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Quantum Cascade Lasers Enhance Mid-IR Spectroscopy
Voltage-tunable output wavelength, broad gain spectra, high output power and efficiency, and innovative cavity geometries give quantum cascade laser-based sensor systems an edge in applications from gas analysis to chemical sensing. Most vapor molecules have a unique absorption spectrum in the mid-IR region, so this range is of particular interest for trace gas analysis and chemical sensing. And quantum cascade (QC) lasers are ideal candidate light sources for mid-IR spectroscopy: Their...
Photonics Spectra, December 2011
Research at the Nanoscale Boosts Green Photonics
Improving the efficiency of thin-film solar cells is a key challenge, and some believe that nanophotonics could be the answer. Nanophotonic structures give us better control over light, enabling us to manipulate it in ways never seen before...
Photonics Spectra, December 2011
Terahertz Computed Tomography Helps ID Chemical Substances
As radiation sources become more efficient, detectors become more sensitive, and acquisition speeds up, terahertz computed tomography holds promise for nondestructively finding and distinguishing between different materials by visualizing spatial...
Photonics Spectra, December 2011
Aspheric Optics: Ask for What You Want
Advances in production make aspheres more readily available and usable at shorter wavelengths, but the methodology is distinctly different from that of spherical optics. It is vital to understand the cost impact of various specifications — and...
Photonics Spectra, November 2011
Extreme Ultraviolet: A New Frontier for Lasers
Advances in compact EUV lasers could benefit industries from semiconductor manufacturing to medicine. Compact lasers that operate in the extreme ultraviolet (EUV) wavelengths – 5 to 50 nm – are poised to offer new abilities to image,...
Photonics Spectra, November 2011
Fully Featured Machine Vision Software Drives Manufacturing
Cameras are ubiquitous on the factory floor, and for good reason: Robots, heavy machinery, raw goods, containers and finished products fly around at breakneck speed, while fewer people than ever are slowing down production by watching over them....
Photonics Spectra, November 2011
Smart, Self-Healing Fibers Laugh at Danger
Light, sturdy fiber optic sensors can help monitor conditions in power plants, on airplane wings, on dams and in other hard-to-reach places. The composition of fiber optic sensors enables them to be placed in areas where traditional point sensors...
Photonics Spectra, November 2011
“A Wave of Optimism Is Spreading Again”
As the economy starts to pick up, Vision 2011 will turn an eye on machine vision applications and complete systems for industrial and nonindustrial purposes. A full range of machine vision components, systems, services and innovative products...
Photonics.com, October 2011
5-W Green Q-Switched DPSS Laser Improves Marking
In an industrial environment, various components must be marked prior to, during and after production so that they can be identified and traced throughout their entire life cycle. For more than 40 years, lasers have been used for marking a variety...
Photonics Spectra, October 2011
CMOS X-Ray Sensors Sharpen Astronomical Imaging
There still are many unanswered questions in high-energy astrophysics: What is happening in the universe to produce so much gamma-ray energy? What happens to the surrounding environment near solar flares? Some of the answers could come from studying...
Photonics Spectra, October 2011
Machine Vision Sees Growth
Good news: The European machine vision industry recovered from the crisis of 2009 a while ago, and its overall forecast remains positive. Such are the findings of the European Machine Vision Association (EMVA) as outlined in its most recent annual...
Photonics.com, October 2011
Multicamera Systems Capture Every Angle
Recent technology advances, ranging from very wide fields of view to invisible wave bands and affordable ultralow-noise devices, are creating fascinating new applications for multicamera systems. It’s an exciting time in the imaging...
Photonics.com, October 2011
Quantum Dots Warm Up LED Lighting
Quantum dots could solve the major problems that are blocking LEDs from broader adoption – but issues related to color, lifetime, cost and mass production must be solved. Quantum dots and LEDs are from the same family tree, in a sense....
Photonics Spectra, October 2011
Something OPSL, Something New
The latest optically pumped semiconductor lasers (OPSLs) enable full-color laser light shows with high electrical efficiency in large outdoor locations, even with challenging weather conditions – as proved at the wedding of Prince Albert of...
Photonics Spectra, October 2011
The Birth – and Growth – of Glass Ceramics
When glass ceramics were first created in the 1950s, these novel optical materials rightfully caused a stir, and they remain widely desired today for a range of semiconductor, military sensing and astronomy applications. Glass ceramics are...
Photonics Spectra, October 2011
The Rise of the Service Robot
Industrial robots revolutionized manufacturing, and service robots are set to rise up and do the same in such diverse areas as medical care, surveillance and the military – and also in domestic settings, where they could take over chores from...
Photonics Spectra, October 2011
Wafer-Level-Optics Project Enables Ever-Smaller Micro-Optics
The growing demand for compact technical products and the miniaturization trend are two developments that are exerting a major influence on the production of micro-optical components. The consumer industry, telecommunications and laser technology...
Photonics.com, October 2011
Historic Lasers Find New Life in Niche Applications
With all the hoopla surrounding new high-brightness lasers such as disk and fiber, some think the death knell is sounding for CO2, lamp-pumped and other older, well-established types. However, the lack of a one-size-fits-all laser means these...
Photonics Spectra, September 2011
Metamaterials: Photonic Sleight of Hand
Invisibility cloaks, perfect imaging, enhanced photovoltaic light collection, all-optical memories and biosensing are just some of the intriguing applications of metamaterials currently grabbing headlines in scientific journals. The field of...
Photonics Spectra, September 2011
Plasma Source Enables High-Volume Manufacturing with EUV Lithography
As the lithography capital equipment sector moves toward early field deployment of extreme-ultraviolet (EUV) scanners and support, the 13.5-nm EUV energy source continues to be a key factor in the ultimate adoption and economic success of the...
Photonics Spectra, September 2011
Property Management: A Review of Optical Materials
Optical materials are as old as the natural quartz and obsidian crystals early civilizations used to change the way people saw the world. Artificial materials came later, with mirrors and other optics produced following the growth of art glass in...
Photonics Spectra, September 2011
2011 Employment Satisfaction & Salary Survey
Salary* by primary focus of work 4% Aerospace, aviation $134,077 1% Agriculture, food, forestry, mining $176,000 ...
Photonics Spectra, August 2011
In Your Own Words
Our salary survey has a lot of facts and figures for you to digest, but we also wanted to find out some personal tidbits from various corners of our industry. What inspired people to get involved in photonics? What are their favorite instruments?...
Photonics Spectra, August 2011
Keeping the Oil Out: Protecting Industrial Facilities with Fluorescence Detection
From Hurricane Katrina’s shutdown of oil refineries in the American South to the tsunami-induced nuclear emergencies in Japan, manufacturing facilities have recently faced one disaster after another, but they also face – every day...
Photonics Spectra, August 2011
Mergers, Acquisitions and More
It sure has been a busy year for photonics companies as they dig further and further out from the economic downturn of 2008. Optimism has reigned in presentations and on the exhibit floors at trade shows and conferences, and not without reason:...
Photonics Spectra, August 2011
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