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Photonics Spectra - April 2001
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Issue Library
Features
Transparent Airplanes?
Many advanced optical and infrared materials inspection techniques that have been employed to examine aircraft structures have a long history of laboratory development before adaptation for field use. Demonstrations on model laboratory materials systems over the past two decades have led to field demonstrations on aircraft structures over the past five to 10 years. For the most part, these...
Optical Fiber Soliton Communication
Under certain circumstances, a single pulse of self-maintaining shape, called a solitary wave, can exist in a dispersive, nonlinear medium. This well-established fact is mostly remarkable for the...
Hands on the Wheel, Cameras on the Road
When General Motors introduced the night-vision option in its 2000 DeVille, it selected the "Cadillac" of infrared technology, a ferroelectric focal plane array. Not far removed from the thermal...
Staff Report: Jobs in Photonics
Layoffs and Wall Street notwithstanding, photonics is booming -- and so is the job market. It’s hard to ignore what appears to be contrary evidence. From October to March, our Photonics Market...
Optics that Fit
The optical dome conventionally used on the front end of a missile is a section of a sphere, because spherical optical design and fabrication are well-understood. Such blunt forms, however, produce...
Technology Close-Up: Optical Fiber Soliton Communication
Under certain circumstances, a single pulse of self-maintaining shape, called a solitary wave, can exist in a dispersive, nonlinear medium. This well-established fact is mostly remarkable for the...
Staff Report: Whence the Technicians?
Last June, the Coalition for Photonics and Optics sent a sobering shot across the bow of the US optics industry. Representatives from academe, photonics companies and optics-related associations told...
Tech Pulse
Optical Technique Enhances Aerosol Studies
WASHINGTON -- Understanding the nature of aerosols is vital to designing better nebulizers for chemical analysis and drug delivery, and to investigating fuel mixing in automotive and aerospace applications. Researchers now have a technique at their disposal that uses laser light to capture images of an aerosol field. In the past, mechanical techniques such as cascade impaction and mechanical...
Bow Ties May Make Good Sensors
TUCSON, Ariz. -- In the future, bow ties may be more than a fashion accessory for political pundits and used-car salesmen. Researchers at the University of Arizona’s Optical Sciences Center...
LEDs May Yield Chemical Sensors
MADISON, Wis. -- A class of devices based on LEDs promises to enable the development of cost-effective smart sensors. Researchers at the University of Wisconsin have demonstrated that the chemical...
Corals Wear Fluorescent Sunscreen
SYDNEY, Australia -- It may not be Coppertone, but it works. Scientists from the University of Sydney and the University of Copenhagen in Denmark have discovered that the fluorescent pigments in some...
Photonic Crystal Displays Trirefringence
Scientists have been familiar with the phenomenon of birefringence ever since Christian Huygens characterized the anisotropy of calcite in the late 1600s. Now a group from University of Southampton...
Squares May Resolve Exosolar Planets
CAMBRIDGE, Mass. -- With one exception, astronomers have observed all of the known exosolar planets indirectly by monitoring the changes they elicit in the radial velocities of their parent stars....
Infrared Camera Exposes Reef Building
MONACO -- Marine scientist John R.M. Chisholm was scratching his head over this one. The coral in his aquarium, it seemed, suffered from somnambulism. On 21 nights over the course of a month, the...
Fuzzy Logic Boosts Laser Performance
A team of researchers at Nanyang Technological University in Singapore has demonstrated that lasers controlled with fuzzy logic systems offer more stable output than optimized open-loop devices or...
Spectroscopy Offers Hope in Land-Mine Detection
NORWOOD, Mass. -- From Bosnia to Angola to North Korea, the threat to civilians of injury or death by unexploded land mines is very real. Yet for all of the sophistication of 21st-century warfare,...
Fast Ignition Proposed for Inertial Confinement Fusion
Two groups have independently reported fast-ignition techniques for inertial confinement fusion, which drives the implosion of capsules of deuterium and tritium with laser or ion beams, either...
Lighter Lidar Takes to the Sky
WALLOPS ISLAND, Va. -- Satellite pictures of the ocean surface offer insight into the levels of organics that indicate ocean health, but the volume of color imagery exceeds our ability to interpret...
Researchers Probe ’Light Bullets’
A team at the University of Technology Chemnitz in Chemnitz, Germany, has presented the results of its observations of light bullets, blocks of plasma generated by the interaction of laser pulses and...
Oil Damages Los Alamos Laser Lab
Officials at Los Alamos National Laboratory in Los Alamos, N.M., estimated that an oil spill at the Atlas pulse power facility in January caused $1.7 million in damage to a laser research facility in...
Shadow Moire Hits the Streets
Sidney Guralnick, a professor of civil engineering at Illinois Institute of Technology in Chicago, has developed a moire topography system to eliminate potholes. Called the Automated Road Inspection...
Slow-Motion Movies Aid Engineers
MURRAY HILL, N.J. -- Understanding how high-frequency vibrations behave is important to the engineering of electronic devices such as television sets and cell phones and, most recently, to the...
Silver Nanoclusters Store Data
ATLANTA -- Every data cloud may someday have a silver lining. Researchers have demonstrated that fluorescing nanoclusters of two to eight silver atoms can store information, a phenomenon that may...
NASA Tests Quantum Cascade Sensor
The results of NASA flight tests have verified the suitability of mid-infrared quantum cascade lasers for atmospheric gas measurements. Reporting in the Jan. 20 issue of Applied Optics, project...
Evanescent Waves Probe Gas-Solid Interface
A spectroscopic technique developed by a group from Odense Universitet in Denmark, Max Planck Institut für Strömungsforschung in Göttingen, Germany, and the Russian Academy of Sciences...
Fiber Probes Engine Oil
MADISON, Wis. -- A new sensor that combines the signals from two probes may enable mechanical engineers to better characterize the distribution of motor oil in a running engine. Understanding the...
Lasers Tackle Radioactive Concrete
ARGONNE, Ill. -- What do you do when you have terminated nuclear power, research and weapons development but still have radioactive buildings hanging around? That’s the problem facing the US...
Lasers Keep Runways Safe
A laser illumination system developed by Greatland Laser LLC of Anchorage, Alaska, promises to reduce the accident rate of taxiing aircraft. Currently in testing at the US Federal Aviation...
Lasers Could Simplify Drilling for Oil
DES PLAINES, Ill. -- On the heels of a successful two-year study of the potential of military lasers to drill for natural gas, researchers at the Gas Technology Institute have teamed with the US...
Is Space a Dispersive Medium?
According to string theory, perhaps the top contender in the struggle to create a quantum theory of gravity, the vacuum of space is frothing. According to Dimitri V. Nanopoulos, a professor at Texas...
Third-Harmonic Excitation Improves Resolution
BERKELEY, Calif. -- When researchers at the University of California teamed a near-infrared laser with a near-field scanning optical microscope, they created a high-resolution imaging technique with...
Vertical-Cavity Structure Offers Amplification
SANTA BARBARA, Calif. -- Vertical-cavity semiconductor optical amplifiers have promised enhanced coupling efficiencies and no polarization dependency for long-distance optical communications, but...
light speed
Lucent Dangles Its Fiber Business
Lucent Technologies Inc.’s optical fiber business is under the microscope as the company considers selling, forming a joint venture or other alternatives. Bill O’Shea, executive vice president for corporate strategy and business development, said the re-examination of the fiber business is part of Lucent’s effort to sharpen its corporate focus on communications systems, software...
ESC Acquires Coherent’s Medical Group
YOKNEAM, Israel -- ESC Medical Systems Ltd. has agreed to buy the Coherent Inc. Medical Group for cash, stock and notes valued around $203 million plus payments of up to $25 million based on growth...
State Funds Photonics Projects
The Washington Technology Center has presented $396,000 in photonics project awards to seven researchers at two of the state’s universities: Washington State University chemistry researcher...
Most High-Tech Firms Join Alliances
NEW YORK -- Just over two-thirds of high-tech businesses have participated in strategic alliances in the last three years, and photonics continues to have a share of that activity. The latest...
Imager Complaint Prompts Trade Investigation
The US International Trade Commission has agreed to investigate a complaint by Photobit Corp. of Pasadena, Calif., that three companies are violating US import laws. Photobit complained in January...
Stable Laser Prompts Lawsuit
WILMINGTON, Del. -- Japanese photonics manufacturer Sumitomo Electric Industries has sued Furukawa Electric Co. Ltd., alleging that its semiconductor laser pump diode modules infringe a Sumitomo...
Lehigh Establishes Optics Center
A new Center for Optical Technologies at Lehigh University in Bethlehem, Pa., will collaborate with other academic institutions and with companies to develop research, technology transfer, and degree...
When $1 Million ≠ $1 Million
CHICAGO -- Investors know how hard it is to compare US companies’ financial statements, but America’s major accounting firms say it’s even harder to compare companies across...
Free-Space Optics ’Onslaught’ Coming
Nonfiber optical communication, known as free-space communication, could be a $1 billion market by 2003 and a more than $4 billion market by 2005, according to a study conducted by Allied Business...
Accent on Applications
Building a Better Souse Trap
Whether passing someone on the highway or cruising at 30,000 feet in a plane, several times a day we entrust our health -- and sometimes our lives -- to the judgment of others. Alcohol or drug abuse...
Automated Imager Stalks Cells
One challenge to studying organic molecules is that life is a process. Traditional methods of analyzing cell structures require that scientists isolate cells by freezing them in time, essentially...
Presstime Bulletin
3M Introduces C-Band Dispersion Modules
St. Paul, Minn.-based 3M announced the development of chromatic dispersion compensation modules for the full erbium C-band at OFC 2001 in Anaheim, Calif. The company says the modules complement --...
Earthquake Shakes up Gravity-Wave Detector
Seattle may have handled the Feb. 28 temblor in stride, but the magnitude 6.8 earthquake has delayed operations at the Laser Interferometer Gravitational Wave Observatory in Hanford, Wash. It will...
Phase One A/S to Use Kodak’s 16-Megapixel CCD in LightPhase H20 Digital Camera Back
Eastman Kodak Co. announced that Phase One A/S, a world leader in Direct Digital Imaging, has selected Kodak’s KAF-16801CE 16-megapixel CCD image sensor for use in its upcoming LightPhase H20...
Exfo Plans Acquisition of Efos
In a deal estimated at $122 million, Quebec-based Exfo Electro-Optical Engineering Inc. will acquire Efos Inc. of Toronto. The boards of directors of both companies have approved the transaction,...
EyeTicket Granted Injunction
The US District Court for the Eastern District of Virginia has ruled in favor of EyeTicket Corp. of McLean, Va., in its motion for a preliminary injunction against Unisys Corp. of Blue Bell, Pa....
Lambda Physik’s New Application Center to Provide State-of-the-Art Laser Material Processing Expertise
Lambda Physik has developed an application center called Application Center Inc. in order to provide material processing expertise for Lambda Physik and its customers. The services...
New Wave Research Unveils Deep UV Laser Ablation System
FREMONT, Calif. New Wave Research has unveiled the UP-213, a high-performance Nd:YAG deep UV (213 nm) laser ablation system. The UP-213 improves ablation of all materials for ICP-OES and...
New Wave Research Establishes Sales and Service Office in Europe
FREMONT, Calif. New Wave Research announced that it has expanded its sales and service operations to Europe with the opening of an office in the United Kingdom. The United Kingdom office...
New Wave Research Introduces Smallest Nd:YAG Laser Available for PIV Applications
FREMONT, Calif. New Wave Research introduced the Solo PIV the smallest Nd:YAG laser available for particle image velocimetry (PIV) applications. The compact, Q-switched, laser system...
Digital Camera Offers Extended Spectral Coverage for Microscopists
Roper Scientific Inc. has announced the release of the Photometrics CoolSNAPHQ imaging system for digital microscopy. The CoolSNAPHQ system utilizes a 1392 x 1040-pixel CCD cooled to -30 °C as well...
New High-Performance CCD Detector for High-Resolution Spectroscopy
Roper Scientific Inc. has announced the release of the Princeton Instruments Spec-10:2K detection system for high-resolution spectroscopy. This recent addition to the Spec-10 family of CCD detectors...
Thermo Oriel Announces Multiport Fiber Illuminators
Thermo Oriel has unveiled its line of Multi-Port Fiber Illuminators designed specifically for WDM testing. They have multiple output ports for simultaneous testing of up to four spectral channels....
Thermo Oriel Unveils Solar Simulators
Thermo Oriel announced its 1600 W Solar Simulator that produces uniform, collimated output beams with a close match to sunlight. Six output configurations are offered: 2 x 2, 4 x 4, 6 x 6, 8 x 8, 10...
Condensates Reveal Unique Properties
Since researchers first produced Bose-Einstein condensates in the lab in 1995, the ultracold collections of atoms, produced with laser and magnetic cooling and trapping, have exposed quantum...
Products
PIN PHOTODIODES
Advanced Photonix Inc. has released three silicon PIN photodiodes for optical telecommunications. Their lowcapacitance design produces high-speed response up to 1.5 GHz. The detectors are available with active areas of 0.2, 0.5 and 1.0 mm and are supplied in a hermetically sealed TO-46 package that interfaces to standard fiber connectors. Each device is supplied with a flat, domed or microball...
Advanced Photonix
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FIBER IDENTIFIER
A handheld optical fiber identifier from Edmund Industrial Optics features 800- to 1700-nm spectral response. It determines signal power, the presence of modulated tones and the direction of traffic...
Edmund Optics Inc.
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FRAME GRABBERS
Alacron Inc. has developed integration support for Basler-MVC's L301bc line-scan camera. FastFrame and FastImage 1300 frame grabbers can capture up to 64 b of digital data with control and clock...
Alacron Inc.
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MICROCAMERAS
Elmo Manufacturing Corp. has designed a line of microcameras for machine vision applications that require increased productivity and improved quality control. The cameras can be operated remotely to...
ELMO USA Corp.
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UV ADHESIVE
Fiber Optic Center Inc. designed its low-viscosity UV cure adhesive for bonding glass, ceramic and silicon substrates in applications that require no shrinkage. AngstromBond AB9047 cures in <10 s...
Fiber Optic Center Inc.
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ATTENUATOR FOR DWDM
An optical variable attenuator for DWDM system applications has been developed by Santec Corp. The OVA-650 has a neutral density filter for performance over both the C- and L-bands. It has an...
Santec USA Corp.
CERAMIC ADHESIVE
A high-temperature adhesive for bonding and potting high-wattage quartz halogen lamps is available from Aremco Products Inc. Ceramabond 835M is an alumina-filled, water-based formulation that also...
Aremco Products Inc.
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UV CURING
Hanovia designed its UV curing systems for a variety of photocurable products. The company says the units require less floor space and provide better accessibility and easier maintenance. The systems...
Hanovia Specialty Lighting LLC
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DRYING/CURING
A hot-plate accessory from Specialty Coating Systems dries and cures photoresists, epoxies and other thermally cured or solvent-based materials applied to flat substrates, such as spin-coated wafers....
Specialty Coating Systems Inc.
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DUAL MONOCHROMATORS
McPherson Inc. has released double monochromators featuring dual 350-mm focal length with f/4.8, ±0.07-nm accuracy in the visible, ±0.005-nm reproducibility and continuous stray light rejection of...
McPHERSON
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EPOXY SYSTEM
Fiber Optic Center Inc. provides a two-part epoxy system that cures in 15 min at 100 °C or in 5 min at 150 °C. AngstromBond AB9119 has a working time of 2 h and changes from light yellow to dark red...
Fiber Optic Center Inc.
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LOW-NOISE AMPLIFIERS
Advanced Research Instruments Corp. has released two transimpedance/voltage amplifiers, both with 50 (omega) input/output impedance, for fast photodetector applications. The DC-100 model delivers a...
Advanced Research Instruments Corp.
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PULSE MODULATOR
PowerMod HVPM solid-state modulators from Diversified Technologies Inc. can be configured to deliver 3 to 30 mW of peak pulses at up to 30 kV and currents up to 1 kA. Features include <1-µs rise...
Diversified Technologies Inc.
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OPTOCOUPLER
Hero Electronics Ltd. has introduced a low-profile SMD optocoupler manufactured by Bedford Opto Technology. The OPI1000L is suitable for applications such as metering and instrumentation in hazardous...
APC Hero
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POLISHING ABRASIVES
A line of high-purity alumina polishing abrasives is available from Meller Optics Inc. The Microlux fine abrasives are ready to mix with deionized water and are available in seven particle sizes from...
Meller Optics Inc.
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PULSE STRETCHER
The 101 PAL-PSTR pulse stretcher from Light Age Inc. provides control over a 0.1- to 5-µs range. It allows laser peak power to be fixed as pulse energy varies or to vary at nearly constant pulse...
Light Age Inc.
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DATALOGGING SOFTWARE
National Instruments' LabView module offers built-in utilities for configuring, viewing and logging data. It enables users to implement distributed logging and to perform direct historical trending...
National Instruments Corp.
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SPECTRAL CONFOCAL MICROSCOPE
Leica Microsystems Inc. has developed a personal confocal microscope for applications requiring visible laser illumination and two fluorescence detector channels. The Leica TCS SL has an integrated...
Leica Microsystems Inc.
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TELEVISION MICROSCOPES
Opto Sonderbedarf GmbH is offering TV video zoom microscopes. These modular systems comprise a video macroscope/microscope, a stage with supporting arm for the camera, a CCD camera with a zoom...
Opto GmbH
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VACUUM CHAMBER
MV Products offers a compact vacuum degassing chamber for removing entrapped air and water vapor from urethanes and epoxies in smallbatch applications. Features include stainless steel construction...
Mass-Vac Inc., MV Products Div.
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MINIATURE WAVEGUIDE AMPLIFIER
A compact erbium-doped waveguide amplifier (EDWA) gain block has been launched by Teem Photonics. The Metro EDWA includes a pump laser with a thermoelectric cooler, a pump/signal multiplexer, a...
Teem Photonics
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BLUE DIODE LASERS
A picosecond-pulsed blue diode laser system is available from PicoQuant GmbH. It offers a center wavelength of 400 nm, ultrashort laser pulses down to 50 ps full width half maximum, a repetition rate...
PicoQuant GmbH
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MICROFOCUS LASER
StockerYale Inc. has released its Lasiris Micro-Focus Laser. The MFL series projects a 5.5-µm (±0.75 µm) line at 1/e2 out of a fully operational 5° fan-angle laser line projector. Standard and custom...
ProPhotonix Ltd.
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INDUSTRIAL UV LASER
Coherent Laser Div. has introduced a frequency-tripled, Q-switched, diode-pumped all-solid-state UV laser. The AVIA 355-4500 produces 4.5 W of average power at 25 kHz and is suitable for...
Coherent Inc.
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ZOOM BEAM EXPANDER
The Model 56C-30-2-8X motorized zoom beam expander from Special Optics Manufacture and Design offers a continuous expansion range of 2x through 8x, as well as a maximum input aperture of 10 mm and...
Special Optics Inc.
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MACHINABLE CERAMIC
Aremco Products Inc. has introduced a zirconia-phosphate-based machinable ceramic for the production of specialized brazing fixtures, induction liners, wafer chucks, optical stands and combustion...
Aremco Products Inc.
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POSITIONING STAGES
A side drive has been added to Del-Tron Precision Inc.'s line of micrometer-driven ball and crossed-roller positioning stages that reduces their length by 1 to 2.25 in. The stages are configured with...
Del-Tron Precision Inc.
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POWER TECHNOLOGY NAMES THE L92 AS ITS APRIL 2001 PRODUCT OF THE MONTH
PTI began manufacturing power supplies for Helium Neon gas lasers in 1969. At that time HeNe power supplies were larger than a common breadbox. The first HeNe power supply by PTI was smaller than a...
Power Technology Inc.
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ANALYZER ACCESSORIES
Analytical Spectral Devices Inc. has developed three sampling accessories for its LabSpec Pro near-IR analyzer, which is used in the chemical, pharmaceutical, petrochemical and food industries. The...
ASD Inc.
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