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Taking Semiconductor Manufacturing to the Extreme
As consumer and enterprise demand for faster computers increases, so will the demand for faster computer chips. The speed of computer chips is directly related to the number of transistors that can fit on a chip. Transistors work like switches that enable and stop the flow of electricity, which corresponds directly to the binary code of ones and zeroes that underlies all computer functions. The more transistors, the more zeroes and ones are available to make more elaborate codes. In...
Photonics Spectra, October 2009
The Photonics Industry Shines in France
“With more than 400 manufacturers of cutting-edge photonics technologies and a solid R&D base, French [photonics] companies have continuously delivered innovative new products that have ensured their strategic position in the global market,”...
Photonics Spectra, October 2009
The road to solar cell supremacy
The silicon traditionally used to make solar panels is costly and inefficient at converting sunlight into electricity, experts say, yet it remains the material most commonly used to make solar panels. “This sounds rather ugly, but silicon is the...
Photonics Spectra, October 2009
The Search for Other Earths
In recent years, astronomers have discovered more than 350 extrasolar planets, or exoplanets. But typical detection techniques are best suited for finding planets that are very dissimilar to Earth in terms of size and orbital characteristics, and it...
Photonics Spectra, October 2009
Flat Screens Go Deep – and More
The Duchess of Windsor was half right, at least as far as displays are concerned: They really never can be too thin, as evidenced by the rise of flat screens of all varieties and of displays that can be virtually anywhere. But as for being too rich,...
Photonics Spectra, September 2009
It’s Two, Two, Two Tools in One
If a surgeon is about to use a probe in the brain, the patient is sure to want that probe to be as small as possible. And three University of California, Los Angeles (UCLA), researchers have developed technology that could lead to tinier probes that...
Photonics Spectra, September 2009
Mid-IR Tunable Lasers Probe Hydrocarbon Molecules
Infrared laser spectroscopy is a powerful technique that allows unique identification of chemical species as well as study of their properties. Measuring absorption as a function of wavelength enables chemists to obtain spectra of compounds that are...
Photonics Spectra, September 2009
Northern Lights: The Photonics Industry in Canada
Canada is a pretty big place: Its surface area is 9,984,670 km2, which means that only Russia and Antarctica are bigger. And photonics is pretty big in Canada, too. The country is strong in a wide variety of photonic areas, according to a January...
Photonics Spectra, September 2009
Pico Boom
Tiny projectors, known as pico or pocket projectors, are on the cusp of becoming the next big thing as they shrink to sizes practical for embedding into ever-smaller cell phones and other mobile devices as well as head-up displays for the military...
Photonics Spectra, September 2009
Reflecting on the Past
One source rarely considered when addressing photonics issues is our ancestors: Great technological discoveries from many millennia ago may lead to modern day solutions. A recent example of this involves optimizing gold-based infrared reflectors...
Photonics Spectra, September 2009
Sensors on the Frontiers of Physics
Computer chips based on light as opposed to electricity have only been theorized, but now researchers are actually developing computer chips that will use light for computer functions. At Yale University in New Haven, Conn., members of Hong...
Photonics Spectra, September 2009
All the Energy You Need … from Tiny Leaves
On a warm summer afternoon, you may find yourself on a leisurely walk through bucolic meadows or toiling under the glare of the sun because the lawn just won’t mow itself, but why not let the grass do some work and earn its keep? Grass, as does...
Photonics Spectra, August 2009
East Asia Photonics Industry: Rising to Opportunity
Views from China Affected by the global economic downturn, the output of some optical manufacturing enterprises in China hit bottom between the fourth quarter of 2008 and the first quarter of 2009, but production has been going up from the...
Photonics Spectra, August 2009
For Laser Diodes, It’s a Material World
Despite the economic downturn, laser diodes keep on pumping – sometimes literally. They often provide the pump for fiber lasers, a market segment that is still relatively strong. However, laser diodes are more than just sidekicks. They also are very...
Photonics Spectra, August 2009
Getting it right with high-performance ISR windows
High-precision windows used for intelligence, surveillance and reconnaissance (ISR) applications can be as large as 0.9 m and must be transmissive at various visible and infrared wavelengths, with a significant focus in the IR. End-user applications...
Photonics Spectra, August 2009
Improving Human Interactions in the Science Lab
Although scientists need to interact with one another in a laboratory environment, they typically receive no training in resolving interpersonal conflicts. According to Carl M. Cohen, a management consultant who specializes in training scientists,...
Photonics Spectra, August 2009
LEDs Shine at Work
Technology is the great catalyzer, catapulting the LED industry forward by enhancing existing applications and enabling new ones. Many technological advances are pushing LEDs away from the old single-color realm where they were used for specific...
Photonics Spectra, August 2009
Multiplexing UV-NIR Spectroscopy Measurements
Optical coating of large areas has become an increasingly important step in materials processing. Achieving the highest possible performance and respective yield from large panes of architectural glass, solar cells and thin-film layers requires...
Photonics Spectra, August 2009
New Shine on Old Gems
Newly developed Cr3+ laser crystals called LIGO and LISO, developed at the Institute for Ultrafast Spectroscopy and Lasers (IUSL) at City College of the City University of New York, extend the family of ruby and alexandrite lasers operating in the...
Photonics Spectra, August 2009
Surface-Emitting Laser Array
High-power, multimode laser diodes are workhorses for many industrial applications. They are used as tools for cutting, welding, sintering and soldering various materials and as pump sources for fiber, disk and solid-state lasers. Many of these...
Photonics Spectra, August 2009
The Devil Is in the Details
Ultrafast lasers – with femtosecond or picosecond pulse widths – support a growing range of applications, from precision micromachining to multiphoton imaging to attosecond physics. Titanium:sapphire is the most widely used gain material in...
Photonics Spectra, August 2009
A Wave Plate for Every Application
The applications for wave plates are many and varied. They can find use in areas such as power attenuation of a laser and optical isolation. In biomedical applications, wave plates are used to determine the polarization of body fluids in microscopes...
Photonics Spectra, July 2009
Australian Agenda: No Great Barriers?
With the launch of the Institute of Photonics and Optical Science (IPOS) in April 2009, scientists at the University of Sydney in New South Wales, Australia, now can draw on the research and teaching expertise of the university’s schools of physics,...
Photonics Spectra, July 2009
Avoiding failure: Advanced metrology finds tiniest defects in semiconductor materials
Chip features are small, and the defects that make them fail, even smaller. What is more, inspecting chips must be done on an assembly line, where throughput is crucial. Add to that layers of reflective and other obscuring films, and you have a...
Photonics Spectra, July 2009
Commercializing the Nobel-Winning Discovery of the Bose-Einstein Condensate
Bose-Einstein technology reduces production time and cost for "ultracold" matter experiments.
Photonics Spectra, July 2009
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