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Keeping an Eye on the Bad Guys with GigE
For the military, knowing the location of your troops – and of the enemy – can be the difference between a successful operation and defeat. In modern warfare, that difference appears in the form of the Unmanned Aerial Vehicle (UAV), an all-seeing eye- in-the-sky platform that silently and out of view provides real-time video coverage of a battlefield. In fact, the UAV’s “raison d’être” lies in its advanced video capabilities. Shown is an unmanned aerial vehicle used in modern warfare to...
Photonics Spectra, February 2009
OSA Student Chapters Light the Way for Young Investigators
At Stanford University in Palo Alto, Calif., some graduate students do more than research and study – they teach optics and photonics to the world. The university’s student chapter of the Optical Society of America (OSA) hosts various activities,...
Photonics Spectra, February 2009
Photonic Integration: Ready for Mass Adaptation?
The idea of integrating several photonic functions – such as generating, guiding, modulating, filtering and detecting light – within single small-waveguide devices has been around for some time and continues to be an active area of research. For...
Photonics.com, March 2009
Spain: Counting on Growth in Photonics
Although Spain hosts few large photonics companies, it is home to many smaller – and growing – ones. Best of all, the Spanish government actively supports the development of photonics in the belief that it will grow into a key industrial...
Photonics Spectra, February 2009
Structural Monitoring with Fibre Optics
Buildings, bridges, tunnels and dams require effective maintenance to keep them working safely, so engineers fit instruments to measure stress and strain, temperature and vibration. In the past decade, several companies have pioneered fibre optic...
Photonics.com, March 2009
The Doctor Will See You Now
If the old saying is right and an ounce of prevention really is worth a pound of cure, then some of the latest medical imaging breakthroughs could represent tons of prevention and even more of cure. There are techniques with the potential to catch...
Photonics Spectra, February 2009
The Entrepreneur and the Environment
In the October/November issue of EuroPhotonics, we met four researchers-turned-entrepreneurs and explored the role that the environment played in fulfilling their goals. This time, we examine that environment and the elements that shape it. Among...
Photonics.com, March 2009
The Prism Awards
Somewhere between the Golden Globes in January and the Academy Awards in February, the glitz and glamour of awards season made a temporary move from Hollywood to San Jose, Calif. The reason? The inaugural edition of the Prism Awards for Photonics...
Photonics Spectra, February 2009
The Science of a Nearly Full Retreat
When a liquid film meets a solid surface, all heck breaks loose as film particles cling, drag, shift, lift upward and, eventually, settle. If, however, the particles don’t attach firmly enough, they may be prone to lifting off the surface material...
Photonics Spectra, February 2009
Tips & Techniques: Image processing helps get it right
Commercial image-processing systems employing standard components perform a variety of inspection tasks. When testing parts, only the function of the components – camera, illumination, computer and software – must be synchronized. Difficult...
Photonics.com, March 2009
UK: Infrared Imaging Gives UK Dentists a Better Look
A team of dentists and physicists in the UK is developing an infrared imaging system for dentistry that avoids the risks associated with x-rays. Professor John Girkin and Dr. Simon Poland at the University of Strathclyde’s Institute of Photonics in...
Photonics Spectra, February 2009
Weathering the Storm
“Financial crisis.” “Economic meltdown.” “The end of Wall Street.” Call it what you will. By now everyone knows what it is: upheaval in our financial center fueled by a hemorrhaging market that, so far, even huge infusions of cash by the federal...
Photonics Spectra, February 2009
Boldly going where no one has gone before
The Phoenix Mars Lander has scoured the surface of the red planet’s Arctic circle for signs of life. On July 9, the robot took the first atomic force microscope (AFM) image ever recorded on another planet. The Lander as it would look on Mars....
Photonics Spectra, December 2008
Fiber Sensors Go 3-D
Optical fibers make ideal physical sensors. Light, rugged and immune to interference from stray electrical signals, they respond to a variety of external stimuli – qualities that have spawned extensive efforts to use them for measuring, or...
Photonics Spectra, December 2008
Freeze Frame
Researchers Ala Hijazi and Vis Madhavan at Wichita State University in Kansas wanted to study the high strain rate deformation that occurs in high-speed machining by recording a series of microscopic images at such speeds. The year was 2003, and the...
Photonics Spectra, December 2008
Putting the Squeeze on Optical Microlithography
Integrated circuits routinely produced by microlithography have feature sizes as small as 65 nm, well below the traditional diffraction limit for the exposure wavelength of 193 nm. Achieving this level of performance requires using a number of...
Photonics Spectra, December 2008
Some Like It Hot
For military and industrial applications, shortwave infrared (SWIR) has emerged as a key technology, an enabler of a variety of military and industrial imaging and sensing applications. The SWIR band, typically 0.9 to 2.6 μm, and more recently...
Photonics Spectra, December 2008
Speeding fresco reconstruction
Computer scientists at Princeton University in New Jersey have developed an automated system that could speed a painfully slow task facing archaeologists – reconstructing ancient artifacts from thousands of tiny, often-eroded pieces. David...
Photonics Spectra, December 2008
The Making of a Computer-Generated Hologram
Computer-generated holograms (CGHs) play an important role in the modern optics used for generating application-specific optical fields and functions. Their ability to transform incident beams into wavefronts is based upon micro- and nanosize...
Photonics Spectra, December 2008
Under the briny sea
In the second century of the common era, three Roman ships sank beneath the waters off the coast of Neapolis, now the site of the modern Italian city of Naples. Fourteen centuries later, off the coast of England, the Mary Rose, beloved warship of...
Photonics Spectra, December 2008
Virtual dinosaur stomping grounds
Many among us, from children on up, are fascinated by dinosaurs and long to know more about them. Photonic instrumentation has been used to help document the remains of these creatures and to determine the activities they engaged in when they roamed...
Photonics Spectra, December 2008
Building a Rainbow with RGB LEDs
In a world that is becoming more and more green-oriented, makers of LEDs are looking at red, green and blue (RGB) devices as energy-saving solutions for illumination applications. LEDs are making their mark in many areas, and one of the most...
Photonics Spectra, November 2008
Color Analyzers
Color analysis is a powerful detection tool. Its ability to ferret out information about the absorbance and reflectance properties of a material makes it ideal for identifying a range of characteristics. Applications surround us, from paint-matching...
Photonics Spectra, November 2008
Every Photon Counts, So Count Every Photon
Every photon does count, not only in research but also, increasingly, in business. Single-photon detection is at the heart of quantum communications, which offers absolute protection against eavesdropping. The technology is moving out of test beds...
Photonics Spectra, November 2008
Fatal Attraction
Since their advent in the 1980s, microelectromechanical systems (MEMS), micro-size machines with moving parts, have promised to revolutionize all aspects of industry by putting small, less power-hungry compact systems on a chip. But integrating MEMS...
Photonics Spectra, November 2008
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