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Photonics Spectra - July 1997
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Issue Library
Features
Plastic Makes the Grade
Plastic optics have taken a huge leap taken since the 1960s, when, a plastic magnifier epitomized the technology's high end. Today, the plastic diffractive optics landscape can only be described as dynamic.Plastic diffractive optics are finding homes in such diverse applications as automotive displays and lighting; gratings that convert a single laser beam into multiple beams; and plastic...
Taking the 'Hype' out of Hyperspectral Imaging
Since Landsat's launch more than 30 years ago, everyone from agriculturists to utility executives have looked to airborne and satellite spectral imagers to lift the veil of mystery surrounding...
Imaging with Nonlinear Optics
One of the more surprising applications of femtosecond lasers is the imaging of sensitive biological structures, which appear to tolerate the onslaught of peak power densities of more that 1011...
Instrumentation Keeps Pace with Pulsed Lasers
Ss the laser solves more and more problems in industry and the laboratory, applications follow for laser instrumentation that can analyze a laser's power, energy, beam quality and stability. And as...
Telecentric Lenses: Gauge the Difference
For decades, engineers developing metrology instrumentation have used telecentric lenses in their products. Contour projectors and optical comparators, for example, owe much of their measurement...
Tech Pulse
3-D Pits Boost Optical Storage
EMERYVILLE, Calif. -- Two researchers have developed an encoding technique that could revolutionize the world of CD-ROMs and digital video discs, essentially tripling their storage capacity. To...
Two-Photon Imaging Offers Backside Peek at Chips
Single-photon, optical beam-induced- current imaging is a valuable tool for the quality control of integrated circuits. However, this technique has become increasingly ineffective because of the...
American Blue Diode Laser Pulses Atop Silicon Carbide Substrate
DURHAM, N.C. -- Cree Research Inc. has demonstrated a pulsed blue semiconductor diode laser that operates at room temperature -- a first step in a race for a commercial device that would greatly...
Samarium Laser Emits X-Rays
A group of British scientists successfully demonstrated the operation of a saturated nickel-like samarium x-ray laser beam at 7 nm with an output energy of 0.3 mJ in 50-ps pulses. The narrow...
Excimer Lasers, High-NA Optics Push Lithography
BALTIMORE -- Developments in excimer lasers and high numerical aperture optics technology are pushing photonics into the forefront of semiconductor microlithography, where laser-created feature sizes...
US Strengthening Flat Panel Display Manufacturing Technology
The United States Display Consortium, a group of flat panel display manufacturers and developers, has initiated 33 projects to bolster the US infrastructure and supply base.The consortium has...
Putting Photons on Hold Improves Processing
To store or process information encoded as light signals, it is often necessary to slow down strings of photons.A group of scientists from the University of Munich has developed a semiconductor...
Just One Second!
To keep the world's atomic clocks synchronized with the Earth's rotation, the National Institute of Standards and Technology's Time and Frequency Div. added a "leap" second June 30. This is the 21st...
Lidar Monitors Vapor, Wind
Researchers at the Max-Planck-Institut für Meteorologie are developing a ground-based differential absorption lidar technique to remotely monitor water vapor and take wind measurements. A...
Pigment Holds Promise for 3-D Machine Vision, Optical Computing
JERUSALEM -- A saltwater-borne bacterium may provide the key to the development of parallel optical computers and real-time 3-D robotic vision. Bacteriorhodopsin, the pigment protein derived from the...
Quantum Cascade Laser to Play Key Role in Gas Detection
MURRAY HILL, N.J. -- A new laser-based sensor could mark a breakthrough in the detection of minute quantities of trace gases and pollutants.The exceedingly sensitive device is capable of detecting...
Technique Offers Real-Time 3-D Microscopy for Materials
JENA, Germany -- German microscope manufacturer Carl Zeiss Jena GmbH has developed a technique that it says provides three-dimensional, real-time microscopic images with the high resolution and sharp...
Ultraviolet Laser Combines Steps in Wafer Doping
SAN JOSE, Calif. -- An instrument that employs a laser doping process could combine the lithography and silicon doping steps in the manufacture of integrated circuits.The device, a deep-UV stepper...
UV Imager Catches Comets Targeting Earth
BALTIMORE -- Having a winning design for a satellite imaging device can have rewards beyond the recognition associated with winning a NASA contract. Just ask Iowa University's Louis A. Frank, who...
Employees Can't Wash Away Restroom Sensor
RED BANK, N.J. -- Mother always told us to wash our hands after visiting the bathroom. But Mom can't follow restaurant, hotel and hospital workers into the restroom at break time. Fortunately,...
X-Ray Tool Aids Laser Design
MURRAY HILL, N.J. -- Scientists at Bell Laboratories have developed a tool that uses x-ray technology to measure strain in small volumes of material for laser manufacturing and quality control...
light speed
Caveat emptor: One laser does not fit all
BALTIMORE -- It's buyer beware as manufacturers of diode-pumped Nd:YAG solid-state lasers seek to replace arc-discharge lamp-pumped devices with the "all-purpose" laser. Users should carefully consider their applications before investing in the most accurate, most powerful and, inevitably, most expensive instruments. That was the advice that laser vendors offered an audience of end users during...
CLEO Attendance Falls
CLEO '97 (Conference on Lasers and Electro-Optics) held in Baltimore failed to attract as many attendees as it did last year. There were 6644 total attendees this year compared with 6936 for the...
New Focus Eyes OEMs
In an effort to provide frontline support to its OEM customers, New Focus Inc. of Santa Clara, Calif., has hired Gregory Smolka, formerly of Big Sky Laser Technologies, to the new position of OEM...
You can't rush genius; maybe you can track it
CARLISLE, Mass. -- Is it possible to track the invention of photonics technology so that the marketing and funding of the technology can follow in a logical and competitive fashion? One theory that...
Japanese Electronics Industry Takes a Hit
Prices on computer memory chips nose-dived recently, cutting sharply into group profits for some of Japan's leading makers of electronic products. Toshiba Corp., Fujitsu Ltd. and Mitsubishi Electric...
Laboratories' Contracts up for Renewal
WASHINGTON -- The US Department of Energy (DoE) and the University of California are negotiating new contracts for the management of Lawrence Livermore, Lawrence Berkeley and Los Alamos national...
NIF Breaks Ground
At a ceremony attended by US Secretary of Energy Federico Peña, ground was broken for the National Ignition Facility, the centerpiece of a program to maintain the US nuclear arsenal without...
Rome scientist Hendrickson dies
ROME, N.Y. -- Brian M. Hendrickson, associate chief scientist for photonics at Rome Laboratory, died at 53 after a brief illness.Hendrickson had been with Rome Laboratory for 29 years, both in the...
Science Foundation Funds Connections to Speedy Computer Network
The National Science Foundation has made grants to 35 research institutions in the US, enabling scientists to communicate and share resources on the foundation's high-speed Backbone Network Service....
SDL Settles with Spectra-Physics in Technology Transfer Lawsuit
"Never underestimate the power of incumbent technologies to be improved and to hold their ground."David Shaver, MIT Lincoln Laboratories, on the semiconductor industry's incorrect belief that lasers...
Laser Ultrasonics Drive the Nondestructive Testing Market
Laser-based systems will drive ultrasonic testing to the forefront of the nondestructive testing (NDT) market, says an analysis of the US NDT market released by Maxtech International. The systems are...
Accent on Applications
Desert Nomads Rely on Photonics to Find Fertile Ground
United Nations organizations are increasingly employing satellites and high-resolution imaging to combat desertification, pests and pollution. In one striking example, modern remote-sensing...
Dynamic Duo Streamlines Evidence Detection
Any "whodunit" fan is familiar with the scene where the sleuth uncovers a vital clue from a pad of paper by rubbing it with a lead pencil to bring out the impressions of handwriting from the previous...
Photonics Ensures Quality of Flexographic Printers' Rolls
It is certainly an understatement to say that maintaining consistently high-quality graphics is a priority in the printing industry, and manufacturers of printing equipment face a formidable task in...
Giant Robots Build Airplanes with the Aid of Laser Tracking
Juggling takes skill and focus. Imagine, then, juggling sections of airplanes that weigh 100,000 lb and that must be matched to within thousandths of an inch.That was the situation Ed Chalupa and two...
Presstime Bulletin
Boston University Opens $80 Million Photonics Center
Wielding golden scissors, politicians and educators cut a ribbon and formally opened Boston University's state-of-the-art $80 million Photonics Center last month. On hand were Sens. Edward M. Kennedy of Massachusetts and Daniel K. Inouye of Hawaii. Both Kennedy and Inouye, the ranking Democrat on the Senate Appropriations Committee, were influential in obtaining $29 million from the US Department...
Resurfacing Fattens up Big Lens
A team of astronomers at the University of Arizona had a second try at creating the world's largest one-piece telescope mirror June 10. In April, it was discovered that 2 tons of glass had leaked out...
Newport's President and CEO Adds Title
Robert Deuster will assume the post of chairman of the board at Newport Corp., in addition to his duties as the company's president and chief executive officer. Deuster, 46, has been with Newport...
Sales Double for Laser, Electro-Optics Companies
Total sales have nearly doubled in the last five years for 19 leading companies in the laser and electro-optics industry, according to a report compiled by the Laser and Electro-Optics Manufacturers'...
Photonics Spectra Wins Awards
Laurin Publishing Co. has received four awards for editorial excellence in a competition conducted annually by the Northeastern Region of the American Society of Business Press Editors. All of...
Products
PMT PERFORMS PHOTON COUNTING IN THE INFRARED
Hamamatsu Corp.'s R5509-42 is a photomultiplier tube (PMT) that detects extremely low light levels at wavelengths up to 1400 nm. According to the company, this development allows a PMT to perform...
Hamamatsu Corporation
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DIODE CONTROLLER
EXFO E.O. Engineering Inc. has introduced the Laser Test 22, a high-performance laser diode controller for active component laboratory and manufacturer production testing and engineering...
EXFO Inc.
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EPOXY ADHESIVE
Summers Optical has developed a glass-to-metal epoxy adhesive system that meets military specification MIL-A-48611. It can be used to bond metal to metal, glass to glass, glass to plastic or metal to...
Summers Optical
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INCIDENT-LIGHT MICROSCOPE
Axiovert 25 CA is an inverted incident-light microscope with a modular design that its maker, Carl Zeiss Jena GmbH, says features high stability and easy operation. A rotary mechanical stage eases...
Carl Zeiss Microscopy LLC
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EXTERNAL-CAVITY NARROWBAND DIODE LASERS
New Focus Inc. has introduced a line of external-cavity diode lasers built to customer-specified wavelengths. The 6000 Vortex series is available in wavelengths from 630 to 1630 nm with tuning ranges...
Newport - New Focus
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LASER MARKING
The InstaMark Insignia imaging system from Control Laser Corp. can mark 1-mm-high characters at >80 linear inches per second, making it four times faster than many laser markers. With new...
Control Laser Corp.
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MID-INFRARED OPTICAL PARAMETRIC OSCILLATOR
The new periodically poled lithium-niobate optical parametric oscillator from Aculight features an integrated diode-pumped solid-state laser with wavelengths that cover the 1.36- to 5-µm range....
Lockheed Martin Laser and Sensor Systems
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SUPERACHROMATS
Ross Optical Industries has available superachromats that the company says yield aberration corrections at least three times greater than standard achromats. They are offered in diameters and focal...
Ross Optical Industries
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BEAMSPLITTING ACCESSORIES
National Photocolor Corp. is offering overnight delivery on its line of IR pellicle beamsplitters, filters and windows. The pellicles are available for selected bandwidths within the 700-nm to 5-µm...
National Photocolor Corporation
Request info >
PULSED RANGEFINDER
A pulsed laser rangefinder with a glass-fiber-coupled remote optical head and split optics design is offered by Riegl Laser Measurement Systems. The company's LD90-3100 EHS-GF and LD90-3300 EHS-GF...
Riegl Laser Measurement Systems GmbH
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