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Photonics Spectra - November 2002
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Issue Library
Features
Who’s Who?
Biometrics isn’t just a good idea. It’s the law, as spelled out in the Enhanced Border Security and Visa Entry Reform Act of 2002 and various other regulations. Passed in May, the law mandates identification based on the measurement of physical characteristics such as fingerprints, retinal patterns and facial features. Biometric techniques promise identification that can’t be...
A New Spin: Thin-Disc Yb:YAG Lasers
If asked to name a solid-state laser, most people would mention the Nd:YAG. This trusty combination of neodymium and yttrium aluminum garnet has served industry well for many years. The YAG crystal...
Why Photomultipliers Need Amplifiers
Photomultipliers remain the preferred light detectors for many applications, mainly because they combine a detection area up to 1500 cm2 with electron multipliers -- internal amplifiers of...
Adaptive Optics
In confocal and multiphoton microscopy, light travels to the focal plane and excites fluorescence in the sample, and the fluorescence travels back through the optics to a detector. During this trip,...
Measuring Birefringence in Calcium Fluoride at 157 nm
In recent years, leading-edge optical lithography has been moving to ever-shorter wavelengths: from 248 nm (KrF excimer laser) to 193 nm (ArF excimer laser) and now to 157 nm (F2 excimer laser). At...
Tech Pulse
Imaging Gets the Drop on Radioactive Waste
Radioactive waste disposal generally entails vitrifying the waste into a glassy solid. Initial processing can involve spraying the waste into an industrial flame reactor, where the intense heat...
UV/Blue Lasing Observed in Nanowires
Building on earlier research that used near-field microscopy to capture lasing action of single ZnO nanowire arrays, scientists at the University of California, Berkeley, now have observed and...
Quantum-Dot Lasers Exhibit High Characteristic Temperature
Researchers at the University of Texas at Austin have developed 1.3-µm InAs quantum-dot GaAs-based lasers whose characteristic temperature and low threshold current density may someday enable them to...
Single Laser Matches Transmission Record
The record for optical data transmission has long since passed a terabit per second, but the feat generally has required the energy of multiple diode lasers. Scientists at the University of Central...
Nanoporous Coatings Exhibit Low Refractive Index
Researchers at Massachusetts Institute of Technology in Cambridge have developed an aqueous-based process to uniformly cover the surface of most materials with an antireflective layer. They say the...
Nd:YAG Replaces Spark Plug in Lean-Burn Engine
Forget about putting a tiger in your tank; to really get your motor running, put a laser under the hood. Research scientists at the US Department of Energy's National Energy Technology Laboratory in...
Array Measures Ice Cloud Scattering
Scattering from nonspherical ice crystals in the upper atmosphere interferes with satellite remote-sensing applications and can play a significant role in climatic changes. Employing a...
Hot Embossing Method Improves Polymer's Light Emission
Incorporating wavelength-scale microstructures such as gratings can improve the properties of lasers and displays made from organic semiconductors. This typically is accomplished by using complex...
Curved CCDs to Scan Earth's Orbit
Curved CCDs could improve the ability of telescopes to monitor and track debris and objects in geosynchronous orbit. A three-site deep-space surveillance constellation operated by the US Air Force...
Lasing Achieved with Doped DNA
Researchers at the Chitose Institute of Science and Technology in Japan have doped DNA strands with a hemicyanine dye to create films capable of lasing. As reported in the Aug. 19 issue of Applied...
DC Sputtering Cuts Deposition Times and Costs
KDF Inc. of Rockleigh, N.J., has developed a DC reactive sputtering process that promises to drastically reduce deposition times for dielectric films. Moreover, because it employs off-the-shelf...
Digital Data-Hiding Pulls a Reverse
The ability to easily modify and manipulate digital imagery has been beneficial to applications in the entertainment and consumer markets. However, this mutability poses problems in military, legal,...
Cold Cathode Supports Flat Panel Displays
Scientists at Tokyo University of Agriculture and Technology have developed a flicker-free solid-state cathode-ray tube that supports large, flat-screen devices. Unlike conventional cathode-ray...
Shaped CO2 Pulses Cleanly Ablate Silica Glass
Although excimer and ultrafast laser technology can machine silica glass, the high average power and material removal rate of CO2 lasers is more practical for machining large surface areas, provided...
Ultrafast Laser Chisels Lens Inside Glass
In the classic magic trick, a magician asks a member of the audience to select a random card from a deck, and then seems to miraculously transport that card into a solid piece of ice or glass....
Optical Trap Builds Microvalves
Microfluidic devices have made chemical and biological analysis faster, more selective and less taxing on the supply of material under study. However, commonly used lithographic manufacturing methods...
light speed
NFOEC 2002 Presents the Good, the Bad and the Ugly
Like the hackneyed joke, the National Fiber Optic Engineers Conference (NFOEC), which took place in Dallas in mid-September, presented some good news and some bad news. On the plus side were signs that 40-Gb/s fiber optics technology and other solutions were ready to roll. On the negative side were indications that the industry continues to face deepening -- and perhaps fundamental...
Industrial Laser Shipments Rise
Shipments and exports of North American industrial laser equipment and systems rebounded in the second quarter, advancing 47 percent over the figure for the first three months of 2002, according to...
Task Force to Revamp Photonics Education
Three organizations have joined forces to develop the second level of photonics standards and curriculum modules. The results of their efforts are scheduled for publication in 2003 as "Science and...
Advanced Photonix Purchases Silicon Sensors
Advanced Photonix Inc. of Camarillo, Calif., a supplier of OEM silicon-based electro-optic products, has acquired privately owned detector manufacturer Silicon Sensors LLC of Dodgeville, Wis., for...
NEMI Works to Improve Fiber Splicing
A little-appreciated economic tenet of any market downturn is that vital resources become available for critical projects that previously sat on the back burner. By redeploying these resources to...
Nanosys Pursues Nanolaser Technology
Nanosys Inc. of Palo Alto, Calif., has signed an exclusive licensing agreement with the regents of the University of California for semiconductor nanowire-based lasers. The license will enable the...
Collaboration Aims to Lower Cost of Fiber Optic Component Assembly
EM4 Photonics of Burlington, Mass., and Newport Corp. of Irvine, Calif., have signed a letter of intent concerning joint development of photonic device manufacturing equipment and processes. As part...
Optics Consulting Service Established
Optics for Hire of Arlington, Mass., and Lviv, Ukraine, has formed an optics consulting firm. The company will market a Ukraine-based engineering team with collaborative experience in designing...
Company to Enhance Systems for Processing Cables
Flexon AG in Horgen, Switzerland, is now part of Schleuniger, based in Thun, Switzerland. The subsidiary, renamed Schleuniger Flexon AG, will develop and produce fully and semiautomatic systems for...
Firms Combine Prototype and OEM Manufacturing Technology
Two New York state companies have formed a partnership to assist customers with the transition from prototype manufacturing with Optimax Systems Inc. of Ontario to OEM production with Photonics...
Boeing LTS Wins High-Energy Laser Research Contract
Under a multiyear, $25.5 million contract from the US Air Force, Boeing LTS of Albuquerque, N.M., will work to advance laser development and vulnerability-effects testing for the Air Force Research...
Lehigh's Center for Optical Technologies Gets Financial Backing
The Pennsylvania Department of Community and Economic Development has awarded Lehigh University in Bethlehem, Pa., $15 million for its Center for Optical Technologies. The center, which also has...
New Focus to Develop Laser for Cesium Atomic Clocks
New Focus Inc. of San Jose, Calif., has agreed to develop laser technology for NASA's Jet Propulsion Laboratory in Pasadena, Calif. Based on the company's 852-nm tunable laser technology, which is...
Media Cybernetics Buys Assets of Definitive Imaging
Image analysis software provider Media Cybernetics Inc. of Silver Spring, Md., has purchased the intellectual property and related assets of Definitive Imaging Ltd., which is a supplier of software...
General Dynamics Unit Wins Army Contract for Telecom Upgrade
General Dynamics Network Systems of Needham, Mass., has received four orders totaling $15.2 million from the US Army, which will expand its telecommunications infrastructure at Fort Leonard Wood,...
Accent on Applications
Camera Captures Spheromak Plasmas
The promise of limitless, cheap and clean energy from thermonuclear fusion has been intriguing scientists for decades, and it is all the more enticing as we come to terms with the environmental hazards and limited supply of hydrocarbons. Researchers at Lawrence Livermore National Laboratory are using the DiCam Pro high-speed intensified CCD camera from Cooke Corp. to image fusion plasmas in an...
Photonics Samples UV-Safe Clothing
Skin cancer has been on the rise in the US, Australia and Europe for the past decade. More than 51,000 new cases are reported to the American Cancer Society each year. Dermatologists have recommended...
Frame Grabber Enables High-Speed Profiling
Photonic component manufacturers depend on the accuracy and speed of optical metrology systems for the cost-efficient production of microelectromechanical system (MEMS) devices, thick films, optics,...
Imaging Technique Hatches Egg-Sorting System
Chickens headed for market fall into three subclasses: broiler birds, egg layers and breeders. Broiler birds, or meat chickens, are drawn entirely from the male population, because they grow faster...
Software Aids Chip Design
According to the current roadmap for the semiconductor industry, by 2003 half of all chips will include transistors with gates smaller than the wavelength of radiation that the stepper used to create...
Presstime Bulletin
UV Produces Transparent Conductor
A transparent electrical conductor has been produced from an insulating oxide by a team at the Tokyo Institute of Technology in Yokohama and the Japan Science and Technology Corp. in Kawasaki. The...
Transparent Organic Cells Emit Blue
European and Canadian researchers reported in the Oct. 21 issue of Applied Physics Letters a new method for the fabrication of light-emitting electrochemical cells for displays. The anode and cathode...
Laser Fabricates Terahertz Waveguides
Massachusetts Institute of Technology researchers in Cambridge have fabricated solid-state platforms in crystalline structures that can generate and propagate terahertz polaritons. They are...
Very Large Telescope Snaps Images of Radio Hot Spots
A research group has imaged hot spots from the radio galaxy 3C 445 using optical and infrared cameras on the Very Large Telescope. The images show knots embedded in a diffuse optical emission that is...
Rewritable Solitons Produced in VCSELs
A team from Institut Non Lineaire de Nice in France, Poltecnico e Università di Bari and Università dell'Insubria, both in Italy, Imedea in Spain and the University of Ulm in Germany has written and...
Proposed 2 X 2 Switch Applies Photonic Crystals
Collaborators at the University of Delaware in Newark and the US Air Force Research Laboratory at Hanscom Air Force Base, Mass., have modeled and analyzed the performance of 2-D directional coupler...
Photonic Fiber Drops Raman Threshold
A group of scientists at Bath University in the UK have reduced the threshold power for stimulated Raman scattering by nearly two orders of magnitude using a photonic crystal fiber. Fabricated by...
Laser Spectroscopy Displays 12-nm Resolution
At Swiss Federal Institute of Technology (ETH) in Zurich, scientists have employed laser spectroscopy and scanning probe microscopy to resolve two molecules 12 nm apart in a crystal host. The...
Independent Photons Coalesce
Quantum mechanics predicts that when two photons emitted simultaneously by parametric down-conversion and sharing identical mode properties meet at opposite sides of a beamsplitter, they will...
Blue-Phase Liquid Crystal Acts as Laser
Researchers at Kent State University in Ohio and Universidad Autonoma Metropolitana in Mexico City reported in the October issue of Nature Materials that they have observed lasing in optically pumped...
Products
INSPECTION STATION
New software from Leica Microsystems AG has extended the capabilities of the company's INS3300 modular inspection and review station for applications such as direct-write lithography and process...
Leica Microsystems AG, Microscopy Div.
PHOTODETECTORS
A new line of hybridized photodetectors from Advanced Photonix Inc. consists of a PIN photodiode and transimpedance amplifier within a hermetically sealed TO-5 package. An external feedback resistor...
Advanced Photonix
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REFLECTANCE MATERIAL
The Op.Di.Ma. optically diffuse reflecting material from Gigahertz-Optik Inc. is a white optical-grade plastic used in a variety of lighting design, laser and reflection/transmission applications. It...
Gigahertz-Optik Inc.
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V-GROOVE ASSEMBLIES
Polarization-maintaining, fiber-pigtailed V-groove assemblies to control polarization-dependent loss and polarization mode dispersion in 40-Gb/s applications, are available from Oz Optics Ltd. The...
OZ Optics Limited
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IMAGING SOFTWARE
Nikon Instruments Inc. announces EclipseNet software for use with its DXM 1200 and DN 100 digital cameras. This software includes an image archiving and database engine that uses standard Microsoft...
Nikon Instruments Inc.
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COLOR LINE-SCAN CAMERA
Basler Vision Components has released the L301kc color line-scan camera, the newest addition to its L300 series. Based on a trilinear progressive-scan CCD sensor with 2098 14 x 14-µm pixels, it has a...
Basler AG
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CCD CAMERA
The noncooled ColorView I camera from Soft Imaging System features a FireWire interface and a 2048 x 1536-pixel CCD chip. It uses the correlated double sampling method to read 3 x 12 bits to produce...
Olympus Soft Imaging Solutions Corp.
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IMAGING BOARDS
Videology Imaging Solutions Inc. has announced the 20D479 NTSC and the 21D479 PAL Panther video camera boards for OEMs. These 42-mm-sq boards have a horizontal and vertical lock and provide 490 TV...
Videology Industrial-Grade Cameras
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Ti:SAPPHIRE OSCILLATOR
The Femtosource scientific XL Ti:sapphire oscillator provides output >30 nJ, pulse duration <20 fs, peak power >1.5 MW, beam diameter <2 mm and beam divergence <2 mrad. The instrument,...
Spectra-Physics Vienna
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MINI POWER SUPPLY
A subminiature high-voltage power supply introduced by HiTek Power is suitable for use in compact, handheld, portable and battery-operated devices, including chemical atomizers, backlight bias...
LHV Power Corp.
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OPTICALLY CLEAR GEL
Fiber Optic Center Inc. has introduced Optical Gel LS-3252, manufactured by Lightspan. The soft encapsulation material protects sensitive photonics and flat panel display assemblies from mechanical...
Fiber Optic Center Inc.
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COLD PLATES
Lytron Inc. designed its High Performance Series vacuum-brazed cold plates for high-watt density applications in the laser, semiconductor and power electronics industries. The standard model CP-30...
Boyd Corp.
SWITCHABLE LASER
A UV/VIS laser with switchable wavelengths of 266, 355 and 532 nm is available from Crystal GmbH. It comprises a diode-pumped, passively Q-switched solid-state microchip laser with different stages...
CRYSTAL GmbH
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DFB FIBER LASER
A narrow-linewidth tunable distributed feedback fiber laser that offers combined thermal and piezoelectric wavelength tuning or stabilization has been released by Koheras A/S. The Adjustik C15 is...
NKT Photonics A/S
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COMPACT LASER MODULE
The YLM-1 laser introduced by IPG Photonics produces 1 W of single-mode power at 1 µm and is available in linearly and randomly polarized versions. The diode-pumped fiber-to-fiber device,...
IPG Photonics Corporation
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CO2 LASER
Coherent Inc. has announced the Gem-30 CO2 laser, which provides more than 30 W of output power at 10.55 to 10.63 µm with a >98% TEM00 spatial mode and M2 <1.2 beam quality. Suitable for...
Coherent Inc.
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SILICON PHOTODIODE
The S7998 silicon photodiode from Hamamatsu Corp. integrates a low-bias-current preamplifier in a ceramic 13.2 x 7.37-mm package. A metal package also is available for specific design requirements....
Hamamatsu Corporation
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UV PENCIL LAMPS
Spectroline UV quartz lamps with a 1/4-in. diameter are available from Spectronics Corp. The 11SC-1 and -2 shortwave pencil lamps deliver an average 254-nm intensity of 4500 and 2000 µW/cm2,...
Spectronics Corp., Spectroline
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LED LIGHT SOURCES
LED light sources designed to replace halogen fiber optic light systems are available from Firstsight Vision. The HLV series provides an alternative method of high-power light delivery to halogen...
Stemmer Imaging Ltd.
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FLUORESCENT ILLUMINATION
The Model 13 Plus Steady-Lite from StockerYale Inc. is a fluorescent illuminator for inspection, imaging, microscopy and medical applications. This lighting system uses an 85-kHz driver to provide...
ProPhotonix Ltd.
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VERTICAL LIFT STAGE
A vertical lift stage for component alignment has been unveiled by Aerotech Inc. The ANT-4V provides speed of 50 mm/s, in-position stability and accuracy of 200 nm. It features noncontact...
Aerotech Inc.
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DESKTOP MICROMETER
Edmund Industrial Optics offers a desktop laser scan micrometer for noncontact measurement at a scanning speed of 226 m/s. Specifications include a measuring range of 0.5 to 60 mm, selectable...
Edmund Optics Inc.
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MACHINABLE CERAMIC
A zirconia-phosphate machinable ceramic for the production of high-temperature heaters, brazing fixtures, induction liners, wafer chucks, optical stands and combustion nozzles for applications to...
Aremco Products Inc.
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48-Gb/s TEST SYSTEM
The ME7780A 48-Gb/s bit error rate test system produced by Anritsu Corp. can support the evaluation of the 40-Gb/s systems and modules that will be used in next-generation networks. The company says...
Anritsu Co.
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STEREOMICROSCOPE
A stereomicroscope for training, education and routine testing, the Stemi DV4 (double lens vario, zoom factor 4) Spot has a continuous zoom system that provides high-resolution images ranging from an...
Carl Zeiss Microscopy LLC
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FLUORESCENCE SOFTWARE
Version 3.1 of PicoQuant GmbH's FluoFit multiexponential fluorescence decay fit software for PCs supports Windows XP and previous 32-bit Windows platforms. The software offers a graphical user...
PicoQuant GmbH
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OPTICAL ANALYSIS SOFTWARE
Luna Technologies' line of optical vector analyzers for component testing now incorporates virtual instrument software designed to increase productivity and enhance data accessibility. The software...
Luna Innovations Inc.
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NIR ANALYSIS
Analytical Spectral Devices Inc. offers a turntable accessory for use with its LabSpec Pro near-IR analyzers. The turntable is designed for the analysis of irregularly shaped or nonhomogeneous...
ASD Inc.
FO SPECTROMETER
The AvaSpec fiber optic spectroscopy platform from Avantes is suitable for applications in the UV-VIS-NIR range. Features include a 14-bit multichannel AD converter, an onboard microprocessor and a...
Avantes BV
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LASER DIODE TESTING
ILX Lightwave Corp. has announced the LTS-9300 life-test/burn-in system for laser diodes. The system supports 14-pin butterfly laser diode packages, and its modular design allows in-the-field...
Newport - ILX Lightwave, Photonics
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