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Keeping Optical Tables Steady
Experimental results from a scanning laser Doppler vibrometer elucidate the effects of active vibration damping. Vibration presents a major challenge for precision experiments and manufacturing processes in optoelectronics. Optical tables and breadboards in various shapes and forms are the de facto standard of vibration control. They rest on soft isolators that effectively filter out vibration from the floor. However, other sources of disturbance – acoustic noise, atmospheric
Photonics Spectra, October 2014
Diode Lasers Break into New Wavelengths, New Applications
New wavelengths, new production technologies and microassembly are all expected to help extend the reach of diode lasers in the future. The field of diode lasers is a dynamic, fast-developing area, enabling new applications to emerge continuously....
Photonics.com, September 2014
Lens-Free Microscopes Offer Real-Time Bio Imaging
A totally different type of microscope will be much smaller and less complex than traditional microscopes, but more powerful. Two years ago, a customer handed Richard Stahl and the imec team a challenge: one year to develop a microscope that could...
Photonics.com, September 2014
SWIR Applications and Challenges: A Primer
Infrared imaging opens endless possibilities for industrial, scientific and security image-processing applications. But short-wave infrared cameras must overcome the limitations of InGaAs sensor technology to provide high-quality images....
Photonics.com, September 2014
Dual-Band Monitoring Keeps Trains Running in Winter
Keeping critical parts of the railroad infrastructure free of snow, sleet, hail and ice – and even detecting unauthorized persons walking the rails – is essential for a safe and uninterrupted transportation service. Dual-band monitoring...
Photonics Spectra, September 2014
Laser Technology Enhances Experience for Sports Fans, Refs
A laser device helps spectators and officials to better visualize important markers, so that people in the stadium have the demarcation information offered to TV viewers at home. Science and technology are inextricably linked with sports. Over the...
Photonics Spectra, September 2014
Lasers Help Carmakers Chase Fuel Efficiency
Laser-based technologies and techniques including drilling, welding and measurement allow auto manufacturers to keep pace with the demand for lower emissions. For car manufacturers, the number 54.5 looms large. That’s the mile-per-gallon...
Photonics Spectra, September 2014
QDs Generate Light for Next-Generation Displays
Large color gamut and better color reproducibility will be highly desired features of displays in the near future. Quantum dots will be the down-conversion technology of choice, allowing LCD makers to cost-effectively reach and exceed 100 percent of...
Photonics Spectra, September 2014
Solar Cell Materials: Finding a Happy Medium
Marrying the low cost of thin-film and the efficiency of crystalline silicon helps to improve solar cells. The solar industry is at another inflection point in its development. Costs have come down as a result of a significant increase in capacity,...
Photonics Spectra, September 2014
Understanding Actively Q-Switched Solid-State Lasers
With an increased quantitative understanding of the operation of Q-switched lasers come huge benefits for laser design. This first article in a two-part series focuses on actively Q-switched lasers; the second part, in a later issue, will cover...
Photonics Spectra, September 2014
Vehicle Vision Puts the 'Auto' in 'Automobile'
Vision systems are increasingly enabling self-driving cars to automatically park, maintain speed and prevent collisions. Can a world of ubiquitous self-driving cars be far off? Whether it’s a flying, automatically driven car like the...
Photonics Spectra, September 2014
For Image Processing, More Power and More Challenges
Increased resolution, 3-D measurement and ease of use are placing ever-greater demands on vision software. In some ways, the machine vision market is no different than its consumer counterpart. Take, for instance, the question of megapixels. The big...
Photonics Spectra, August 2014
Improving Slurry Recycling Makes Green Process Greener
In August 2012, Sydor Optics shared its efforts to recycle and reuse cerium oxide polishing slurry. Two years later, the company has improved the process to save even more cerium oxide – and even more money. In September 2010, thanks to...
Photonics Spectra, August 2014
Industry Snapshot
SPIE’s annual salary survey offers a broad-ranging look at the current state of the industry. SPIE released the results of its latest annual global optics and photonics salary survey – the largest such international study of the industry...
Photonics Spectra, August 2014
Mergers, Acquisitions and More
June 2013 through May 2014 Just a few short months ago, our January issue included a feature titled “Where the Jobs Are Now” by Howard Rudzinsky, who noted that the U.S. had experienced 44 months of continuous job growth with a comeback...
Photonics Spectra, August 2014
Ones To Watch
Every August, we bring you some of the best and brightest early-career researchers and engineers (sometimes in middle school or high school) – and this year is no different. Our editors have searched far and wide to find students of various...
Photonics Spectra, August 2014
Reader Polls
READER POLL: Textbooks or experience? Which is the better teacher? Both are great, but I prefer a good textbook to start learning from. You can refer back to it, and there is more time to process the information. Patricia Comeford, engineer (via...
Photonics Spectra, August 2014
Laser-Power Measurement Solves Challenges for Materials Processing
The days of finicky, unstable, high-maintenance laser systems are quickly becoming a thing of the past. Legacy laser systems are being replaced with better sources, components and total systems, bringing more robust laser processes to production...
Photonics.com, July 2014
Lasers Power Improved Materials Processing
For lasers, materials can present a manufacturing challenge. Polymers may be best processed with light of a particular wavelength, while metals may respond best to a specific power density. No matter the material, manufacturing fine features can...
Photonics.com, July 2014
Ultrashort-Pulse Lasers Take the Heat Out of Materials Processing
Ultrashort-pulse (USP) lasers have, since the late 1990s, been an exciting technology looking for opportunities to gain mass market application in industrial materials processing. In recent years, a wide range of new products offering innovative...
Photonics.com, July 2014
A Better Small View Can Yield a Big Impact
Microscopy is a key tool in materials science, especially in the development of new and better materials, and microscopy methods keep advancing. As things get smaller, faster and cheaper, the stakes get higher – especially for the materials...
Photonics Spectra, July 2014
Novel Laser-Power Sensor Improves Process Control
A new type of laser-power detector delivers fast speed and high laser-damage resistance, enabling real-time process control in embedded systems. Lasers process a wide range of materials in an extraordinarily diverse array of applications that often...
Photonics Spectra, July 2014
Optical Filters Open Up New Uses for MWIR, LWIR Systems
The future for photonics imaging is bright in a previously dark wavelength regime: The ability to image ‘invisible’ features such as thermal profiles, gases and other environmental constituents in a commercially viable manner has begun...
Photonics Spectra, July 2014
Positioning System Advances Could Herald Smart-Factory Era
Optical positioning systems could be at the forefront of carrying factories into the fourth industrial revolution. Positioning systems are essential to ensure precision engineering in a number of manufacturing industries from lithography and...
Photonics Spectra, July 2014
Slow Light: Moving Out of the Lab
When put into practical use, slow-light-enhanced technologies will improve the performance of photonic networks and optical sensors. Photonic crystals will play a key role in the transition, as they hold promise for integration into nanophotonic...
Photonics Spectra, July 2014
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