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Photonics Spectra - October 1999
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Issue Library
Features
Plastics Learn to Love Lasers
For many years, Nd:YAG, CO2 and high-power semiconductor lasers have been successfully cutting, welding and marking on metals, ceramics and other materials. You need look no further than your...
From Earth to Space, Lasers Take on Pollution
Recent advances in solid-state-laser and nonlinear optics technology are increasing the performance, versatility and reliability of the lasers that we can design into sensing systems. The monitoring...
Remote Sensing Methods Monitor Natural Resources
Advances in hyperspectral imaging can provide the information needed to help protect and redevelop wildlands. Environmental scientists are concerned about the impact of changing land use and habitat...
Water Researchers Perfect Monitoring Techniques
Microbiologists in California’s Orange County use a wide range of microscopy and imaging techniques to examine the organisms within the local water supply. New laser and fluorescence systems...
Tech Pulse
Airborne Laser Window Nears Completion
Pittsburgh’s Contraves Brashear Systems LP has accepted the conformal window for the US Air Force’s Airborne Laser Program. The company will polish, coat and install the 340-lb, 1.8-m-diameter window in a composite turret ball from Lockheed Martin Missiles & Space of Sunnyvale, Calif. Heraeus Quarzglas GmbH of Hanau, Germany, and its subdivision, Heraeus Amersil of Duluth, Ga.,...
Air Force Telescope Open to Researchers
The director of the US Air Force’s Office of Scientific Research, Joseph Janni, announced that civilian astronomers will be allowed to use its 3.67-m telescope on Haleakala in Maui, Hawaii,...
Algorithms Improve Spectral Imaging
An imaging spectrometer in an airplane or satellite can picture the Earth’s surface while simultaneously detecting the broad range of radiation wavelengths that emanate from each pixel. More...
Algorithms Improve Spectral Imaging
A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid...
Lasers Break an Optical Barrier
A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid...
Semiconductors Deposited in Fiber Preforms
Researchers at Syracuse University have developed a technique that could lead to the production of more efficient optical fiber devices. They employed optical deposition to create fiber preforms with...
Dense Wavelength Division Multiplexing Components Promise 1.7 Tb/s Transmission
Researchers at Fujitsu Laboratory Ltd. in Richardson, Texas, a division of Fujitsu Network Communications Inc., have developed components that the company says will enable its 320-Gb/s Flashwave...
Camera Images the Unseen Eclipse
A complementary metal oxide semiconductor (CMOS) video camera attached to a 400-mm reflector telescope produced black-and-white images of the Aug. 11 total solar eclipse with details never before...
Multimode Fiber Transmits at 10 Gb/s and over 3000 m
Separate tests performed on the 50-µm InfiniCor multimode fiber, which is produced by Corning Inc. of Corning, N.Y., demonstrated serial transmission at 10 Gb/s over 600 m and at Gigabit...
FireMapper Gets Set for Flight
The FireMapper multispectral radiometer is being prepared for airborne deployment next year by the US Department of Agriculture’s Forestry Service. The device, manufactured by Space Instruments...
2-m Telescope Takes Its First Look
EOS Technologies Inc. (EOST) in Tucson, Ariz., hosted a "first light" party to demonstrate the research potential of its 2-m-aperture telescope before its permanent installation next year. The...
Laser Optics Improve Gasoline Yield
Fluid catalytic cracking of oil feedstocks produces a large portion of the US gasoline supply. This process relies on dispersion-steam-assisted nozzles to atomize the feedstocks. Thus, optimizing...
Interferometer Seeks Gravity Waves
A team of researchers at the California Institute of Technology in Pasadena used a laser interferometer to look for the gravity waves that Einstein predicted in his general theory of relativity. The...
Green Organic LED Shows High Efficiency
LOS ANGELES -- An organic light-emitting diode (LED) that relies on electrophosphorescence may prove a breakthrough in organic LED efficiency, with quantum and power efficiencies reaching 8 percent...
Optical Holes Produce Better Memories
With today’s technology, compact discs hold about 1 bit of information per square micron. Associate professor of physics Zameer Hasan and colleagues at Temple University have devised a way to...
Hybrid Laser Expands Imaging Range
There is potential for a laser that simultaneously produces output at multiple wavelengths in remote sensing, environmental testing and biomedical imaging. Such a device would be a boon for the...
Best Lasers May Be Misanthropes
ALBUQUERQUE, N.M. -- Quantum dots are antisocial, and that’s good news for Sandia National Laboratory researchers who want to make better lasers. Quantum dots, atomic islands of material that...
Laser Missile-Jamming System Passes Tests
A laser-based directional infrared countermeasures system that was demonstrated by Northrop Grumman Corp.’s Electronic Systems and Sensors Sector in Rolling Meadows, Ill., passed 10 hours of...
MOEMS Advance
MAINZ, Germany -- Researchers discussed developments and obstacles at the Third International Conference on Micro Opto Electro Mechanical Systems (MOEMS). Organized by the Institut fur Mikrotechnik...
Monolithic Mosaic Gratings Are Ready for Subaru Telescope
Richardson Grating Laboratory of Rochester, N.Y., completed the production of three mosaic diffraction gratings for the recently constructed Subaru telescope atop Mauna Kea in Hawaii. The monolithic...
Optoelectronic Devices Go Organic
CAMBRIDGE, UK -- Light-emitting diodes made from organic polymers were first developed at Cavendish Laboratory a decade ago. Now researchers at Cavendish have taken this technology a step further....
Lasers Jump-Start Catalytic Research
How do you study chemical processes that last only an average of 100 femtoseconds? And how do you ensure that you are observing just the effects of that particular activity?Researchers at the Fritz...
Fiber Optics Keeps the Fleet Shipshape
Researchers at Systems Planning and Analysis Inc., with funding from the Office of Naval Research in Arlington, Va., have produced a low-cost fiber optic network that will monitor the structural...
Piezoluminescent Skin Senses Stress
Physicists in Saga, Japan, deposited a film on a ceramic substrate that emitted strong visible light when it was mechanically stressed. The researchers from Saga University and the Kyushu National...
Superradiant Scattering
CAMBRIDGE, Mass. -- Researchers at the Massachusetts Institute of Technology studied Rayleigh scattering off a Bose-Einstein condensate, an experiment that produced superradiant scattering. As...
Research Trio Demonstrates AlGaN Camera That Images in UV, Digitally
North Carolina State University in Raleigh, Night Vision Laboratory at Fort Belvoir, Va., and the Honeywell Technology Center of Minneapolis have completed a demonstration of a semiconductor-based,...
Ultrathin Films Retain Bulk Properties
UNIVERSITY PARK, Pa. -- Polymer films less than 100 nm thick have molecular properties nearly identical to the same material in bulk, according to recent findings of a study published in the July 8...
Human Vision Simplifies Sensing Technique
A fluorescence detection method that uses the human eye as a key component promises to take fluorescence analysis out of the laboratory and into the field.Developed by scientists at the Center for...
German Researchers Employ Fiber Laser to Weld a Fine Seam
Scientists from the Laserzentrum Fachhochschule Münster in Steinfurt, Germany, and the Technische Universitat Chemnitz reported that they seam welded stainless steel foil with a joint smaller...
light speed
Microtechnology Forecast Is Bright
According to a report from Business Communications Co. Inc. in Norwalk, Conn., sales of microelectromechanical systems, micromachines and microsystems will experience an average annual growth rate of...
Cisco Rivals Fiber Optic Giants
The $7.4 billion acquisition of Cerent Corp. of Petaluma, Calif., and Monterey Networks Inc. of Richardson, Texas, signals the entry of the San Jose, Calif.-based Cisco Systems Inc. into the...
National Ignition Facility Scientist Resigns; Laser Program Faces Delays
E. Michael Campbell III, the head of the $1.2 billion National Ignition Facility project at Lawrence Livermore National Laboratory in Livermore, Calif., resigned from his post when it was revealed...
Laser Sales Drop 6 Percent
North American manufacturers of laser systems and industrial laser sources reported that shipments in the second quarter of 1999 were down 6 percent from the levels of the second quarter in 1998....
Bitter Dispute over Trade Secrets Ends Partnership
RICHMOND, British Columbia, Canada -- Xillix Technologies Inc. has filed in Tokyo for arbitration of a dispute with its former partner, Olympus Optical Co. Ltd. of Tokyo. Xillix, a developer of...
Gender Salary Gap Is Less in Engineering
A study funded by the National Science Foundation reported that the salaries of female and male engineers do not reflect the disparity that is endemic to other occupations in the US. The researchers...
Intelligent Sensing Market Sees Growth on the Horizon
Analysts at Business Communications Co. Inc. in Norwalk, Conn., predicted growth in the market for all intelligent sensing systems. Burgeoning trade in vision chips, electronic noses and artificial...
Kidger Optics Announces Scholarship
Kidger Optics Ltd. of Crowborough, UK, a designer and supplier of optical design software, announced that it is accepting applications for its Michael Kidger Memorial Scholarship. The scholarship,...
Bar-Code-Scanner Makers File Suit against Lemelson Foundation
RENO, Nev. -- Seven manufacturers of bar-code scanning and printing equipment have jointly filed suit in federal district court in Nevada against the Lemelson Medical, Education and Research...
Flex Products Will Supply Banknote Pigment to China
Flex Products Inc., a subsidiary of Santa Rosa, Calif.-based Optical Coating Laboratory Inc., will establish a manufacturing facility in China that will produce the company’s patented optically...
Presstek Alleges Patent Infringement
HUDSON, N.H. -- Presstek Inc., a maker of laser-based computer-to-press print heads, has notified Creo Products Inc. of Burnaby, British Columbia, Canada, that it is infringing Presstek’s...
Managers Know Synergy When They See It
CHAMPAIGN, Ill. -- US investors in American photonics and high-tech companies are likely to get more return from a merger if the buyer is a foreign company. That was the surprise finding from a study...
Accent on Applications
US Air Force Orders United Industrial's Boresight Systems
United Industrial Corp. reports that its AAI Corp. Defense Systems subsidiary has received an order from the US Air Force for four Advanced Boresight Equipment (ABE) systems. According to United...
Cymer Names Farrar Director of Lithography Applications
Cymer Inc. has named Nigel Farrar, formerly of Hewlett-Packard, as director of lithography applications for the company. As head of this new department, which was created to explore critical factors...
Imaging Software Compares with Confocal Microscopy
Access to confocal microscopes can often be limited and, if there is a usage fee, costly. This and other trade-offs to confocal microscopy’s high-resolution, three-dimensional images has sent...
Spatial Light Modulator Displays Another Dimension
Contrary to assertions made in popular culture, outer space is merely the penultimate frontier. The final frontier is virtual space, where three-dimensional real-time images, such as those produced...
Moving Sky Espied by Digital Eye
Scientists estimate that there are between 1000 and 2000 asteroids capable of colliding with Earth and causing a mass extinction similar to the one that brought down the curtain on the dinosaurs....
Vision System Helps Correct Herring Problems
They may be fish eggs to you, but each year Japanese sushi bars hatch a market that averages more than $100 million just for herring roe fished from the coastal waters off both British Columbia,...
Laser Stops Proteins in Their Tracks
Roughly 100,000 different proteins function as the workhorses of the human brain. They act as chemical agents, delivering and receiving neural messages, and help to construct or reconstruct neural...
Laser Vibrometer on Track Toward a Quieter Highway
Most citizens welcome the boost to local business that comes with a new or an expanded highway system, but few want traffic flowing anywhere near their back yards. Sound barriers erected along...
Presstime Bulletin
Cassini Probe Tests Cameras
The Cassini orbiter, which is scheduled to rendezvous with Saturn in mid-2004, tested its imaging system during a 700-mile-high flyby of Earth in August. The Cassini Imaging Central Laboratory for...
2-kHz Deep-UV Laser Installed for Photolithography
Komatsu Ltd. in Tochigi, Japan, announced that it has installed its 2-kHz deep-UV laser at a major Japanese chip manufacturer’s production facility. The device, known as the G20K, incorporates...
Researchers Create Fermi Degenerate Gas
A collaborative project between scientists from the National Institute of Standards and Technology and the University of Colorado at Boulder used laser cooling to produce a gas of degenerate...
Leaky Lab Produces Metallofullerenes
Researchers at Virginia Polytechnic Institute in Blacksburg reported in the Sept. 2 issue of Nature that their leaking equipment, sharp eyes and prodigious appetite for coffee have yielded an...
Products
LINE-SCAN SENSOR
The IT-F6 sensor from Dalsa is a high-speed, high-sensitivity line-scan CCD sensor with enhanced blue response. The device is available with 2048-pixel resolution and 13 x 13-µm pixel size, and...
Teledyne DALSA, Machine Vision OEM Components
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OPTICAL SENSOR
The Q82232 optical sensor from Tektronix Inc. is designed to characterize polarization-dependent loss in dense WDM systems and associated wavelength-dependency characteristics in optical devices. The...
Tektronix Inc.
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INTEGRATED CIRCUIT
Vitesse Semiconductor Corp. developed the VSC9112 integrated circuit for STS-48c packet over SONET and ATM over SONET applications. The device affords traffic monitoring capabilities at the SONET/SDH...
Vitesse Semiconductor Corp.
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COLOR MACHINE VISION SYSTEM
Omron Electronics Inc. has introduced a color machine vision system that can use several color detection methods. The F400 does not require programming, and all system setup and use is controlled by...
Omron Automation
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COLOR FRAME GRABBER
The MVS-8100C from Cognex Corp. is a high-performance, application-specific PCI frame grabber for acquiring and displaying color images. It provides real-time image transfer to the host PC for...
Cognex Corp.
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LABORATORY CAMERA
The Silicon Eyeball from Data Optics Inc. is designed for applications where using the naked eye is not feasible, such as when the experiment is enclosed, a laser is in use, the space is limited or...
Data Optics Inc.
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MACHINE VISION
Imaq Vision from National Instruments is designed to help end users, integrators and OEMs accelerate the development of industrial machine vision and scientific imaging applications, such as solder...
National Instruments Corp.
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MICROMINIATURE MONOCHROME CAMERA
The IK-M41MA microminiature camera from Toshiba America Information Systems Inc. is suitable for high-speed assembly line and packaging applications. It features 570-line resolution, better than...
CANON MEDICAL COMPONENTS U.S.A., Video Sensing Devices
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COLOR SMART CAMERA
The VC65/C color industrial smart camera from Vision Components is a complete machine vision system with 24-bit color capability and a progressive-scan CCD sensor. The device, which measures 117 x 50...
Vision Components GmbH
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SUNSHINE-LEGIBLE DISPLAY
Luxell Technologies Inc. has announced the release of its BlackLite flat panel display in a 1/4 VGA size for commercial and industrial uses. The LX-I-320 x 240.80 utilizes the company's Black Layer...
Luna Innovations Inc.
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BEARING LUBRICANT
Rheolube 716R, a bearing grease developed by Nye Lubricants Inc., is suitable for applications that require low bearing noise. Quiet greases typically are used in AC/DC electric motors, computer...
Nye Lubricants Inc.
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CUVETTE HOLDER
Ocean Optics Inc. offers a cuvette holder that attaches directly to the company's light sources and, via optical fibers, to its spectrometers. The result is a small-footprint spectrophotometric...
Ocean Optics - Part of Ocean Insight
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SPATTER SHIELDS, MOUNTS
Lens Savers windows, the disposable shields from the Lens Saver Div. of International Crystal Laboratories, protect CO2 and YAG laser optics from spatter damage. The company says that laser operators...
International Crystal Laboratories
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UNIVERSAL SUBSTRATE
Applied Optoelectronics Inc. has released a 2-in. compliant universal substrate that is suitable for epitaxial growth of any III-V materials, regardless of lattice constant. A multilayer epitaxial...
Applied Optoelectronics Inc. (AOI)
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STEREO-ZOOM SCOPE
A stereo-zoom microscope unveiled by Vision Engineering Inc. produces high-resolution images of up to 120x on a large viewing area. The Lynx uses patented Dynascope technology and features a standard...
Vision Engineering Inc.
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ANALOG/DIGITAL LASER
LaserMax Inc. has introduced an optional feature to its LFX family of diode lasers. The standard self-contained laser systems are offered in analog or digital output control configurations. The new...
LMD Power of Light Corp. dba LaserMaxDefense
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LASER COATINGS
Laser Components Inc. offers ion-assisted deposition coating for laser components. The company says components coated using this technique can withstand the high power densities of industrial Nd:YAG...
Laser Components Germany GmbH
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LASER COUPLER
Casix Inc. has announced a laser coupler for 650-nm lasers. The device includes a gradient index lens collimator, 2 m of 4-µm-core single fiber, and either an FC or SC connector. These elements...
CASIX Inc.
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LASER DEFLECTION
Scanlab AG's powerScan 33 is a two-dimensional, galvanometer-based beam deflection system designed for high-power lasers. The system has a usable aperture of 33 mm, and it integrates air- and...
SCANLAB GmbH
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HIGH-CURRENT LASER DIODE DRIVER
A quasi-continuous-wave laser diode driver available from Coherent Inc., Semiconductor Group, is designed to drive laser diode bars and stacks at high average powers. The air-cooled driver delivers a...
Coherent Inc.
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HIGH-POWER DIODE LASER
Available from Roithner Lasertechnik is a ready-to-use diode laser system that comprises a laser diode; a cooling head with TE cooler, thermistor and cooling fan; and a laser diode driver for...
Roithner Lasertechnik GmbH
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LED LIGHT BARS
Lumex Inc. has expanded its line of light-emitting diode light bar products to more than 70 parts numbers in eight basic package styles. The devices use LED chips with a molded reflector lightguide,...
Lumex
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MACHINE VISION LIGHTING
Volpi Manufacturing USA offers LED illumination products for machine vision applications. The light sources are available in a range of wavelengths, including red and white. The company says that its...
Volpi USA
AMP CALIBRATION
Anritsu Co. has announced the release of an automatic calibration unit for its ME7890A optical amplifier test system. The unit calibrates the system while it is connected to a device under test,...
Anritsu Co.
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DC POWER SUPPLY
Diversified Technologies Inc.'s PowerMod HVPS-30 power supply can provide 30 kW at up to 30 kV. It has switching speeds up to 200 kHz with low stored energy on the output to eliminate crowbars in...
Diversified Technologies Inc.
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OPTICAL CEMENTS
A line of UV-curing optical adhesives is available from Summers Optical. It includes bonding agents for glass, metal and plastic substrates. With varying viscosities, refractive indices and curing...
Summers Optical
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KTP CRYSTALS
Raicol Crystals Ltd.'s KTP crystals resist the gray-track laser damage in second-harmonic generation applications. The company says that these crystals have greater resistance than hydrothermally...
Raicol Crystals Ltd.
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BIREFRINGENCE MAPPING
Hinds Instruments Inc.'s Exicor is a low-level birefringence mapping system for characterizing optical materials. Using the company's photoelastic modulator technology, Exicor measures the...
Hinds Instruments Inc.
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FAST SAMPLING
Microstar Laboratories Inc. introduces its DAP 4400a/446, a PCI data acquisition processor board that has been optimized for simultaneous sampling. Each of the four analog-to-digital converters can...
Microstar Laboratories Inc.
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MATERIALS INSPECTION
McPherson Inc. has developed the VUVaS series dual-beam scanning vacuum spectrophotometer, which measures lithography optics down to 115 nm. The test station can inspect and analyze materials and...
McPHERSON
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CALIBRATION SERVICE
ILX Lightwave Corp. offers on-site calibration for all of its ILX test and measurement equipment, including fiber optic power and wavelength meters, fiber optic sources, laser diode controllers and...
Newport - ILX Lightwave, Photonics
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DENSE WDM TEST AND MONITORING SYSTEM
Digital Lightwave Inc. has developed a centralized dense wavelength division multiplexing (WDM) test and monitoring system that enables communications service providers to monitor, test and resolve...
Digital Lightwave Inc.
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