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Laser Radar Watches the Friendly Skies Apr 1, 1997 — Rain, fog, high winds and snow are notorious for ruining air travel schedules. Not only do these conditions inhibit the smooth (and tightly scheduled) flow of aircraft, but they add to the air traffic controller’s burden. Laser radar research under way could help reduce weather-related delays at major airports without endangering passengers or flight crews. Laser radar is studying wake vortices (air disturbances around aircraft) to help determine whether planes at busy airports can safely fly...
Photonics Spectra, Apr 1997
Photonics in Transportation Apr 1, 1997 — Since the 1980s, the world’s burgeoning population has forced many governments to realize that they must build more efficient transportation systems or fail to meet the needs of a modern citizenry. The problem is simply defined: you can only cram so...
Photonics Spectra, Apr 1997
Stereo Displays Add A New Dimension to Work Apr 1, 1997 — If commercially available stereoscopic displays could work without special glasses and be viewed from virtually any angle, by any number of people at once, we would probably view all three-dimensional data stereoscopically. Alas, such a technology...
Photonics Spectra, Apr 1997
Applications The Key to Imager Choice Mar 1, 1997 — Unless you know the questions to ask, selecting the right imaging technology for your applications can seem more of a coin toss than an educated choice -- an outright nightmare for those uninitiated in the intracacies of solid-state imaging...
Photonics Spectra, Mar 1997
Artificial Nose Knows Chemical Odors Mar 1, 1997 — The vertebrate olfactory system is well-known for its extraordinary sensitivity and broad selectivity. Tufts University researchers have incorporated this array format into the design of a broadband optical vapor sensor.
Photonics Spectra, Mar 1997
Diode Lasers Sing Spectroscopy's Tune Mar 1, 1997 — Environmental issues such as global warming, ozone depletion and photochemical air pollution have increased concern about how pollutants affect the environment. This has led to an increased emphasis on detecting pollutants, understanding their...
Photonics Spectra, Mar 1997
Fiber Biosensors Help Decode Genes Mar 1, 1997 — Deciphering the human genome and exploring genetic variation are fueling a biomedical revolution. Diagnosis of inherited disorders and disease at the genetic level relies on the identification and detection of the responsible gene sequences. Optical...
Photonics Spectra, Mar 1997
Fiber Bundle Grows Microscopy Tools Mar 1, 1997 — Near-field optical techniques employ a single nanometer-size aperture that scans across a region of interest. Increasing the number of apertures expands the area that can be scanned at one time. Tufts University researchers have generated thousands...
Photonics Spectra, Mar 1997
Laser Technique Sniffs Out Pollutants Mar 1, 1997 — While many factors can diminish a city's quality of life, one literally takes residents breath away: smog. Traffic, industrial pollution, weather patterns and geography can turn a perfectly lovely city into a very hazy place. Cleaning the air...
Photonics Spectra, Mar 1997
Laser-Induced Fluorescence Fires Up Engine Research Mar 1, 1997 — As the world's sensitivity to environmental pollution increases, it is becoming increasingly important to understanding the overall nature of combustion. They key to this knowledge is precise and detailed measurement of the temperature, distribution...
Photonics Spectra, Mar 1997
Optical Fibers Make Sense of Chemicals Mar 1, 1997 — Optical fibers have revolutionized a variety of fields: They carry images through endoscopes, voices through phone lines, data and video through cable networks, and, more recently, physical and chemical information through sensors. The fiber's...
Photonics Spectra, Mar 1997
Stay Tuned: Photonic Filters Color Your World Mar 1, 1997 — Spectral information enhances our knowledge of astronomy, chemistry, metallurgy, and meteorology, and it contributes to applications in photonics, communications and medical instrumentation. Different specialties may use one of many spectral...
Photonics Spectra, Mar 1997
3-D Imaging Adds Depth to Science, Industry and Medicine Feb 1, 1997 — When most people over 30 think of three-dimensional video, they conjure up memories of wearing silly red/blue glasses to watch even sillier horror movies. Today, three-dimensional imaging is serious business. An impressive array of advances in 3-D...
Photonics Spectra, Feb 1997
Europe's Telcos Gird for Traffic Onslaught Feb 1, 1997 — European telecommunications companies, anticipating the demand for delivery of interactive multimedia services to business and residential customers, are busy planning for tomorrow. On the drawing boards are broadband networks designed for...
Photonics Spectra, Feb 1997
Fiber-Free Laser Communications Soar to 'Unheard of' Heights Feb 1, 1997 — When telecommunications companies first looked for solutions to the overcrowded world of wired, electronic communication, coherent light and fiber optics were there. Fiber optics brought high-bandwidth communications without the electromagnetic...
Photonics Spectra, Feb 1997
High-Power Diode Lasers Earn a New Image Feb 1, 1997 — The growth and development of continuous-wave high-power diode lasers in the last few years has been phenomenal, enabling many advances in a wide range of applications. Diodes’ efficiency, compactness and cost-effectiveness make them an excellent...
Photonics Spectra, Feb 1997
Integrated Optics: Molding Photonic Components into Solutions Feb 1, 1997 — Instrumentation and consumer product designers are enamored of photonics technology. Products containing lasers, LEDs and detectors abound on the shelves of electronics stores, appliance centers and even the corner gas station. Photonics makes new...
Photonics Spectra, Feb 1997
Spatial Light Modulators Help Machines 'See' Faster Feb 1, 1997 — Once, our eyes were all the quality control we needed. But as products became more complex -- containing more, smaller parts -- so did the need for quicker, more efficient inspection techniques. Photonics technology has mirrored the increasing...
Photonics Spectra, Feb 1997
A Bright Future for Organic Light-Emitting Diodes Jan 1, 1997 — Organic materials are part of our everyday life, but only recently have photonic devices begun to exploit their versatility. For more than 20 years it was common knowledge that organic crystals exhibited electroluminescence when large voltages were...
Photonics Spectra, Jan 1997
All Solid-State Lasers: An Industry Option with Big Potential Jan 1, 1997 — Improvements in the size, power, lifetime and ruggedness of solid-state lasers has truly improved their chances in a marketplace that sees a laser as a device and not necessarily a tool. As applications for solid-state devices grow, researchers will...
Photonics Spectra, Jan 1997
Automation Boosts Low-Cost Fiber Pigtailing Jan 1, 1997 — The explosive increase of fiber optics in communications, materials processing and medicine is driving both performance and manufacturing technology improvements in fiber optic interconnects. However, the task of accurately aligning and affixing...
Photonics Spectra, Jan 1997
CMOS Imaging Approaches Stage Three in its Evolution Jan 1, 1997 — Proving that imaging based on complementary metal oxide semiconductors (CMOS) could compete with CCDs was a multifaceted effort. The first step was developing a working product. The second phase was to prove that CMOS imaging could compete...
Photonics Spectra, Jan 1997
IR Imaging Arrays Turn to Quantum Wells Jan 1, 1997 — A new semiconductor-based infrared detector technology for mid- and long-wavelength instruments is ready for the marketplace. The quantum-well infrared photodetector (QWIP) is based on absorption by confined carriers in multiple quantum wells. QWIPs...
Photonics Spectra, Jan 1997
Laser Fusion: An Old Dream Nears Realization Jan 1, 1997 — When completed in 2002, the National Ignition Facility will culminate more than a decade of research on laser ignition: the controlled implosion of a small, hydrogen-isotope-filled target by laser beams of sufficient energy and quality to create...
Photonics Spectra, Jan 1997
Long-Period Gratings: Next Generation of Fiber Sensors Jan 1, 1997 — Fiber optic sensors, thanks to their size, flexibility and survivability advantages, continue to gain popularity as effective alternatives to conventional transducers. Two types have emerged as leaders in meeting the changing needs of industrial...
Photonics Spectra, Jan 1997
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