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Photonics Spectra - February 2000
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Issue Library
Features
Photonics Design & Solutions: Medical Technology Borrows from Industrial Laser Systems
Just as cutting, welding and drilling are industrial applications, so are they medical applications. Lasers that enable machine tools also enable, in skilled hands, delicate surgical instruments. The...
Extreme Photonics: Ultrafast Lasers
The 1999 Nobel Prize in chemistry rewarded not only Ahmed Zewail’s pioneering work on ultrafast spectroscopy and femtochemistry, but also the entire field of ultrafast optics and femtosecond...
Extreme Photonics: Mega Mirrors
When Mary Edwards wanted to look for interior flaws in the glasswork her colleagues were making, she took off her jewelry, removed her shoes and belt buckle, and emptied her pockets of sharp objects....
Extreme Photonics: Repetition Rates
Ultrashort pulse generation was totally dominated by lasers that only highly skilled researchers could operate in well-equipped laboratories. The equipment was not suitable for industrial...
Technology Close-Up: Fast Cameras Meet the Need for Speed
Every weekend, all over the world, millions of people relax at home by watching televised sporting events. Often, slow-motion instant replay allows viewers to observe an event that was too fast for...
Extreme Photonics: Wavelength Measurement
Spectroscopists have long needed to measure and catalog the "exact" absorption wavelengths of atoms and molecules. But accurate wavelength measurement is not just for spectroscopy anymore. Two...
Tech Pulse
Detector Probes Beauty and the Big Bang
An outstanding problem ties the realms of the subatomic and the cosmic: The very existence of the universe seems to violate a tenet of the standard model of particle physics -- charge parity...
Fluorescent Biosensor Is Sensitive, Fast
LOS ALAMOS, N.M. -- By using polymers as fluorescent sensors, a new device has demonstrated detection sensitivity potentially a million times greater than conventional single-molecule-based...
Chip-Scale Packaging Applied to CMOS Sensor
Photobit Corp. of Pasadena, Calif., and ShellCase Ltd. of Jerusalem have implemented wafer-level chip-scale packaging for complementary metal oxide semiconductor (CMOS) digital imaging sensors....
Deep Inversion Offers Fast Modulation
FREIBURG, Germany -- Electro-optic modulators need to have a fast response, high bandwidth, a low drive voltage, low coupling loss and high stability, and they need to be small and capable of being...
Laser-Excited Fiber Provides Highly Visible Escape Routes
An emergency onboard an offshore oil installation is too often fatal. Hundreds of yards of passageways can become a deadly maze when smoke and darkness obscure landmarks and escape routes. Lifor...
Researchers Approach Lab on a Chip
LONDON -- Scientists striving to miniaturize equipment used in analysis systems have gained ground with the development of an optical emission detector on a glass chip. The device is 1000 times...
Researchers Develop Mid-IR Room-Temperature Laser
WASHINGTON -- Researchers from the US Naval Research Laboratory and from Sarnoff Laboratories and Sensors Unlimited, both of Princeton, N.J., have developed what they say is the world’s first...
Lucent Exhibits Free-Space Video
Lucent Technologies of Murray Hill, N.J., demonstrated its WaveStar OpticAir networking system for cable television providers at the Western Cable Show in Los Angeles in December. The laser-based...
Masks Team Up to Beat Light's Limits
The wavelength of exposure light is an inherent limitation in optical lithography. Semiconductor manufacturers are making use of shorter-wavelength lasers, larger numerical apertures and...
Lasers Amplify Matter Waves
Two teams have independently reported the phase-coherent amplification of matter waves. The technique promises to lead to the development of active matter-wave devices with applications in metrology...
Simple Minigyro Achieves Accuracy
WILMINGTON, Mass. -- Measuring angular rotation is essential to the proper operation of missile guidance systems, satellites, automotive skid control and navigation systems, and other applications....
Observatory Receives Fourth Mirror
Optics manufacturer REOSC of St.-Pierre-du-Perray, France, formally presented in December the last of four 8.2-m primary mirrors for the European Southern Observatory’s Very Large Telescope at...
NASA Readies Microscope for Space Mission
BROOK PARK, Ohio -- Scientists at NASA’s Glenn Research Center in Cleveland and Dynacs Engineering are adapting a microscope for the International Space Station’s fluid combustion...
All-Optical Network Field-Tested
Qtera Corp. of Boca Raton, Fla., and Qwest Communications International Inc. of Denver have completed a 30-day field trial of an all-optical network. The system transmitted 10-Gb/s signals over 2400...
Photek Produces 150-mm Image Intensifier
Photek Ltd. of St. Leonards-on-Sea, UK, has announced that it has produced a prototype 150-mm-diameter zoom image intensifier, which it claims is the largest ever constructed. The device has...
Polarized Laser Light Helps Reveal Porous Structures
CAMBRIDGE, Mass. -- As a rule, nuclear magnetic resonance (NMR) imaging has relied on liquid probes because gases are too low in density to return a strong signal. Scientists at the...
IR Spectra Reveal Red Oxygen
At 100,000 times atmospheric pressure, solid oxygen turns red. Researchers have been aware of the phenomenon since 1979; now a team in Florence, Italy, has an explanation. Using Fourier transform IR...
Sharp Sensor Rivals 35-mm Film
Herman L. Peek and associates at Philips Semiconductors Image Sensors in Eindhoven, The Netherlands, have developed a full-frame charge-coupled device with the image quality of standard 35-mm film....
Fiber Eases Single-Molecule Detection
GAINESVILLE, Fla. -- Several fluorescence techniques have emerged recently that meet the challenge of detecting single molecules. The emphasis now is on observing molecular reactions. Because many...
Space Technology Comes Down to Earth
Researchers at the University of Leicester in the UK are developing an imaging system with applications in archaeology, forensics, geology, silicon chip production, and the food and automotive...
light speed
Diode Lasers Power Growth in Sales
A study by market consultants Frost & Sullivan of San Antonio reports worldwide revenues of $3.8 billion for the laser systems market in 1998. Sales of diode lasers were responsible for nearly half of that total. The communications industry represented the largest segment of end-user consumers of diode laser systems. The study forecasts robust growth in laser systems, following the...
Photonics Open House Announced
Yuba College in Marysville, Calif., has scheduled an open house for recruiters and its first class of laser optics technology students. The event, which will be held Saturday, April 15, will...
Photonics Incubator Founded
Responding to the successes of Internet start-ups, Milton Chang, chairman of New Focus Inc., Tom Baer, president and CEO of Arcturus Engineering, and Bill Nighan, former director of engineering at...
’I’ll Take One Blue LED ... and One in Green’
FAIRFAX, Va. -- Americans who face a daily barrage of credit card applications and catalogs may find this hard to believe: Germany wants more American junk mail. Officials with Deutsche Post AG, the...
Ortel’s 980-nm Pump Laser Re-emerges
ALHAMBRA, Calif. -- When Ortel Corp. took a brand-new line of 980-nm pump lasers off the market early last year -- writing off $4.6 million in operating losses -- things looked grim. "It was...
Nidek, Visx Exchange Patent, Antitrust Allegations
SAN FRANCISCO -- Allegations of patent infringement by excimer laser manufacturer Visx Inc. against Nidek Inc. have been aired in multiple courts of law, but analysts say it’s the technology...
Technology Firms Focus on R and D
COLUMBUS, Ohio -- US companies are expected to increase research and development funding by 10.6 percent this year, continuing a trend in corporate research financing that began in 1997, a noted...
Reports Cite Problems of UK Engineers
Research from the Engineering Council in London challenges the claim that engineering contributes only 8 percent to the UK’s gross domestic product. The report, "Engineers for Britain: The...
Companies Play It Safe With Risk Assessment
WASHINGTON -- Photonics companies venturing into the global marketplace may find the local gumbo a bit spicy. But specialists who provide risk assessment -- everything from political intelligence to...
Shavers Named Undersecretary for Technology
The US Department of Commerce has appointed Cheryl L. Shavers as undersecretary of commerce for technology. As head of the department’s technology administration, she will oversee the Office of...
International Metrology Standards Move Online
The National Institute of Standards and Technology (NIST) in Gaithersburg, Md., and the International Bureau of Weights and Measures in Sèvres, France, have announced the establishment of an...
Accent on Applications
Lambda Physik Wins Ordersfrom SVG Lithography Systems
Lambda Physik, a majority owned subsidiary of Coherent Inc., has received new orders for its NovaLine A4020 and NovaLine F2020 lasers from Silicon Valley Group (SVG). According to Dirk Basting, Lambda Physik's founder and president, the sale illustrates the importance of 193-nm technology for semiconductor manufacturing and shows that both companies are committed to the evolution of this...
Spectrophotometer Finds Cure for Edo Blues
Art historians studying the work of Japanese masters of ukiyo-e paintings had a problem: This style used very thin layers of paint. "It was impossible to get a fragment to work with," said Marco...
Analysis Software Images the Forgotten Crop.
Alfalfa is the forgotten great crop in the US. As the fourth-largest in the country, behind corn, soybeans and wheat, the bulk of the estimated $6.4 billion annual alfalfa harvest is destined for...
High-Speed Camera Produces Radical Images
Movies of molecular reactions in a turbulent flame are providing a better understanding of the interactions between reactions and turbulence, and could help engineers improve the efficiency of...
Laser Scanner Is a Model Helper for Construction Engineers
The redesign of a building generally requires engineers to make a three-dimensional "as-built" microstation model of the structure before they can even begin creating a scale representation....
Presstime Bulletin
Coherent to Purchase Microlase
Coherent Inc. of Santa Clara, Calif., plans to acquire the remaining 75 percent interest in Microlase Ltd. of Glasgow, UK. Coherent currently owns Microlase Optical Systems Ltd. and is a distributor...
JDS Uniphase, E-Tek Announce Merger Agreement
JDS Uniphase Corp. of San Jose, Calif., and Nepean, Ontario, Canada, and E-Tek Dynamics Inc. of San Jose announced that they have signed a merger agreement valued at approximately $15 billion....
MIT Aids Microscopy Development
Biologists at Massachusetts Institute of Technology in Cambridge, Mass., have agreed to develop a multimode microscopy system with Applied Precision Inc. of Issaquah, Wash., and Nikon Inc. of...
Inventor of Blue Diode Laser Leaves Nichia
Citing a personal desire to pursue his research in an academic environment, Shuji Nakamura has left Nichia Corp. (formerly Nichia Chemical Industries Ltd.) of Anan, Japan. While he expressed...
Review Faults Ignition Facility Management
A task force that US Secretary of Energy Bill Richardson had appointed to investigate the National Ignition Facility reported that the project’s problems are the result of unrealistic design...
Thermo Electron Companies Merge
Waltham, Mass.-based Thermo Electron Corp. announced that the shareholders of its Thermo Vision Corp. and ThermoSpectra Corp. have approved the mergers of the companies into its public subsidiary,...
Products
POWER DETECTOR PROBES
Gentec Inc.'s 150- and 300-W fan-cooled power detector probes are equipped with an extreme-damage-threshold coating for UV light. The PS-150 and PS-300 resist to more than 300 mJ/cm2 of maximum pulse energy density and more than 25 MW/cm2 of maximum peak power density at 248 nm. The probes have a 60-mm aperture and measure 124 x 120 x 120 mm.
Gentec Electro-Optics Inc.
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UV PHOTODIODE
The JEP 5-400 GaP photodiode from Laser Components GmbH features a twofold increase in sensitivity compared with the JEA 2.2 device. The active area of this ultraviolet detector is 4.8 mm2. The...
Laser Components Germany GmbH
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FIBER COLLIMATORS
Micro Laser Systems has unveiled fiber optic collimators that have high wavefront quality and no diffraction effects. The devices are available with 1.6-, 10-, 20- and 45-mm beams, as well as with...
Micro Laser Systems Inc.
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FIBER OPTIC COUPLERS
Micro-Optics Inc.'s 1xN polarization-maintaining (PM) fiber optic couplers are available in 1 x 2, 1 x 4 and 1 x 8 configurations. The couplers have >55-dB return loss, >20-dB extinction ratio...
Micro-Optics Inc.
WHITE LIGHT TEST SOURCE
The ASE-FL7200 test source from Thorlabs Inc. produces amplified spontaneous emission from 1440 to 1500 nm with a spectral density of >-20 dBm/nm at 1450 to 1490 nm. The thulium-doped fluoride...
Thorlabs Inc.
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FRAME GRABBER
The Matrox Orion is a frame grabber from Matrox Imaging that supports standard color/monochrome video capture and integrates a display section based on the MGA G400 graphics controller from Matrox...
Matrox Imaging
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VIDEO RECORDING
The Video Taker from IO Industries Inc. is a video recording software package for recording applications from standard video formats. The software includes a scripting language that allows users to...
IO Industries Inc.
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MACHINE VISION SOFTWARE
SpecTiv LLC offers Halcon 5.2, machine vision software by MVTec Software GmbH, designed for use in applications from bar-code reading to medical image analysis and remote sensing. Halcon's library of...
Optical Perspectives Group LLC
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EPOXY APPLICATION SYSTEM
A microprocessor-based epoxy dispenser that uses a timed air pulse to apply epoxy is available from EFD Inc. It provides a controlled application of epoxy that reduces excess adhesive buildup on...
Nordson EFD
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VOLTAGE CONTROL
Trek Inc. offers the PZD700 piezo driver/amplifier for laser modulation, semiconductor research and piezoelectric vibration clamping. The CE-compliant instrument controls output voltages in one of...
TREK Inc.
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CO
2
LASER
A 50-W air-cooled laser engraving/cutting system has been released by Universal Laser Systems Inc. The unit contains a 24 x 12-in. work area and enough power for most applications, including...
Universal Laser Systems Inc.
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FIBER-COUPLED LASERS
Blue Sky Research has introduced single-mode fiber-pigtailed laser modules based on its CircuLasers and proprietary fiber packaging. The FiberMax line extends the performance specifications of the...
Blue Sky Research
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GREEN LASER MARKER
The Power Line 30D/SHG frequency-doubled laser from Rofin-Sinar Laser GmbH provides a 532-nm wavelength suitable for industrial marking applications in processing semiconductor materials, plastics...
Rofin-Sinar Laser GmbH
LASER DIODE MOUNT
ILX Lightwave Corp. has introduced a module for mounting DIL-packaged laser diodes. Each LDM-4616 16-channel laser diode mount module has four laser diode sockets, and up to four modules can be...
Newport - ILX Lightwave, Photonics
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LASER BEAM STEERER
An adjustable beam steerer that attaches to the Microgage measurement and alignment tool is available from Pinpoint Laser Systems. The two devices form an alignment system for machinery and fixtures...
Pinpoint Laser Systems
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Nd:YLF PULSED LASERS
Geola uab has unveiled a line of blue and panchromatic Nd:YLF pulsed lasers that are suitable for medical imaging, spectroscopy, photochemistry, remote sensing, holography, interferometry,...
Geola Digital Ltd.
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STATIC-FREE LIGHTING
Stocker & Yale Inc. offers electrostatic-discharge-safe fiber optic goosenecks and ringlights for use with fiber optic illuminators. The fiber delivers shadow-free, cool, bright illumination for...
ProPhotonix Ltd.
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OPTICAL SYSTEMS ANALYSIS
Breault Research Organization Inc. has released version 6.6 of its Advanced Systems Analysis Program (ASAP) for testing three-dimensional optical systems. ASAP 6.6 contains more than 30 new features,...
Breault Research Organization Inc.
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OPTICS PACKAGING
Gelatin capsules for packing optical and electronic components are available from Torpac Inc. The company says the capsules are clear, strong, flexible and 100% biodegradable, and they do not emit...
Torpac Capsules Inc.
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SAPPHIRE WAFERS
Meller Optics Inc. produces ultraflat sapphire wafers for use as base plates for mounting substrates in semiconductor device manufacturing. The wafers have flatness to 0.5 fringes of HeNe and...
Meller Optics Inc.
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TELESCOPE EYEPIECES
The Radian series of long eyepieces from Tele Vue Optics Inc. was designed for planetary and deep-sky observation with telescopes of any size, type or f/number. The 1-1/4-in.-diameter eyepieces use...
Tele Vue Optics Inc.
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MICROPOSITIONING
The Supper 360° microrotation stage from Charles Supper Co. Inc. features a 45:1 turn ratio for controlled positioning of diodes, mirrors or other devices that fit its 1/8-in.-diameter mounting...
Charles Supper Co. Inc.
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LARGE-AREA NONCONTACT SURFACE MEASUREMENT
The OSP500LM noncontact surface profiling, measurement and gauging instrument from Uniscan Instruments Ltd. is designed for high-speed metrology applications where surface measurement at the micron...
Uniscan Instruments Ltd.
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MEASURING SYSTEM
Physik Instrumente GmbH & Co. presents its family of capacitive displacement sensing systems for static and dynamic measurements. With a resolution <0.1 nm and a range of 15 to 500 µm,...
PI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo Mechanics
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LASER POWER METER
The Orion/PD from Ophir Optronics Inc. was designed to provide a low-cost laser power meter for industrial, medical and scientific applications. The Orion/PD supports the company's photodiode heads...
MKS Ophir, Light & Measurement
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