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Optics Features
Photolithography Improved Without UV Light
As computer chips become smaller and more powerful, it is important that their features remain precise. The fact that smaller light wavelengths create smaller features has demanded that developers and manufacturers use expensive and difficult to work with ultraviolet light as the basis for such photolithographic nanofabrication – until now.
Photonics.com, April 2009
Germany: Moving Ahead in Markets and Technology
Germany holds a strong position in optics and photonics technologies, including test and measurement, imaging and optical manufacturing. Here is what I see as the most interesting market and technology activity: Industrial plant and...
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
Faster, Stronger, Higher:
Lighting, specialized optics and other technologies that can be labeled “protophotonics” were being used in sporting contests long before night games were played at Wrigley Field, but bright lights and television cameras have become old standbys,...
Photonics Spectra, October 2008
Photonics with a French Twist
An official competitiveness cluster since 2005, the Route des Lasers (or Laser Highway) operates similarly to a trade association. Located in the Aquitaine region of France, stretching from the city of Bordeaux to the Arcachon basin on the Atlantic...
Photonics Spectra, October 2007
Diverse Photonics Research Part of University's Curriculum
The Center for Research and Education in Optics and Lasers (CREOL) has been in existence since 1986 at the University of Central Florida (UCF) in Orlando and recently morphed into the first US college devoted solely to optics — The College of Optics...
Photonics Spectra, June 2007
Market Forecast: Positive for Machine Vision
The machine vision and imaging industry experienced strong growth in 2006, a trend that is expected to continue in 2007, according to a study published recently by the Automated Imaging Association (AIA) of Ann Arbor, Mich. The report, titled...
Photonics Spectra, June 2007
Making Lasers from Dust
Anyone with optics experience knows that dust should be avoided as much as possible. It can contaminate optical surfaces, degrading performance and, sometimes — on the output facet of a diode laser, for example — cause disastrous optical damage....
Photonics Spectra, February 2007
A Wealth of Opportunities from a Little Generosity
At heart, I’m a scientist and an engineer. I enjoy the process of figuring out how things work and how various pieces fit together to make an efficiently functioning system. The challenge of solving problems, whether in optics, information...
Photonics Spectra, January 2007
Robust Light Propagated in Ultralarge-Mode-Area Fibers
In the past few years, ytterbium-doped fiber lasers have achieved diffraction-limited outputs at multiple kilowatt levels, and they now compete with or surpass their more complex counterparts: bulk, solid-state lasers. An all-fiber approach offers...
Photonics Spectra, September 2006
Tip-Enhanced Raman Spectroscopy Images Buried Nanoscale Features
Thanks to researchers at the University of Rochester in New York, looking below the surface may be easier — at least on a small scale. Using tip-enhanced Raman spectroscopy, the group has mapped buried features with 30-nm resolution and has...
Photonics Spectra, June 2006
ZnO-Based Blue-Violet LEDs Fabricated on Sapphire
inc oxide has been investigated as a green fluorescent material for many years. Now researchers are looking at it for use in UV and blue emitters. It offers thermal stability and resists chemical attack and oxidation, and its exciton binding energy...
Photonics Spectra, April 2006
Slow Light: From Basics to Future Prospects
The speed of light in a vacuum is a quantity that defies human comprehension. A flash of light travels across a football field so quickly that it appears instantaneous; it is only through the use of modern high-speed photoreceivers that we can...
Photonics Spectra, March 2006
The Dirt on Cleaning Optics
Anyone who has worn glasses or driven a car knows the detrimental effects of dirt on the performance of a lens or window. The effects can be more serious in optics setups that involve laser radiation. Precision optics should be handled properly...
Photonics Spectra, March 2006
Commercial Applications of Optoelectronics
Optoelectronics is at the crossroads of electronics and optics. Using optical and electronic means, it generates, manipulates and converts light. Photonic devices process, store, transmit and display information for applications such as...
Photonics Spectra, February 2006
USB Improves Functions and Portability for Beam Profilers
In consumer products, the universal serial bus (USB) increases convenience and improves function, and it has enabled the widespread adoption of new technologies. For example, USB connectivity in digital cameras has helped to transform the PC into a...
Photonics Spectra, February 2006
Machine Vision Market Shows Progress
The machine vision market saw strong growth in 2004, and the Automated Imaging Association in Ann Arbor, Mich., expects that 2005 also will prove to have been a positive year, although not at the same level. The worldwide market for machine...
Photonics Spectra, January 2006
Understanding Lenses: Aplanats and Achromats
Optics terminology can be confusing, but it is critical to be fluent in the language when searching for and specifying optical components. This is especially true for multielement lenses, the two most basic of which are aplanats and...
Photonics Spectra, July 2005
Nanophotonics Heads into the Third Dimension
Scientists at the University of California, Los Angeles, have demonstrated a way to exploit the third dimension to create tiny optical components. Going vertical should enable the fabrication of densely integrated optical structures and offer...
Photonics Spectra, June 2005
Adaptive Optics Reveals Details on Galaxy Collisions
The dynamic interaction of galaxies is believed to play a fundamental role in stellar evolution. The compression created in interstellar gas as two galaxies collide can cause shock waves that trigger the formation of stars composed of a different...
Photonics Spectra, April 2005
Interoperability in Optical Design Tools
Today's photonics market is demanding optical design tools that not only are powerful and easy to use, but that also work well with a company's already-established set of software tools. Optical, mechanical, dynamic and other software tools work...
Photonics Spectra, October 2004
Nanocrystalline Cerium Oxide Improves Glass Polishing Operations
Performance improvements are increasingly being sought in a variety of technologically advanced polishing applications related to the optics and microelectronics industries. From the production of photomask blanks to the fabrication of memory and...
Photonics Spectra, August 2004
Ferroelectric Liquid Crystals Put on a Good Show
Microdisplays are miniature, high-resolution displays that typically measure 1 cm diagonally and whose use requires magnifying optics. These displays can be transmissive, reflective or emissive. The transmissive type based on twisted nematic liquid...
Photonics Spectra, July 2004
Semiconductor Inspection Moves to Deep-UV Imaging
Fueled by the ever-decreasing size of features on semiconductor wafers, the semiconductor inspection industry continues to focus on shorter-wavelength light (Figure 1). Increasingly, the manufacturers of wafer and reticle (photomask) inspection...
Photonics Spectra, July 2004
Light Engines Enhance Machine Vision Illumination
Even the most sophisticated machine vision system will fail if the lighting isn’t right. Variations in intensity, poor color rendering or even a simple lack of brightness can affect imaging system performance, and any vision system design must...
Photonics Spectra, March 2004
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May 2024
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