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Photonics Spectra - October 1997
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Issue Library
Features
Fiber-Coupled Raman Keeps Industry Under Control
Raman spectroscopy is fast emerging as a powerful online analytical tool. The worldwide market for process analysis instrumentation is between $2 billion and $3 billion a year. Photonic technologies...
Gas, Solid-State Lasers Battle for Printers' Best Impressions
With annual revenues exceeding $300 billion, the printing industry is the third largest manufacturing business in the world. Several types of lasers play critical roles in this market, helping to...
High-NA Optics Push the Resolution Limits
Many demanding optics applications are steadily increasing performance goals for imaging, focusing and collimating systems. Microlithography and compact disk lens designs are among those that...
Liquids and Gels Fill Gaps in Tricky Optical Designs
The physical and optical properties of liquids and gels make them ia naturali for solving problems in optics design applications. They can flow into the most difficult design situations, and...
Lasers in lithography: A race against time
In the 1970s, the scientific community believed that optical lithography could not create microcircuits on semiconductors with features smaller than 1.25 mm. It was wrong. Today, with the help of...
New lithography system shortens fabrication process
Instead of pushing to reduce the feature size on chips, one company is improving lithography by reducing the number of steps required to manufacture chip layers with non-critical dimensions, thereby...
Report should help insure optical supply
As insiders speculate whether the semiconductor industry will have enough CaF2 to meet the needs of deep UV lithographic systems, new information expected by the end of the year could provide the...
Scanners likely to overtake steppers
While thereis not a complete consensus, several experts including and Intel, the worldis largest chip manufacturer, say that step-and-scan lithography machines will likely usurp the favored-son...
Tech Pulse
Laser maker aims at paparazzi
MARCOUSSIS, France -- While the world's wrath turned on the paparazzi in the wake of the death of Diana, Princess of Wales, one French laser maker has done something about it. Photographers skulking...
Researchers Bend X-Rays
A pair of Harvard University researchers have discovered a way to manipulate the direction of an x-ray beam, an advance that could someday lead to an improved x-ray laser. Normally, x-rays pass...
Scientists Construct Model to Illustrate Behavior of Optically Excited Materials
A group of researchers based at the University of Rochester and led by Shaul Mukamel has developed a set of theoretical models that illustrate how properties of both small and large molecules change...
Cameras Play Traffic Cop
TWINSBURG, Ohio -- The next generation of traffic control systems, employing the latest in video imaging and detection, should be operational in a suburb of Akron by midsummer of next year. Unlike...
Femtosecond laser offers big benefits
NEW ORLEANS -- Picking cotton has gone high-tech, and soon photonics will help processors pick nothing but the best. Scientists at the US Department of Agriculture's Southern Regional Research Center...
Femtosecond laser offers big benefits
CAMBRIDGE, Mass. -- A group of Harvard University researchers has demonstrated a technique for blasting miniature holes in transparent materials that could mean big advances in a number of photonic...
FTIR Examines Engine Deposits
CHESTER, UK -- Collaborators from Queen's University in Kingston, Ontario, Canada, and the Shell Research and Technology Centre Thornton in Chester have combined chemical separation with Fourier...
Researchers Grow Ultrapure Crystals in High-Vacuum System
Scientists have long known that the fewer impurities there are in a semiconductor material, the faster electrons can travel through it. Impurities act as roadblocks, scattering and reducing their...
Holographic Reflector Provides Whiter, Brighter LCDs
CAMBRIDGE, Mass. -- Scientists at Polaroid Corp. have developed a holographic reflector that promises to make color LCDs whiter and brighter. The secret lies in a transmission hologram that sits...
Sensors Made Light-Sensitive
The Consumer Systems Group of the Motorola Semiconductor Products Sector in Chandler, Ariz., and Eastman Kodak in Rochester, N.Y., have developed a tiny filmless camera using Motorola's patented...
Los Alamos Researchers Use Protons to Photograph Detonation Waves
For the first time, scientists have used a technique known as proton radiography to image a dynamic experiment. Researchers at Los Alamos National Laboratory's Neutron Science Center sent a proton...
MCI Tests Hitachi Telecom Optical Cross-Connect Systems
MCI has begun trials of a system from Hitachi Telecom that enables the complex restoration of high-speed transmission routes on optical networks. The MCI-Hitachi application employs five optical...
Microwaves Take the Red out of Rubies
Researchers at Wayne State University in Detroit have used a magnet and a shower of microwaves to reduce the redness of rubies and increase their transparency. Although the method, called...
Researchers Demonstrate High-Power, Aluminum-Free Mid-IR Laser
Scientists at Northwestern University's Center for Quantum Devices in Evanston, Ill., have demonstrated an aluminum-free diode laser that emits up to 3 W at 3.2 µm. In comparison, similar...
NASA Unveils Advanced X-Ray Telescope
A team of Eastman Kodak engineers completed its next-generation x-ray telescope for NASA's new Advanced X-Ray Astrophysics Facility. Slated for launch in August 1998, the telescope will be a key...
NIST Develops Stable Optical Retarder
Scientists at the National Institute of Standards and Technology's (NIST) Optoelectronics Div. have developed a stable linear optical retarder for use as a calibration reference. Optical retarders,...
Polymer could be key to faster optical switching
SALT LAKE CITY -- Researchers have developed a technique that uses a polymer to create an ultrafast, exciton-based optical switch that operates 10 times faster than current technology. Today optical...
Researchers Patent Handheld Probe
SEATTLE -- For more than 15 years, scientists have fine-tuned a technique that determines the presence and concentration of chemicals by analyzing reflected light. Known as surface plasmon resonance,...
Raman Spectroscopy Could Simplify Pollution Monitoring
COLUMBIA, Mo. -- Power plants must continuously track the amount of carbon monoxide, sulfur dioxide and nitric oxide that emit from their smokestacks. There usually is a separate detection system for...
Researchers fired up about infrared alarm
WEST LAFAYETTE, Ind. -- The old adage "Where there's smoke, there's fire" could give way to "Where there's flickering infrared radiation, there's fire," if researchers at Purdue University have their...
Robomower cuts grass, misses dog
GAINESVILLE, Fla. -- The hours of sweaty, dusty, laborious lawn mowing may soon be over, thanks to a robotic lawn mower under development at the University of Florida's Machine Intelligence Lab....
FORTE Satellite to Record Lightning Strikes
The FORTE satellite is orbiting Earth after a successful launch on Aug. 29. The satellite, which is a joint project of Los Alamos National Laboratory and Sandia National Laboratories in New Mexico,...
Sensor reveals steak freshness
SWANSEA, UK -- Scientists have developed an inexpensive thin-film oxygen sensor with emission bands in the visible region that fluoresces under a simple UV light source. The sensor could have...
Lasers Improve Uranium Enrichment
LIVERMORE, Calif. -- Nuclear energy provides about 20 percent of the electricity used in the US, but separating uranium isotopes for power generation has been a power-hungry task itself -- until...
light speed
China Raises Barriers to Telecom Market
China has decided against opening its massive telecommunications market to foreign service providers, citing the dearth of laws to guarantee fair competition. In addition, the posts and telecommunications sectors have not been separated, and foreigners would shy away from the money-losing postal sector. China's minister of posts and telecommunications, Wu Jichuan, also said he has not been able...
Market Sleuthing Uncovers Clues to Customers
CHICAGO -- Every year companies spend millions of dollars on focus groups and marketing surveys to get the big picture of their customer base. But they might do well to investigate the individual...
EG&G to Supply Detector for GE Digital X-Ray
SANTA CLARA, Calif. -- An amorphous silicon detector built by EG&G in Santa Clara will form the backbone of General Electric's new digital x-ray system, which could reduce or eliminate the need...
Europeans: US Plan Imperils Agreement on Communications
BRUSSELS, Belgium -- The European Union has warned the US Federal Communications Commission that it risks violating an international agreement because of its plan for protecting US telecommunications...
Idaho Earmarks Funds for Laser Isotope Project
Idaho State University will receive $125,000 for a laser isotope separation project planned for either Idaho Falls or the university's campus in Pocatello. Project director Jay Kunze said he wanted...
Executives Report Lowest Level of Job Satisfaction Ever
A survey conducted by Rider University in Lawrenceville, N.J., reports that only 26 percent would continue working at their jobs if money were not an issue. About 39 percent said they would stop...
Laserscope Receives Approval for Lung Cancer Treatment
The US Food and Drug Administration granted premarket approval to Laserscope of San Jose, Calif., for use of its laser systems for photodynamic therapy, a cancer treatment that has shown promise in...
White House Taps University of Rochester's Duncan Moore for National Post
ROCHESTER, N.Y. -- President Clinton has nominated the University of Rochester's Duncan T. Moore for the White House post of associate director for technology. Moore, who has helped chart the course...
Customers Look for Quick Calibration
LAKESIDE, Calif. -- The next time Mr. Fixit promises a turnaround of two weeks, you might want to get it in writing. In the optical calibration and repair industry, however, recent customer...
Silicon Valley Group Purchases Optics Manufacturer
SAN JOSE, Calif. -- Silicon Valley Group Inc., a supplier of automatic wafer processing equipment to the semiconductor industry, agreed last month to acquire precision optics manufacturer Tinsley...
Sony Leads Effort to Capture DVD Market
Sony has once again decided to break ranks with competing electronics companies by leading an effort to develop standards for digital video discs. More than a decade ago, the company failed in its...
Entrepreneurs vs. Managers: Time Spent Differently
Business managers and entrepreneurs may have a lot of similar responsibilities, but they spend their time differently, according to a survey released by St. Mary's University in San Antonio, Texas....
Uniphase Acquires Grating Producer
SAN JOSE, Calif. -- Continuing its aggressive pursuit of the ever-burgeoning telecommunications market, Uniphase Corp. has acquired 49 percent of Indx, a small Australian producer of fiber Bragg...
Accent on Applications
Digital Camera Saves Airline Time and Money
'United Airlines' System Aircraft Maintenance Control Group's job is to keep a fleet of 570 aircraft in service and well-maintained so the planes are safe and the airline remains profitable. It can be costly for airplanes to be grounded because of mechanical problems. A United Airlines mechanic uses the Sony camera to image a faulty airplane part. A digital camera from Sony Electronics helps...
Fiber Optic Switch Sheds Light on Cancer Research
Researchers at the University of Pennsylvania are focusing on the application of near-IR light to probe the oxygenation states of tissues for diagnostic and functional imaging purposes. As part of a...
Fish Dine by Carefully Monitored Light
Do the gilled inhabitants of Georges Bank, an important feeding and spawning ground just east of Cape Cod, Mass., prefer to take their meals at high noon, or are their appetites whetted by the...
Spectrometer Makes Astronomical Debut
Amateur and university astronomers have more in common than a passing interest in stars. With the tight equipment budgets at universities today, professional astronomers often find themselves...
IR Cameras Keep Texas Police ALERT
Criminals in the Dallas area who rely on the cover of night are no match for local law enforcement's latest weapon. The US Department of Transportation and the Texas Transportation Institute recently...
Presstime Bulletin
Photons Collide to Create Matter
Since the dawn of the nuclear age, scientists have known how to generate light from matter. Now, a team of scientists at the Stanford Linear Accelerator Center has achieved the inverse: creating matter from light. They collided large crowds of photons together from a high-power short-pulse laser that packs a half trillion watts of power into a beam measuring only 6 µm. To increase the...
Hennage Steps Down as OSA Director
After four years at the helm of the Optical Society of America, David Hennage has stepped down as the society's executive director. OSA issued an announcement, saying, "The board of directors...
Horiba Acquires Optics Manufacturer
Horiba Ltd., a Japanese manufacturer of infrared analysis devices, has acquired the French optical equipment manufacturer Instruments S.A. The acquisition complements Horiba's existing line of engine...
Judge Denies NIF Injunction Lawrence Livermore National Laboratory
Judge Denies NIF InjunctionLawrence Livermore National Laboratory's $1 billion, 192-laser National Ignition Facility project will continue as planned following a federal district court judge's...
Defense Department May Fire Laser at Satellite
The US military is considering test firing a high-power chemical laser at a satellite circling Earth. Lt. Col. Bob Potter said no decision had been made on whether the laser at White Sands Missile...
Products
COLOR SENSORS
The E3MC RGB color sensor from Omron Electronics Inc. features a threshold sensitivity adjustment that allows high-precision color differentiation. Users can store up to four colors in memory, and...
Omron Automation
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DETECTOR HEADS
The C6990 and C6991 multichannel detector heads from Hamamatsu Corp. are designed to operate the company's InGaAs linear image sensors in the near-IR region. When combined with these sensors, the...
Hamamatsu Corporation
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IR DETECTORS
Newport Corp.'s D Series infrared detectors are designed for communications and other near-IR applications. They operate in the 950- to 1650-nm wavelength range and have responsivity levels from 0.6...
MKS/Newport
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FO FUSION SPLICER
The FW312 Automatic Fiber Optic Fusion Splicer from Aurora Instruments Inc. provides low splice losses with single-mode fiber and is supplied in a rugged self-contained package. Average splice loss...
Aurora Biomed Inc.
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IN-LINE OPTICAL FILTER
Santec Corp. has developed a miniature in-line optical filter module, the OFM-10, that is suited for erbium-doped fiber amplifiers' ASE noise reduction and other WDM transmission system applications....
Santec USA Corp.
FIBER OPTIC ATTENUATORS
Radiant Communications has released a new line of fiber optic in-line low-backreflection attenuators designed for telephone and CATV applications. The attenuated fiber eliminates the use of air gaps,...
Radiant Communications Corp.
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TRANSMITTERS, AMPLIFIERS
Scientific-Atlanta Inc. has introduced a series of modular 1550-nm externally modulated electro-optic transmitters and erbium-doped fiber amplifiers, and 1310-nm midpower fiber optic transmitters....
Fibercore
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MULTIFUNCTION WDM TESTER WITH 0.1-nm RESOLUTION
Anritsu says its new MS9715A WDM tester can be used at virtually any stage from manufacturing through maintenance. It operates from 1527 to 1567 nm and has a long-time measurement function that makes...
Anritsu Co.
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FILM DESIGN SOFTWARE
Kidger Optics has released Film Solutions, an add-on module for its FILM-2000 thin film design package. Film Solutions includes more than 120 design solutions for antireflection coatings, mirrors,...
Kidger Optics Associates
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GATED CAMERA
PCO Computer Optics GmbH has announced the DICAM-PRO, an intensified CCD camera that combines a microchannel-plate image intensifier with a high-resolution CCD sensor. The ultrafast gated camera...
PCO-TECH Inc.
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IMAGING SOFTWARE
Matrox Imaging Products Group has launched version 2.1 of the Matrox Inspector, a Windows-based imaging system for OEMs and integrators of machine vision, medical imaging and image analysis systems....
Matrox Imaging
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COLOR SENSORS
The E3MC RGB color sensor from Omron Electronics Inc. features a threshold sensitivity adjustment that allows high-precision color differentiation. Users can store up to four colors in memory, and...
Omron Automation
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EIGHT-SPOT UV CURING
Xenon Corp.'s accessory for the RC-600 linear lamp system provides eight individual and physically independent UV curing spots. Operating from a single light source, Option 2 is a harness that...
XENON Corporation
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MULTIFUNCTION WDM TESTER WITH 0.1-nm RESOLUTION
Anritsu says its new MS9715A WDM tester can be used at virtually any stage from manufacturing through maintenance. It operates from 1527 to 1567 nm and has a long-time measurement function that makes...
Anritsu Co.
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NEAR-IR DYES
Epolin Inc. has introduced its Epolite Near Infrared Absorbing Dyes for protective eyewear, instrumentation filters and heat shield glazing. The company says that the Class V dyes have excellent...
Epolin
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TEMPERATURE CONTROLLER
The LCP-3215 from Wavelength Electronics is a temperature controller that handles small loads such as laser diodes and detectors. Interfacing with thermistors, the controller achieves stabilities of...
Wavelength Electronics Inc.
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LASER DIODE
Renishaw Inc. is offering a compact diode laser designed specifically as a source for Raman microspectroscopy. Featuring a 30-mW frequency-stabilized output, the laser has no side modes and is free...
Renishaw Inc.
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FLATBED LASER
Trumpf Inc. has developed the Trumatic L2530 flatbed laser system for cutting a variety of materials, including sheet metal of various thicknesses. The machine can be configured to the user's...
TRUMPF Inc., Laser Technology Center
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TUNABLE INJECTION-SEEDED OPO LASER SYSTEM
Opotek Inc. is offering the Finesse, a narrow-line tunable OPO laser system designed for laser-induced fluorescence, remote sensing, lidar and high-resolution spectroscopy. The device is composed of...
OPOTEK LLC
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VISIBLE SOURCE
The Model ISV400 integrating sphere visible source system from Electro Optical Industries Inc. was designed specifically for test and calibration of visible sensor systems such as photometers and CCD...
HGH USA
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OPTICAL COATING
Labsphere's Optoblack diffuse coating is designed for use in the 0.25- to 16-µm wavelength region. The coating displays high lambertian characteristics and high light absorption necessary for...
Labsphere Inc.
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FRESNEL OPTICS
JML Optical Industries Inc. has added large Fresnel lenses to its line of precision optics. In-stock and custom-made plastic lenses are available for a number of applications such as overhead...
Thorlabs Lens Systems
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MIRROR SUBSTRATES
AlumiPlate Inc. produces beryllium and AlBeMet mirror substrates for applications such as aerospace and defense imaging, and commercial scanning. These diamond-machined devices are plated with the...
AlumiPlate
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SIX-AXIS POSITIONING
The PI F-206 six-axis positioning system is now available from Physik Instrumente. It provides 1-µm accuracy and six degrees of freedom and allows the user to define the pivot point. Rotation...
PI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo Mechanics
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ERROR MEASUREMENT AND COMPENSATION SYSTEM
The Ultracomp on-machine form measurement system from Precitech features corrective form error compensation, enabling cost-effective form measurement of continuous, on-axis aspheric components. The...
AMETEK Precitech Inc.
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PORTABLE SPECTROGRAPH
Control Development Inc. has introduced a portable spectrograph system suited for LED and laser diode quality control, colorimetry, online chemical analysis and pharmaceutical applications. The...
Control Development Inc.
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