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Photonics Spectra - June 1998
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Issue Library
Features
Holographic Storage: A Viable Alternative for Space?
As space missions venture further into the depths of the universe n and further away from Earth n engineers are pressed to come up with data storage systems that will prove more capable and more...
Terrestrial IR Imaging Benefits from Aerospace Programs
Infrared imaging systems are exploding into virtually every corner of the industrial workplace. Improved resolution, thermal sensitivity, ruggedness and portability of imager components have expanded...
Photonics Helps Space Designers Battle Costs
Space agencies around the world are looking for ways to do more with less. In the US, NASA has spent the past few years emphasizing smaller, faster, cheaper missions. Since taking over as the...
Solid-State Lasers Join the Space Race
In the 60s and 70s, scientists had carte blanche to develop space instruments. However, in todayis cost-conscious space programs, laser designers look towards Earth and improving commercial...
Optical Morphology:
For many people, optics are but one of the many components that make up a system. They understand the specifications the optics must meet but, many times, they do not know nor are they concerned...
Lessons from Space:
The development of space-based ultraviolet astronomy began with the missions of deep-space sonders like Voyager, which allowed preliminary determination of UV spectra of remote stars. However, these...
Absorption Spectroscopy Technique Provides Extremely High Sensitivity
Several important areas of modern technology require fast, accurate and convenient measurement of trace species concentrations in gaseous environments. Examples include reactive plasma processing,...
Telescope Analysis Yields Down-to-Earth Benefits
Astronomers and astrophysicists studying the nature of celestial objects require clear, sharp images collected by astronomical telescopes. To accomplish this, the engineers who design and build these...
Tech Pulse
Scientists Find Nine-Atom Silicon Cluster
Researchers have discovered a silicon cluster larger than four atoms. The team, comprising scientists from the University of Notre Dame in Indiana, may lead to a silicon nanoparticle solution that...
Coating Method Makes Molecule-Thick Layers
A method for dip coating a substrate with organic polymers may increase the efficiency of light-emitting diodes (LEDs) and computer displays while reducing costs and environmental hazards. The...
Interferometer Detects Microscopic Flaws on Optical Surfaces
A team of scientists at Lawrence Livermore National Laboratory in Livermore, Calif., has developed an absolute interferometer that can detect imperfections less than 1-nm deep in highly polished...
Diode Pumps New Self-Frequency-Doubled Laser
In an intensive three-week push, researchers from the Center for Research and Education in Optics and Lasers at the University of Central Florida in Orlando cranked up the power of their...
Multispectral Imager Enhances Remote Sensing
Scientists at NASA's John C. Stennis Space Center in Mississippi have developed a portable multispectral imaging device operating in a range of user-selectable bands. The imager produces multiple...
Scientists Evaluate Statues, Cathedrals with Laser Radar
A research group here has collaborated with an Italian team to evaluate the integrity of ancient monuments and historical structures using laser radar that was originally designed for atmospheric...
Facial Recognition System Verifies Driver's Identity
A computerized facial recognition system, employing advanced algorithms coupled with off-the-shelf imaging equipment, has given this state's motor vehicles division an advantage in determining a...
Phoenix Finds the Flames
A team of engineering students from Trinity College in Hartford, Conn., took the No. 1 prize in an international contest to build a computerized robotic device that detects fire. The robot, dubbed...
Researchers Unveil Metal-Free Cathodes for LEDs, Photodetectors
Scientists at Princeton University in New Jersey have developed a class of metal-free cathodes for use in organic light-emitting diodes (LEDs) along with phototransistors, photodetectors, solar cells...
Astronauts Go for a Spin
Astronauts aboard the space shuttle Columbia had their heads spinning, literally. As part of a series of space-based neurological experiments, they took turns in a spinning chair while IR video...
Scientists Report High Efficiency in Semiconductor Diode Laser
Researchers at Semiconductor Laser International Corp. in Binghamton, N.Y., recently demonstrated an 808-nm, high-power semiconductor diode laser with an efficiency of 56 percent operating at 25...
Holography Comes to the Masses
Since its introduction, holography has been stifled by its lengthy and complicated production process and limitations in image quality -- putting it beyond the reach of commercial success. Two...
Photonics Weeds out the Impostor Jewels
How many times have you opened the mailbox to read, "Congratulations! If you have the winning number, you will receive a valuable diamond pendant"? Your excitement builds when you see that your...
Inexpensive Infrared Sensors Rely on Microcantilever
In a bid to provide an alternative to high-priced, cooled IR detectors, Sarcon Microsystems Inc. of Knoxille, Tenn., has developed a microcantilever-based sensor priced at about $4000 for a 240 3 320...
Ion Plasmas Simplify Atomic Clocks
Precision timekeeping and the understanding of white dwarf and neutron stars have been made easier through observations of a laser-cooled ion plasma created by researchers at the National Institute...
Tiny Bubble Is Key to Optical Measurement
Engineers at water treatment plants and other facilities that monitor biological and chemical pollutants in water are turning to optical techniques such as spectroscopy. These techniques are not...
Transistors Work at Low Temp
Engineers at Germanium Power Devices are refining a transistor that works at liquid helium temperature. The germanium field-effect transistor was pioneered by Texas Instruments but never put into...
Fluorescence Spectroscopy Measures Pollution in Boston Harbor
Scientists have a new tool to measure the pollution in Boston Harbor. Researchers at the Massachusetts Institute of Technology in Cambridge, Mass., have developed a portable, fiber optic...
Photonics Projects Are Among Award Semifinalists
Teams from Japan, Belgium and Brazil made it to the semifinal round of the Texas Instruments Inc. DSP Solutions Challenge with projects that highlight the important relationship between photonics and...
Tunable UV Free-Electron Laser Achieves Short Wavelength
In trials at Duke University in Durham, N.C., a Russian-built tunable ultraviolet free-electron laser achieved 226 nm, a milestone that could portend uses in a variety of medical and physical science...
Laser Texturing Slashes Cylinder Wear
Laser texturing of engine cylinder walls may reduce oil consumption by 40 percent compared with traditional cylinder machining techniques, according to a manufacturer of engine honing equipment....
Fibers in Spark Plug Monitor Ignition
University of Texas researchers and the Ford Motor Co. are collaborating on a spark plug that employs fiber to monitor pre-ignition fuel concentration. The goal, said developer Mathew Hall, is...
Open Solar Telescope Overcomes Hot-Air Turbulence
A new telescope perched 15 m above a mountaintop promises to solve many of the problems that plague telescopes designed to peer at the sun. Using a scheme that leaves the main mirror of the telescope...
Machine Vision Spots Spoiled Wheat
In the past two years, wheat farmers in the US have faced a serious problem: Fungal spores, known as karnal bunt, have been infecting their crops. To prevent the spread of this blight, farmers and...
light speed
Uniphase Adds Philips Optoelectronics
Hardly a month after opening a $20 million semiconductor laser fabrication plant in Zurich, Switzerland, Uniphase Corp. has struck again. This time, the laser manufacturer-turned-telecom company has...
Industrial Laser Shipments Climbed in '97
Cutting applications spurred an increase in shipments of industrial laser systems and equipment for North America and the US. Overall, shipments increased 16 percent in 1997 over 1996, according to a...
Germany Funds High-Power Diode Laser Project
The Federal Ministry of Education, Science, Research and Technology has announced that it will fund a DM 70 million (about $40 million) collaborative R&D project to develop high-power diode...
Coherent Joins Precision Laser Consortium
Coherent Inc.'s Semiconductor Group in Santa Clara, Calif., has joined the Precision Laser Machining Consortium, a group of 24 companies administered and partially funded by the Defense Advanced...
Task Force Explores OSA/SPIE Merger
Two of the leading optics societies, SPIE and the Optical Society of America (OSA) are considering a closer collaboration or merger. Representatives from each society met in Washington to discuss...
Names In The News
The US Defense Department presented its highest civilian award, the Distinguished Civilian Service Medal, to Robert Q. Fugate, senior scientist for atmospheric compensation at the Air Force Research...
Whisperers Shout on Wall Street
Investors interested in the photonics industry would do well to listen to the "whispers" on Wall Street, according to a recent research study. The study by Mark Bagnoli of the University of Michigan,...
Science and Engineering Graduate Enrollments Continue Slide
Following more than a decade of consistent gains, graduate enrollments in science and engneering de- clined for a third straight year in 1996. That finding comes from a National Science Foundation...
Russia Spins off Labs into Private Companies
As economic straits force the Russian government to shed some of its Soviet-era overhead, research groups within many of the state-controlled institutions are becoming private companies. Officials...
Pentagon Urges Cooperation on Weapons Planning with Allies in Europe, Japan
In an effort to coordinate a better defense among allied nations, the Pentagon has called for increased cooperation with Japan and Europe in the production of new weapons, including remote sensors....
Accent on Applications
3-D Imager Has a Hand in Making Golf Gloves Fit
Golfers may soon be able to send their hand measurements electronically to a glove manufacturing facility and receive custom-made gloves in just a few weeks. Photonics once again is the backbone of...
Compact, Unattended Lidar System Relies on an Nd:YAG Laser
Over the past 30 years, lidar systems have become increasingly useful for the study of air quality and dynamics. Lidar can measure vertical profiles of airborne particulates, wind speed and...
Line-Scan Camera 'Peels' Spark Plugs
In mass production, keeping defective products to a minimum and cutting waste are primary concerns. A major manufacturer of auto parts and electronics set a goal to ship products with zero defects...
Infrared Thermography Unearths Hidden Graves
Rarely is a suspect tried for murder in a case where no corpse has been found -- a frustrating predicament when law officials believe they know the crime has been committed and who the murderer is....
Presstime Bulletin
Engineers Test-Fire Airborne Laser
The Airborne Laser Program has reached another milestone. In April, the US Air Force successfully tested the system, which points and focuses a laser at a hostile missile. Engineers conducted the...
News Flash Photonics Assesses El Niño's Devastating Path
Anyone who turned on CNN this winter remembers the images: expensive homes teetering on the edge of rocky cliffs, vulnerable to the Pacific's waves. Those familiar images were the result of El Niño...
Laser Aids In Vitro Fertilization
US scientists have successfully used a laser beam in clinical trials to promote pregnancies in women. The In Vitro Fertilization Workstation used in the procedure is manufactured by Cell Robotics...
New Machine Speeds Manufacture of Aspheres
Engineers from the University of Rochester in New York, along with scientists at the US Department of Defense and seven corporate partners, have designed a system that automates the manufacture of...
SDL and Quinta to Develop Optical Storage
The US Department of Commerce has awarded SDL Inc. and Quinta Corp., both of San Jose, Calif., a three-year, $3 million contract to develop advanced optical storage technology. The contract is part...
Spectra-Physics Wins $2.4 Million Contract for Optical Coatings
Spectra-Physics has received a $2.4 million contract to develop optical coatings for the National Ignition Facility. The facility's laser system will require 8000 large optical components and 30,000...
Products
PIN PHOTODIODES
Hamamatsu Corp. has developed the G6742 series of InGaAs PIN photodiodes for laser diode monitoring. Mounted in a small ceramic chip-carrier package, they have a spectral response range of 0.9 to 1.7 µm with peak sensitivity at 1.55 µm. Photosensitivity is 0.9 A/W at 1.3 µm and 0.95 at 1.55 µm. The G6742-003 has a 0.3-mm-diameter active area and a 300-MHz cutoff frequency, while the G6742-01 has...
Hamamatsu Corporation
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ULTRAFAST PHOTODIODES WITH HIGH RESPONSIVITY
The 102X Series of time-domain-optimized photodetectors from New Focus Inc. offers 12-ps FWHM impulse responses and is suited for high-speed digital fiber optic systems, pulsed laser measurements and...
Newport - New Focus
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CABLE STRIPPING
The FO 7045 fiber optic cable stripping machine from Schleuniger Inc. can be programmed for a variety of stripping combinations. The system processes many cable types and thicknesses up to a length...
Schleuniger Inc.
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FIBER OPTIC SOURCE
ILX Lightwave Corp.'s 8012 and 8024 fiber optic sources are available with single or dual output and are suited for research and production test applications. They offer LED and laser source options...
Newport - ILX Lightwave, Photonics
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LC CONNECTORS
Molex Fiber Optics Inc. offers small-form factor fiber optic connectors that feature a standard RJ-45 telephone plug and an audible click to ensure connectivity. Applications include telecom...
Molex, Fiber Optics
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HEAD-MOUNTED DISPLAY
The E-ZView head-mounted display from Optics 1 Inc. is suitable as a replacement for conventional CRT equipment and small, handheld monitors. The unit weighs ~11 oz, and its monocular design and...
Safran Optics 1 Inc.
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INDUSTRIAL MINI CAMERA
The IK-M414MA microminiature camera from Toshiba America Information Systems Inc. is suited for high-speed assembly line applications. Its minimum illumination of 1.8 lux at f/1.6 allows it to be...
CANON MEDICAL COMPONENTS U.S.A., Video Sensing Devices
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IR IMAGING ACCESSORY
Bio-Rad Laboratories has developed a research product for infrared imaging, the Stingray LS. Based on the FTS 6000 Stingray microimaging system, it is an accessory for chemical imaging of sample...
Bio-Rad Laboratories Inc., Informatics Div.
IMAGING SOFTWARE
National Instruments has announced version 4.0 of its HiQ analysis and data visualization software. Available free to Matlab users, the package features Matlab connectivity and M-script...
National Instruments Corp.
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TEMPERATURE CONTROL
The HTC-3000 bipolar temperature controller from Wavelength Electronics Inc. can be used with thermoelectric modules or resistive heaters. This miniature instrument runs at 24 W at 3000 mA and is...
Wavelength Electronics Inc.
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DATA ACQUISITION
Pulse Instruments' PI-4005 is designed specifically for the acquisition of data from CCDs, IR detectors and focal plane arrays. It consists of a set of low-noise mainframes, the host computer, and...
Pulse Instruments Co.
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ENERGY METER
The F100A-HE power/energy meter from Ophir Optronics Inc. features an aperture of f25 mm and withstands up to 20 times the power and energy density of traditional volume absorbers. The instrument is...
MKS Ophir, Light & Measurement
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GRAY-SCALE MONITORS
Image Systems Corp. has developed two gray-scale monitors that generate 110 fL nominal through a 90% contrast filter that is antireflective and antistatic. The M21L2KHBMAX Turbo provides a 21-in....
Image Systems, Canvys
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LAPPING MACHINE
Lapmaster International is offering the LSP line of dual-face lapping machines. The LSP-20 is driven by four variable-speed motors for process control flexibility. Its programmable controller can...
Lapmaster Wolters Ltd.
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METROLOGY TOOL
The FilmTek 2000 is based on Scientific Computing International's new thin-film metrology technology. It combines the ease of use of a fiber optic-based spectrophotometer with material modeling...
Scientific Computing International
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OPTICAL ENGINEERING AND ANALYSIS SOFTWARE
Breault Research Organization Inc. has released Version 6.0 of its ASAP optical engineering and analysis software. This program allows the user to design, analyze and prototype optical systems within...
Breault Research Organization Inc.
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PROTOTYPING SOFTWARE
Lambda Research Corp. has released version 1.3 of its TracePro virtual pro- totyping software. Applications include analyzing and designing optical, illumination, display, medical, automotive and...
Lambda Research Corp.
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TEMPERATURE CONTROLLER
Newport Corp. is introducing a 350-W temperature controller for use with thermoelectric coolers. The Model 3150 Advanced High-Power Temperature Controller provides 350-W bipolar output and active...
MKS/Newport
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635- TO 780-nm DIODES
PicoQuant GmbH is offering the FSL 400 fast-switched diode laser, which produces rectangular light pulses at repetition rates from single shot to 20 MHz. Applications include high-speed imaging and...
PicoQuant GmbH
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Nd:YAG LASER
Trumpf Inc.'s Laser Div. has introduced the HL 4006 D high-power Nd:YAG laser, a modular, continuous-wave instrument that delivers up to 4000 W at the workpiece. Beam quality is 25-mm mrad for the...
TRUMPF Inc., Laser Technology Center
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LASER DIODES
Roithner Lasertechnik offers high- power and affordable laser diodes from Polaroid with wavelengths from 650 to 980 nm. The optical single- stripe power starts at 50 mW single-mode and goes up to 4 W...
Roithner Lasertechnik GmbH
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Nd:YAG LASER SYSTEM
Big Sky Laser Technologies Inc. is offering the Model CFR 800 Nd:YAG laser system for applications such as laser marking and cutting, machining, spectroscopy, lidar and ablation. It produces 800 mJ...
Keopsys by Lumibird
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DIODE LASERS
Micro Laser Systems has introduced a line of diode lasers for free space communications. Featuring single-mode powers from 810 to 850 nm and at 1550 nm, these lasers deliver small collimated beams...
Micro Laser Systems Inc.
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LASER RANGEFINDERS
The LD90-3 series of noncontact pulsed laser rangefinders from Riegl USA are suited for industrial positioning, profiling, distance and quality measurement applications. Based on the principle of...
Riegl USA Inc.
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FLASHLAMP DRIVERS
Analog Modules Inc. is offering the Model 880 series of pulsed flashlamp drivers for solid-state laser systems. They are custom tailored to meet specific application requirements and include a...
Analog Modules Inc.
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GaAIAs INFRARED LEDS
The OD-780W from Opto Diode Corp. is a purely spectral output double heterostructure LED in a TO-46 package with a flat window. The diodes emit at 780-nm peak with a typical 25-nm spectral bandwidth....
Opto Diode Corporation
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LOW-KERF WAFERING
Valley Design Corp. is offering wafering services for crystals and glass such as quartz, fused silica, silicon and IR materials. The firm's sawing technology produces high yields and tight...
Valley Design Corp., Headquarters
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ROTARY MOTION
MagiDrive from Kurt J. Lesker Co. is a rotary motion device in which the shaft is enclosed entirely by a stainless steel vacuum casing without O-rings, bellows or fluids. It can be scaled to any size...
Kurt J. Lesker Co.
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THIN-FILM MAPPING
The F50 thin-film thickness mapping system from Filmetrics Inc. is designed for semiconductor wafer characterization and optical coating. It automatically measures the thickness of oxides, nitrides,...
Filmetrics, KLA Instruments
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MEASUREMENT STATION
Bentham Instruments Ltd. has introduced a large-sample measurement station that employs long-focal- length optics. The company says the device's measurement compartment is as large as some complete...
Bentham Instruments Ltd.
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SPECTROPHOTOMETERS
The Shimadzu FTIR-8300 and FTIR-8700 spectrophotometers feature a patented computer-controlled optical alignment system with intrascan correction from 5 to 10,000 Hz. The low-maintenance,...
Shimadzu Scientific Instruments Inc.
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METROLOGY STAGE
A rotary metrology stage available from Nikon allows users in a wide variety of industries to measure parts on microscopes, profile projectors and video measuring systems, and to download the...
Nikon Instruments Inc.
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SPECTRORADIOMETER
Analytical Spectral Devices Inc. has upgraded its FieldSpec FR with an IR-enhanced photodiode array. The portable three-detector spectroradiometer now yields 23 signal-to-noise and sensitivity...
ASD Inc.
LOW-COST RAMAN SPECTROSCOPY SYSTEM
Ocean Optics Inc. has collaborated with Boston Advanced Technologies Inc. to offer the Raman Systems R-2000 for applications such as reaction monitoring, product identification and remote sensing....
Ocean Optics - Part of Ocean Insight
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FTIR SPECTROMETER
Spectrolab has developed a portable FTIR spectrometer that can fit into a stardard-dimension case. The footprint of the device is exactly A3 format and the height is 120 mm. Spectral resolution is 2...
Spectrolab Inc.
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