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Photonics Spectra - June 1997
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Issue Library
Features
Rapid Prototyping:
Automotive, electronics and medical design engineers are among the myriad professionals who have found that laser-based rapid prototyping technology can quickly turn their CAD drawings into full-scale models or even production parts. This popular technology has enabled many thousands of companies to speed up their new product designs, but one barrier to additional growth has been the trade-off...
Replicated Optics:
Military, space, industrial and scientific imaging applications share similar needs for low-cost, high-quality, lightweight optical elements. Recent advances in the quality and availability of...
Industry to Researchers:
Industrial users say they are willing -- eager, even -- to adopt novel manufacturing technologies that can improve their processes and products. "I doubt that you will find a bigger or better...
Laser Techniques Make Surfaces Spotless
Surface contamination by microscopic particles is currently one of the most serious problems facing the microelectronics industry. As much as 50 percent of yield losses could be attributable to...
High-Power Lasers:
If "better, faster, cheaper" is the motto of industry, it follows that the phrase would be the guiding vision of industrial sequipment suppliers, such as high-power laser manufacturers.Laser cut,...
Tech Pulse
Air Force Lab Chills IR SensorsInternational Team Takes Mid-IR Laser Step
Scientists have moved a step closer to achieving a tunable, mid-infrared semiconductor laser, demonstrating an intersubband stimulated emission.A team of researchers from the University of Illinois and the University of Paris conducted tests revealing that emitted photons confined in a testing device long enough induce more emission by other excited electrons. The researchers say this phenomenon...
New Cantilever Boosts SFM Resolution
STANFORD, Calif. -- Stanford University researchers have combined an interferometric diffraction grating with light-reflecting scanning force microscope cantilevers in a way that could result in a...
Integrated Circuit Uses 'Critters' to Detect Contamination
OAK RIDGE, Tenn. -- What's half living, half machine and can sniff out pollutants and chemicals in a single whiff? The latest microsensor technology from the US Department of Energy's Oak Ridge...
Conoscopy Measures with High Resolution
JERUSALEM -- Manufacturers of electronic components and data storage equipment are among those who can benefit from the high (up to 0.04 µm) resolution of gauging instruments based on conoscopic...
Supercooling Technology for Satellites
The US Air Force and NASA have developed a supercooling technology for satellites that enhances the performance of onboard infrared sensors.Launched aboard the space shuttle Columbia in April, the...
Corning Completes Telescope Mirror Blank
Corning Incorporated has delivered the second of two mirror blanks for the GEMINI project telescope, a multinational collaboration including the US, UK, Canada, Chile, Argentina and Brazil. The...
Crystal Films Grow on 'Universal' Substrate
Cornell University researchers are in the preliminary stages of demonstrating that crystals of any material can be grown on a substrate. If the technique proves successful, it could open the door for...
Dutch Group Monitors Laser Deposition
Pulsed laser deposition creates complex oxide thin films such as high-Tc superconductors, but it works only under high oxygen pressure (up to 100 Pa). Reflection high energy electron diffraction...
IR Instrument Vows Early Warnings of Volcanic Eruptions
TEMPE, Ariz. -- Hollywood's recent fantastic images of fiery lava engulfing entire cities might be a slight exaggeration, but the danger of volcanoes to humans is all too real, especially to...
Lab Produces Tunable Mid-IR Laser
Researchers at Lucent Technologies' Bell Laboratories have produced a pulsed, single-mode laser tunable in the mid-infrared range. The group achieved peak optical powers up to 60 mW at 300 K with a...
New Photoresist Shrinks Features
SAN FRANCISCO -- Integrated circuit manufacturers are taking a very close look at a single-layer photoresist that scientists say will support component design smaller than 0.18 µm, with the...
Polymer Connectors Challenge Costlier Rivals
HARRISBURG, Pa. -- As the saying goes, you get what you pay for. But according to a new study, the fiber optics industry could be getting more than that.Researchers at AMP Inc., a manufacturer of...
Researchers Predict Multicolor LED World
ROCHESTER, N.Y. -- Dreams of ultrathin displays for computer and television screens could become a reality, thanks to a plastic light-emitting diode that emits light in several colors.LEDs are...
Ring Monitors Homebound Patients
CAMBRIDGE, Mass. -- It resembles a cross between a trinket in a gumball machine and a space-age gizmo seen on Star Trek. Despite its curious appearance, this newly developed photosensor ring performs...
Photonics Solves the Wafer Temperature Problem
SANTA CLARA, Calif. -- As a semiconductor wafer wends its way through the fabrication process it passes through several stages where thermal processing plays a key role.Conventional techniques...
Speedy Camera Finds Undersea Mines
Scientists at Los Alamos National Laboratory have found a way to detect underwater mines over vast expanses of ocean by employing a camera system developed to image nuclear tests in the 1960s.A...
'Superlattice' Laser Achieves Record Power in the Mid-IR
MURRAY HILL, N.J. -- Lucent Bell Laboratories researchers have reported measuring peak power of 750 mW from a pulsed 8-µm laser at liquid nitrogen temperatures.The device, a quantum cascade...
Tiny Images Could Win Big
Nikon Inc. is conducting its 23rd Annual Nikon International Small World Competition, honoring excellence in photography through a microscope.Each participant can submit up to three 35-mm...
Zinc Oxide Holds Promise as LED Material
In the quest to produce efficient and lasting blue light-emitting diodes, one material has been largely overlooked -- zinc oxide.Although ZnO has a room-temperature band gap of 3.37 eV and high...
light speed
AT&T Offspring Plans Undersea Network
MORRISTOWN, N.J. -- Tyco Industries has adopted AT&T progeny Submarine Systems Inc. (SSI), and already the undersea telecommunications company is showing its new parent that it learned a lot from Ma Bell.Submarine Systems has announced its own fiber network, Atlantic Crossing I, which will link the US, the United Kingdom and Germany. The route will span more than 14,000 km.Submarine Systems,...
Basic Research Funds Down, Facilities Demand Up
The collapse of the Soviet bloc and the rise of free-market systems has resulted in reduced funding for most types of scientific research in academic institutions worldwide.That's the view of Steven...
Coherent Launches Catalog Business After Acquiring Ealing
SANTA CLARA, Calif. -- Following its $9.5 million purchase of Ealing Electro-Optics plc last month, Coherent Inc. established its first-ever catalog division, which will become part of the Coherent...
Food, Transportation Are Vision Growth Areas
The semiconductor and electronics industries remain the largest consumers of North American machine vision systems, but food and transportation are also key markets, according to a study that the...
Renishaw, EIC Collaborate on Raman Spectroscopy
Renishaw has forged a union with EIC Laboratories Raman Systems Div. to offer both instruments and applications in Raman spectroscopy. The partnership takes advantage of Renishaw's expertise in the...
Spy Satellite Agency Mired in Bureaucracy
The nation's spy satellite agency, the National Reconnaissance Office, is no longer considered a technology leader, according to a newly declassified review by an independent panel.The report says...
Study: Quality More Important than Price
Venture Development Corp.'s report on airborne intelligent display/analog-to-digital converter equipment and system resellers said quality remains the most important criterion in selecting a vendor....
Universities: Economic Impact Justifies Funding
CAMBRIDGE, Mass. -- In recent years federal funding of R&D has fallen victim to the balanced-budget gods. With the prospect of that trend continuing (See "R&D Funding Faces Hard Times: The...
WDM to Assume Greater Role in Telecom
As telecommunications carriers search for more bandwidth to meet the demands of an increasingly information-hungry consumer, wavelength division multiplexing (WDM) will continue to grow in...
Accent on Applications
Photonic Components Team up to Speed Weld Joint Analysis
A manufacturer of specialty coils for the automotive industry turned to Concepts in Computing in Beloit, Wis., to find a cost-efficient, effective way to test the electrical bond of coil leads that are wrapped around connecting legs and then welded. For a variety of reasons, including poor wire stripping, the bonds were not always perfect. The product's low resistance made resistance checks...
Crime Fighters Find the Borescope a Powerful Ally
Borescopes usually have a light source and a series of rods that allow magnified, illuminated viewing inside very small holes and apertures. Some borescopes use spaced achromats and others use the...
Glass Aspheric Lenses Offer a Practical Solution for Bar-Code Scanners
Bar-code scanning devices rely heavily on laser diode lighting systems to record data, and product designers are looking closely at ways to increase efficiency and reduce costs.Circularizing the...
Machine Vision System Takes a Front Seat
Lear Corp., a Canadian manufacturer of auto seat frames, needed a way to improve product quality and eliminate the problems in its production process. Misassembled auto seat frames are not only...
European Photonics Experts Focus on Munich
More than 14,000 photonics scientists, engineers and technicians worldwide will converge on the Munich Trade Fair Site for the 13th LASER conference and exposition June 16 to 20. This year's event,...
Network Chooses Terrestrial Fiber for TV Broadcasting
News-12 New Jersey, a regional 24-hour all-news cable television channel owned by Rainbow Program Holding Inc. of Floral Park, N.Y., was looking for a high-quality yet economical means of...
Photodetector Module Helps Monitor Magnetic Fusion
For years, research scientists had had trouble navigating the cramped electronics hall at San Diego's DIII-D magnetic fusion facility. Packed with electronic and data-acquisition equipment, the hall...
Presstime Bulletin
Hubble Captures Star Life Cycles
A star is born in one of the first photographs released from the upgraded Hubble Space Telescope.The telescope's Near-Infrared Camera and Multi-Object Spectrometer NICMOS updated astronomers' IR view of the Orion Nebula, the nearest "nursery" for stars. At left is the old visible-light view of the region. In the NICMOS view, yellow-orange denotes dust and stars; excited hydrogen molecules are...
Japanese Firms' Fiber Output Grows
Japan's top three optical fiber cable makers, Sumitomo Electric Industries Ltd., Furukawa Electric Co. and Fujikura Ltd., are expanding output, according to the Asia Pulse news service. The service...
Keystone Set for Earth Mission
Hughes Aircraft Co. has delivered the Moderate Resolution Imaging Spectroradiometer to NASA for its Mission to Planet Earth program.The instrument will provide a wide field of view of the Earth in 36...
NIF Contract Funds Zygo Expansion
The Lawrence Livermore National Laboratory has contracted with Zygo Corp. of Middlefield, Conn., as a primary supplier of large plano optical components for the National Ignition Facility...
UK Firms Promote Capabilities
British technology companies visited the US last month to promote their products and technical capabilities at the UK/US Partners in Technology exhibition at the Santa Clara Convention Center in...
Products
PIN PHOTODIODE
Designed for use in line-of-sight data links, bar-code readers, laser radar and optical switching applications, the S6851 silicon PIN photodiode from Hamamatsu Corp. has a cutoff frequency of 70 MHz....
Hamamatsu Corporation
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PHOTOELECTRIC SENSORS
The FVDK 13 Series fiber optic photoelectric sensors from Baumer Electric Ltd. are suitable for applications where sensing objects as small as 0.1 mm is required. The miniaturized sensing head can be...
Baumer Ltd.
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DOUBLE-VIEW FIBER OPTIC FUSION SPLICER
Aurora Instruments Inc. is offering the Fusion 2500, a fiber optic fusion splicer that provides two simultaneous 653 views of a fiber. It features a wide-angle viewing video monitor on an...
Aurora Biomed Inc.
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F/O DATABASE
Molex Inc. has introduced a fiber optic database platform that allows users to track fiber routings by setting up network locations and identifying splicing or termination points. PathSeeker...
Molex, Fiber Optics
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SINGLE-MODE FIBERS
Specialty Single Mode Fibers (SSMF) are being offered by Fiberguide Industries with wavelengths from 1310 to 1550 nm. They can be coated with acrylate, silicone/nylon, polyimide, aluminum or gold....
Molex, Fiberguide
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SLOW-SCAN CAMERA
Renishaw plc's RenCam is a compact, slow-scan CCD camera designed specifically to meet the demands of scientific applications requiring minimum noise levels. The self-contained unit includes a CCD...
Renishaw PLC, Spectroscopy Products Div.
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MICROSCOPE ADAPTER
The newly developed 8 scope adapter from Fiber Instrument Sales Inc. can be used on the AMP fiber optic microscope for inspecting angled connectors. It enables users to view focused 8...
Fiber Instrument Sales Inc.
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BORESCOPE ACCESSORY
An adjustable focusing eyepiece is available for Gradient Lens Corp.'s line of Hawkeye precision borescopes. The new device will allow users to focus sharply on a subject and adjust for differences...
Gradient Lens Corp.
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DESIGN, ANALYSIS TOOLKIT
The LabVIEW Wavelet and Filter Bank Design Toolkit from National Instruments is a multipurpose add-on package for applications such as edge detection, restoration and noise reduction, texture...
National Instruments Corp.
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MONOCHROMATOR
The Polychrome II from Applied Scientific Instrumentation Inc. comprises a xenon light source, galvanometric scanner, blazed grating and mirror optics. The monochromatic light is coupled to specially...
Applied Scientific Instrumentation Inc.
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OPTICAL MOUNTS
Newport Corp. has introduced a line of precision miniature optical mounts based on its ULTIMA series. The ULTIMA-Mini contains such ULTIMA features as the Clear Quadrant Design. Specifically designed...
MKS/Newport
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REFLECTANCE ACCESSORY
Labsphere Inc. is offering the DRA-CA 30I Diffuse Reflectance Accessory, designed exclusively for use with the Varian CARY 1/3 UV-VIS spectrophotometers. The instrument measures total reflectance of...
Labsphere Inc.
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SUBSTRATE MACHINING
Valley Design Corp. offers machining techniques such as V-grooves, chamfering, edge rounding, laser slag removal, pyramids and slots, and steps on hard materials, including silicon carbide, ceramics,...
Valley Design Corp., Headquarters
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LASER ACCESSORY
Electro-Optical Products Corp. has developed the Variable Low Frequency Modulator/Beam Deflector/Shutter (CH-40) for chopping, deflecting and positioning large, clear aperture laser beams. The...
Electro-Optical Products Corp.
DIODE LASER MODULES
Diode Laser Concepts Inc. produces industrial diode laser modules in variable wavelengths, output powers and fan angles for line-generation applications. The devices come in a hard-coat anodized...
Diode Laser Concepts Inc.
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ARC, PULSE LAMPS
Cascade Laser Corp. has introduced a line of arc and pulse lamps designed as replacement parts for lasers. The Cascade Laser Lamp brand carries a written warranty up to 500 h on arc lamps and is...
Cascade Laser Corp.
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FLUORESCENT LIGHTING
The Model 13 Plus Steady Light from Stocker & Yale Inc. is a laboratory-grade fluorescent lighting system that provides variable-intensity control using a high-frequency driver. Available with a...
ProPhotonix Ltd.
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CUSTOM MICRO-OPTICS
A line of micro-optics is now available from Bern Optics Inc. The lenses can be made from a variety of glass types, and the radius, center thickness and diameter can be held to 10-µm tolerances....
Bern Optics Inc.
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FUSED SILICA WINDOWS
The new line of standard optical window substrates from Tower Optical Corp. can be used with most lasers in the UV, VIS and NIR. They are available in standard diameters of 10, 12.7, 15, 19.1 and...
Tower Optical Corp.
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GRATINGS
Hellma Cells is offering holographically and mechanically ruled gratings from Carl Zeiss. Holographic styles include sinusoidal, echelette and laminar types with wavelengths ranging from 4 nm to 1...
Hellma USA Inc.
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PC CARD
Performance Motion Devices Inc. has unveiled a motion chip set evaluation board that shortens the time required to build systems using off-the-shelf motion control chips. Supporting servo, brushless...
Performance Motion Devices Inc.
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AUTOSAMPLERS
Pike Technologies Inc.'s transmission/specular reflectance autosamplers are used with commercial FTIR spectrometers. They are available on an 8-in. circular sampling plate design that can accommodate...
PIKE Technologies Inc.
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DEPTH MEASUREMENT
Featuring video enhancement, the Z-Axis Depth Measuring Microscope from Titan Tool Supply Co. Inc. captures images on video monitors and relays the images to computers for easier viewing and greater...
Titan Tool Supply Inc.
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SPECTROPHOTOMETERS
Spectrophotometric instruments that include a halogen visible light source and a UV-1 deuterium light source are available from Analytical Instrument Systems Inc. Models DLK-1000 VIS and DLK-1000 UV...
Analytical Instrument Systems Inc.
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SPECTRAL SENSOR
The new low-cost MMS NIR sensor from Carl Zeiss Jena GmbH features a sturdy, compact design and is highly flexible in applications such as petrochemistry and food analysis. This spectral sensor...
Carl Zeiss Microscopy LLC
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LASER VIBROMETERS
Featuring video enhancement, the Z-Axis Depth Measuring Microscope from Titan Tool Supply Co. Inc. captures images on video monitors and relays the images to computers for easier viewing and greater...
Titan Tool Supply Inc.
Request info >
VIDEO INSPECTION
The Techni-Spec family of video inspection systems from TechniQuip Corp. consists of five turnkey systems in color and black-and-white versions. The microscope-based TSV-100 and -200, the stand-alone...
Techni-Quip Corp.
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WHITE-LIGHT INTERFEROMETRIC SENSOR
Fiso Technologies Inc. has introduced the FTI-10 battery-powered interferometric sensor. The 1/8 DIN white-light device is fully compatible with the company's Fabry-Perot-based fiber optic gauges...
FISO Technologies Inc.
Request info >
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