonics.com, June 2018
Catching Up with Kent
Q: Were you serious about science as a young person? Was there a pivotal event or person who really put you on the path? A: Actually, I wanted to be a musician. It just took me a while to realize that wasn’t in the cards. I had a math teacher who...
Photonics Spectra, August 2018
Minimizing Stray Light in Everyday Optical Systems
Very often when optical engineers hear “stray light” or see a requirement for some level of either stray light analysis or testing, they become concerned. They wonder how such a simple system can have stray light problems. Or they think stray light...
Photonics Spectra, August 2018
Lasers for Micromachining: Shorter Pulses, More Power
Smaller devices, tighter tolerances, and higher performance demand finer and finer features — hence the increasing need for micromachining. For lasers, this often translates into a requirement for shorter pulse widths. However, these must be at the...
Photonics.com, June 2018
Optical Interconnects Set to Achieve Bandwidth Benchmark
Countless emails, text messages, pictures, and videos are posted on social media every day, along with unfathomable amounts of data that must be processed by the likes of Amazon and Google. All of this information must be stored and processed in...
Photonics Spectra, July 2018
Patterned Photovoltaic Absorbers Harvest Sunlight Better
Recent reports forecast solar power will become the world’s cheapest form of energy within the decade. The dramatic decrease in the price of photovoltaic (PV) solar modules in recent years (now hovering around 31 cents per watt peak) has resulted...
Photonics Spectra, July 2018
Extreme UV Keeps Pace with Moore’s Law
For years, 193-nm immersion lithography enabled foundries to create increasingly smaller features on silicon wafers. The technique involved shining 193-nm light through a patterned surface that cast a pattern onto a blank silicon wafer. But problems...
Photonics Spectra, July 2018
Vapor Deposition Method Suits Coating Curved Optics
Antireflection (AR) coatings are some of the most extensively employed types of optical thin films. By reducing the amount of light reflected from a surface, such coatings improve system throughput, increase contrast, and enhance signal-to-noise...
Photonics Spectra, July 2018
OLED-on-Fabric Could Be the Next Wearable Wonder
It started with the fitness tracker. And thanks to continued advances in sensors, computing power, and energy harvesting, the age of IoT-based wearable technologies is upon us. For broader adoption, however, tomorrow’s wearable must feature display...
Photonics Spectra, July 2018
Thermal Camera-Equipped UAVs Spot Hard-to-Find Subjects
The enormous growth in the drone, or small unmanned aerial vehicle (UAV), industry over the past five years has changed the way many industries operate, and the trend is not slowing down. Business Insider Intelligence predicts year-over-year growth...
Photonics Spectra, June 2018
Continuously Variable Bandpass Filters Aid Optics and HSI
Hyperspectral imaging (HSI) has been in use for a couple of decades in applications such as satellite imaging and air reconnaissance. Despite its widespread use, there is a lack of clarity of what “hyperspectral” encompasses. Sometimes techniques...
Photonics Spectra, June 2018
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