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Mounting Precision Enhances Laser Performance Mounting Precision Enhances Laser Performance
Optical mounts literally form the skeleton of virtually all laser systems. The development of mounts with greater stability and wavefront fidelity is key to the creation of higher-performance laser-based tools. This, in turn, extends the precision and reliability of a wide range of manufacturing systems and instruments. Optical mounts frequently play a critical role in overall laser system performance, but their impact may become obvious only when optical misalignment from vibration,
Photonics Spectra, December 2014
OPO-Based Photoacoustic Spectroscopy Speeds Up Gas Analysis OPO-Based Photoacoustic Spectroscopy Speeds Up Gas Analysis
High mid-IR output power from an optical parametric oscillator teams up with novel cantilever-enhanced photoacoustic measurement technology to offer extreme sensitivity and selectivity in industrial gas analysis and monitoring. The ultimate...
Photonics Spectra, December 2014
'Internet of Lights' Meets Industrial Internet of Things 'Internet of Lights' Meets Industrial Internet of Things
A network of LED lights can be controlled with new levels of ease and precision using commercially available intelligent lighting modules and control networking solutions. The initial promise of LED lighting was to deliver more efficient lighting...
Photonics Spectra, November 2014
Breaking Ground Now: Next-Gen Giant Telescopes Breaking Ground Now: Next-Gen Giant Telescopes
The largest telescope on Earth is currently the Gran Telescopio Canarias in the Canary Islands of Spain, which was built in 2009 with an aperture of 10.4 m. This 10-m design will hold the record for another four to eight years, but a new crop of...
Photonics Spectra, November 2014
Microbolometers Move Thermal Imaging into Next-Gen Commercial Uses Microbolometers Move Thermal Imaging into Next-Gen Commercial Uses
Technology advances and improved manufacturing of uncooled thermal detectors are fueling this application expansion. First developed for military applications in the 1950s, thermal imaging lets humans see objects that are not visible to the eye by...
Photonics Spectra, November 2014
MWIR for Remote Sniffing and Locating of Gases MWIR for Remote Sniffing and Locating of Gases
A mid-wave infrared camera visualizes methane gas cloud leaking from a drilling platform. Methane is a greenhouse gas that is significantly more damaging than carbon dioxide. When it leaks uncontrolled from industrial plants, it can easily escape...
Photonics Spectra, November 2014
PMD Camera Enhances 3-D Imaging PMD Camera Enhances 3-D Imaging
A CMOS-architecture imaging array where each pixel is a photonic mixer device overcomes challenges in 3-D image capture. Gauging the distance, size and shape of an object is of paramount and self-evident practical importance in everyday life. Nature...
Photonics Spectra, November 2014
Understanding Passively Q-Switched Solid-State Lasers Understanding Passively Q-Switched Solid-State Lasers
The operation of Q-switched lasers can be quantitatively understood – with huge benefits for laser design. In the September issue, we covered the operation and design of actively Q-switched lasers; this second part covers passively Q-switched...
Photonics Spectra, November 2014
Short-Pulse Lasers Enable Transparent Materials Processing Short-Pulse Lasers Enable Transparent Materials Processing
In several industries, an increasing need exists to cut, drill and mark glass, sapphire and diamond – materials that are difficult to machine using traditional mechanical methods due to their brittleness and hardness. Their transparency at...
Photonics.com, October 2014
Shorter Wavelengths, Pulses Power Laser Manufacturing Shorter Wavelengths, Pulses Power Laser Manufacturing
Recent laser advances are bringing benefits to manufacturing applications involving drilling, cutting and welding. More powerful diode lasers could, in the future, do more of these jobs directly, instead of being used to pump another material. The...
Photonics.com, October 2014
Gas Purging Keeps UV Systems Healthy Gas Purging Keeps UV Systems Healthy
Photochemical deposition of organic films is a significant cause of performance loss in ultraviolet systems; when feasible, it can be reduced or eliminated with inert gas purging. Ultraviolet photons are highly energetic – enough to break...
Photonics Spectra, October 2014
Micro Thermal Camera Opens Applications to Consumers Micro Thermal Camera Opens Applications to Consumers
Personal thermal imaging just got affordable – but the technology can be used in various industries, too. Thermal imaging is hardly new, but most of us don’t carry thermal imagers in our pockets. Not yet. But it could happen soon, thanks...
Photonics Spectra, October 2014
Additive Manufacturing: The Laser Source Is Critical Additive Manufacturing: The Laser Source Is Critical
Laser beam power, spot size and focal point must be measured and controlled to produce parts to specification through 3-D printing. Laser-based additive manufacturing (AM) involves the deposition of a precise amount of material in a layer- by-layer...
Photonics Spectra, October 2014
Applications Expand for Photon Counting Applications Expand for Photon Counting
The prospects of photon-counting imaging are as diverse as they are promising. From space-debris monitoring, to telecommunication satellites and shuttle missions, to the advent of powerful surgical tools, which could help cancer patients through the...
Photonics Spectra, October 2014
Bandwidth Demands Drive Fiber Optics Advances Bandwidth Demands Drive Fiber Optics Advances
Data centers and other applications are pushing changes in long-haul and short-haul fibers. Fiber optics connects the world, carrying calls and data. With bandwidth demand growing, manufacturers are working to up transmission rates, cut costs and...
Photonics Spectra, October 2014
Keeping Optical Tables Steady 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...
Photonics Spectra, October 2014
Diode Lasers Break into New Wavelengths, New Applications 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 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 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 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 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 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 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 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 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
(2,985 results found)

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