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Photonics Spectra - April 2004
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Issue Library
Features
Laser Beam Characterization of a Diode Stack
The characterization of diode lasers becomes more and more important with the increasing number of industrial applications that depend on this type of laser. ISO 11146 provides the measurement...
CCDs Aid Exploration
Whether imaging the galaxy or intracellular activity, cameras based on CCD sensors continue to capture ever more complex images of the known universe. Still images that are generated with full-frame...
CCD Cameras Tune in to Scientific Imaging
Since their first appearance some 30 years ago, CCDs have been embraced by the scientific imaging and spectroscopy communities for their extraordinary ability to quantify light. Over the years, their...
Image Intensifiers Multiply Photons
Originally developed to enhance night vision in military applications, image intensifiers combined with improved CCD imaging sensors emerged as serious contenders for low-light scientific imaging...
CCDs Capture Dynamic Motion
Whether the application involves high-speed machine vision, live-cell imaging or surveillance, dynamic motion capture is a key task of the CCD image sensor. The need to capture an image fast and...
Vacuum Sealing Adds Life to Scientific CCDs
Perhaps a key question for any scientific imaging application is how long the CCD camera will last before the chip underperforms. One major “camera killer” is condensation on the chip. Most cameras...
Interline CCDs Serve Machine Vision Applications
Many industrial manufacturers use machine vision systems to control the quality of their products. Such systems can measure the product’s size, position and color, the location of key components or...
Diamond Turning Enters a New Era
Single-point, diamond-turned optics, if programmed and fixtured properly, can typically be produced right off the machine at λ/4 peak to valley, with surface finish as low as 50 Å rms in bare...
Strengthening Global Surveillance and Security
Patrolling national borders, detecting explosives and weapons in luggage and cargo and scanning battlefields for toxins are different tasks, yet they all have something in common. They are undertaken...
Spectroscopy Takes Security into the Field
With important advances in the miniaturization, cost and performance of optoelectronic devices and sampling accessories, techniques such as fluorescence spectroscopy and laser-induced breakdown...
Fluorescence Microscopy Becomes Portable
A centimeter-wide “lab-on-a-chip” has been developed by engineers at the University of California, Berkeley, using a new laser-processing technique. The chip, which contains optical elements for...
Long-Range Surveillance Day or Night
Law enforcement and security professionals who safeguard borders, ports, nuclear power and chemical plants, and other high-value/high-danger assets deploy thermal imaging cameras as a critical...
Imaging Systems Gain a Brain
The use of video surveillance as a security tool historically has been plagued by multiple limitations, including cross-platform incompatibility, inadequate nighttime operability, and the human...
High-Speed Optical Sensor for Security Applications
In today’s world, with its increasing demand for security, passive optical sensors are helping to keep us safe. They typically are used in video cameras that generate a two-dimensional image on a...
X-ray System Provides Improved Baggage Screening
Ensuring the safety of airline passengers has created a demand for larger, more robust security devices at baggage check-in sites. Previous x-ray systems could scan baggage but could neither detect...
Testing the Water
Shortly after Sept. 11, an incident arose in which a water reservoir had been tampered with. The severity and seriousness of the act resulted in speculations of terrorist activity. The reservoir...
3-D Multispectral Imaging Cameras Go Airborne
Attaching a camera to the end of a missile to help guide the missile to a target might sound a little like science fiction. However, researchers at Utah State University and Lidar Pacific Corp,, both...
Outsourcing: A Growing Trend for Optomechanical Assemblies
One area of the optics industry that continues to experience growth is that of precision optomechanical assemblies. This trend runs in parallel with increased reliance on more sophisticated...
Near-Field Holography Manufactures Submicron Gratings
Gratings with a 200- to 600-nm pitch are necessary for telecommunications devices such as passive optical components and InP laser diodes. They also are required in some emerging applications,...
Closed-Loop Control Boosts AFM Functionality
Many atomic force microscopes (AFMs) and scanning probe instruments that provide usable images do not have closed-loop position control, which is essential for accurate, distortion-free visualization...
Tech Pulse
Tiny Measurements Present Big Challenges
In semiconductor manufacturing, photonics is used not only for imaging circuit layers, but also for measuring the size and location of patterned features. The question is, will photonic techniques be...
Mirror Enhances Diode Laser Bar's Beam
The diode laser bar, which consists of multiple diode lasers on a single substrate, is the workhorse of semiconductor lasers. Commercial units with outputs of 100 W and higher are on the market, and...
Spectroscopy Detects, Counts Toxic Molecules
A team at the National Institute of Standards and Technology in Gaithersburg, Md., Eindhoven University of Technology in the Netherlands and the University of Maryland in College Park has...
Fiber Laser Produces 2.5 W in the 3-µm Region
Lasers that operate in the 3-µm region of the mid-infrared have many applications in remote sensing, spectroscopy, medicine and military countermeasures, and fiber lasers seem likely candidates to...
InGaN Laser Diodes Are Grown by Molecular Beam Epitaxy
Researchers at Sharp Laboratories of Europe Ltd. in Oxford, UK, have reported the successful fabrication of blue-violet InGaN laser diodes using molecular beam epitaxy. Currently, these emitters are...
Tunable Distributed Bragg Reflector Lasers Introduced at OFC
Two vendors introduced similar, widely tunable, monolithic lasers at the Optical Fiber Conference (OFC) held in Los Angeles from Feb. 23 to 27, and the companies' scientists presented papers...
light speed
OFC Attendance Climbing, but Still Has a Long Way to Go
Before the telecom market slump, the Optical Fiber Conference (OFC) was probably the hottest, fastest-growing photonics conference in the world. At its peak year, 2001, the conference hosted 37,806 attendees. It was greatly diminished, however, when telecom business fell off dramatically in 2001 and '02. Recently, the event has reclaimed at least a part of its former greatness. Attendance at...
PI Establishes US Company
To focus on its North American nanopositioning customers, PI (Physik Instrumente) GmbH & Co. KG, based in Karlsruhe/Palmbach, Germany, has formed PI (Physik Instrumente) LP in the US. The...
Dow and Osram to Develop Polymeric LED Display Technology
Dow Chemical Co. of Midland, Mich., has signed an agreement with Osram Opto Semiconductors GmbH of Regensburg, Germany, to supply commercial quantities of Lumation light-emitting polymers for use in...
Agiltron Licenses MEMS Attenuator Technology
Fiber optic components manufacturer Agiltron Inc. of Wilmington, Mass., has entered into a licensing agreement with Oluma Inc. of Carlsbad, Calif., for a variable optical attenuator based on...
Forum Suggests Lithography Driven to Drink
The water's fine. That consensus emerged from a meeting held in Los Angeles in January that was attended by more than 350 representatives from 120 companies in the semiconductor lithography industry....
Digilab to Distribute Near-IR Spectrometers
Digilab LLC of Randolph, Mass., and Infrared Fiber Systems Inc. of Silver Spring, Md., have formed a long-term distribution agreement for a portable near-IR acousto-optic tunable filter spectrometer...
CorActive Wins Patent License for Production of Mid-IR Fiber
Under an exclusive patent license agreement, CorActive High Tech Inc. of Quebec City will commercially manufacture and further develop the US Naval Research Laboratory's mid-IR transmission fiber....
DiOP to Manufacture Surveillance Systems for US Air Force
Diversified Optical Products Inc. (DiOP) of Salem, N.H., has received a $2.78 million contract from the US Air Force Electronic Systems Command for the production, delivery and installation of...
Goodrich to Provide Laser Altimeters for Combat Air Systems
Chicago-based Boeing has selected Goodrich Corp. of Charlotte, N.C., to supply laser altimeters for the X-45 Joint-Unmanned Combat Air Systems. Incorporating an eye-safe laser, the devices provide...
Alliance Formed to Propel Australian Photonics Research
Swinburne University of Technology TAFE Centre for New Manufacturing in Hawthorn, Australia, will partner with Melles Griot of Ely, UK, to advance Australian photonics research. With the help of its...
Heraeus Noblelight Purchases Light Sources Company in UK
Precious metals and technology company Heraeus Noblelight GmbH, based in Hanau, Germany, has acquired specialty light sources maker Cathodeon Ltd. through its subsidiary, Heraeus Noblelight Ltd.,...
NuSil Technology Acquires Lightspan
Silicone compound manufacturer NuSil Technology of Carpinteria, Calif., has obtained Lightspan LLC of Wareham, Mass., a specialist in the design of fluids, gels, coatings, thermosets and...
UK Company Gains Funding to Develop 3-D Imaging System
In Glasgow, UK, Iris-3D Ltd., a 3-D imaging systems spin-out of the University of Strathclyde, has won a start-up award from the Synergy Fund, according to an announcement from Scottish Equity...
Companies Partner to Provide Ethernet Connectivity Products
Under a collaborative agreement to provide Gigabit Ethernet connectivity products for industrial vision markets, Pleora Technologies of Kanata, Ontario, Canada, will furnish Basler AG of Ahrensburg,...
Kopin to Supply Displays for Night-Vision Binoculars
Kopin Corp. of Taunton, Mass., has received an order to supply Flir Systems AB of Danderyd, Sweden, with VGA-resolution CyberDisplay 640M modules that will display IR images in night-vision...
Accent on Applications
Light Sheets and Cameras Track Fluid Flow
At Dantec Dynamics A/S in Skovlunde, Denmark, they like to go with the flow -- and to help others to do likewise. The company and its subsidiary, Dantec Dynamics Inc. of Mahwah, N.J., specialize in...
Computer-Controlled Machine Sees No Need for Vision
With apologies to Shakespeare, Phoenix-based TLC International was recently faced with a question: To see, or not to see? Among other things, the company makes high-accuracy mechanical glass cutters...
Presstime Bulletin
Attosecond Method Captures Electron Movements
A group of scientists at Technische Universität Wien in Austria, Universität Bielefeld in Germany and Max Planck Institut für Quantenoptik in Garching, Germany, has used ultrashort pulses of soft...
Ion-Photon Entanglement Demonstrated
Researchers at the University of Michigan in Ann Arbor, have demonstrated quantum entanglement between a single trapped cadmium ion and a photon emitted by the ion. The work, which was published in...
Quantum Dots Emit Single Photons at High Temps
In the Feb. 23 issue of Applied Physics Letters, Richard P. Mirin of the National Institute of Standards and Technology in Boulder, Colo., presents the findings of his recent investigation into...
Cavity-Cooling Technique Cools Single Atoms
At Max Planck Institut für Quantenoptik in Garching, Germany, researchers have developed an optical means of cooling single atoms that is at least five times faster than current techniques. Moreover,...
Products
AREA-SCAN CAMERA
Suitable for high-fidelity applications such as automated x-ray inspection, medical imaging, vascular and minimally invasive surgery, and nondestructive testing, Dalsa Corp.'s Pantera TF 1M60 is a 12-bit, 1024 × 1024-pixel area-scan camera that operates at up to 60 fps with >66-dB dynamic range, without the need for cooling. The camera is based on the company's TrueFrame CCD image sensor...
Teledyne DALSA, Machine Vision OEM Components
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IMMERSION MICRO-OBJECTIVE
Corning Tropel has introduced its AquaCat immersion micro-objective for next-generation semiconductor manufacturing. The lens assembly enables reduced linewidths and extends the capabilities of...
Corning Tropel Corp.
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SPECTROMETRY SYSTEM
Ocean Optics Inc. has released the LIBS2000+, a laser-induced breakdown spectrometry system that provides full spectral analysis from 200 to 980 nm at 0.1-nm resolution FWHM with a single laser...
Ocean Optics - Part of Ocean Insight
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SMART CAMERAS
Matrox Imaging's Iris P series programmable smart cameras combine the sensor, processing and software technologies in one package. Designed for professional developers and OEMs, they can be...
Matrox Imaging
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POLARIMETER
The AxoScan polarimeter from Axometrics Inc. measures retarders, wave plates, polarizers, depolarizers, beamsplitters, fiber optic devices, LCD components, optical assemblies and scattering samples....
Axometrics Inc.
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LED RINGLIGHT
Schott North America Inc. has introduced the LCR-100, a compact white-LED ringlight for microscopy applications. Features include low- and high-intensity settings, a thumbscrew mounting system for...
SCHOTT North America Inc.
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NOTCH FILTERS
A line of deep optical thin-film notch filters for use with standard laser lines has been unveiled by Semrock Inc. for Raman spectroscopy, fluorescence and analytical instrumentation applications....
IDEX Health & Science - Semrock Optical Filters
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FIBER OPTIC CLEANER
Available from the Noyes Div. of AFL Telecommunications, Micro Care Corp.'s cleaning solvent for fiber optic connectors comes in a pump-spray canister and, the company says, is nonflammable,...
AFL
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LASER-GRADE WINDOWS
For diffraction-limited laser-based microscopy, intracavity laser applications, holography and multiphoton imaging, Newport Corp. has unveiled a line of low-distortion, low-scatter laser-grade...
MKS/Newport
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STEREO CAMERA
The Theia integrated camera system produced by SeeGrid Corp. is a 1/2-in. full-frame CMOS imager that provides precisely synchronized stereo image capture. Available in black-and-white and color...
Seegrid Corp.
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IR FILTERS
Sunex Inc. has introduced IR-cutoff filters for use with CCD/CMOS color sensors to produce true color images. The precision-polished windows have a dielectric coating to block the transmission of IR...
Sunex Inc.
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DISPLAY MEASUREMENT
Optronic Laboratories Inc. has introduced a portable and lightweight display measurement system that performs more than 25 spectral scans per second. The OL 770-DMS includes the OL 770 high-speed...
Optronic Laboratories LLC
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PHOTODIODE
Three Five (III-V) Compounds Inc. is offering a true surface-mountable packaged photodiode with dimensions of 5 × 4 × 1.1 mm. It can accept a PIN photodiode chip with an active area up to 10 mm2. It...
Three Five Materials Inc.
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IR CAMERA
Applications for the Elvir, an uncooled 320 × 240-pixel infrared camera manufactured by Thales Angenieux, include surveillance, medical imaging, predictive maintenance, high-voltage line inspection,...
Thales Angenieux SAS
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SHUTTER
The Uniblitz CS25 shutter from Vincent Associates provides accurate, repeatable exposures for medical imaging, CCD and video cameras, and low-level laser switching applications. It has a 25-mm...
Vincent Associates
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DIODE LASER
The SPL LG81 is a high-power diode laser array unveiled by Osram Opto Semiconductors GmbH for industrial, military and medical applications. It is sealed in an OEM package with fast-axis collimation...
Osram Opto Semiconductors GmbH
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INTERFEROMETER
QED Technologies introduces a subaperture stitching interferometer that, it says, increases the utility of a standard Fizeau interferometer by more than five times. SSI, a six-axis...
QED Technologies Inc.
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OPTICAL SWITCHES
Continuum Photonics Inc. has announced its DirectLight IG series optical switches for testing and automation. The instrument-grade, scalable, nonblocking devices are transparent to protocol and line...
Amplitude Laser Inc.
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VGA CAMERA
Toshiba America Electronic Components Inc. has expanded its family of CMOS image sensor camera modules with the introduction of the TCM8230MD video graphics array camera. It incorporates a double...
CANON MEDICAL COMPONENTS U.S.A., Video Sensing Devices
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OPTICAL POLISHING
Edmund Industrial Optics is offering magnetorheological finishing at its corporate headquarters. The technology uses an abrasive fluid whose shape and stiffness can be controlled in real time by an...
Edmund Optics Inc.
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BEAM CIRCULARIZATION
LightPath Technologies Inc. has unveiled an optical product that is mounted externally to circularize elliptical red and blue diode laser beams. The small-form-factor CircuLight is designed for the...
LightPath Technologies Inc.
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Ti:SAPPHIRE LASER
FemtoLasers Produktions GmbH has launched the Integral-Pro, a hands-off, compact, ultrafast Ti:sapphire laser that delivers pulse durations of <12 fs, with more than 75-nm bandwidth FWHM centered...
Spectra-Physics Vienna
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DISPENSING SYSTEM
EFD has announced the Ultra TT Automation series X-Y-Z dispensing systems, which combine precision dispensing and accurate positioning functions into one fully integrated tabletop unit. The company...
Nordson EFD
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SINGLE-MODE FIBER
The SM1500 (4.2/50) introduced by Fibercore Ltd. is a highly bend-insensitive ultralow-profile single-mode fiber for use in fiber optic hydrophones to provide security for harbors, naval bases, oil...
Fibercore
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AQUAMARINE LASER
The LDH series picosecond pulsed diode laser heads from PicoQuant GmbH has been expanded to include the LDH 470, a 470-nm aquamarine version that produces pulse durations as short as 70 ps FWHM at...
PicoQuant GmbH
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SUPERLUMINESCENT LEDs
Available from Exalos AG is a family of superluminescent LEDs for use in applications such as telecommunications, optical coherence tomography, medical imaging, test equipment, structural sensors and...
Exalos AG
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FIBER ARRAYS
Arrayed Fiberoptics Corp.'s epoxy-free fiber arrays incorporate a patent-pending integrated epoxy-blocking structure that can be configured in linear arrays up to 1 × 64 channels, and 2-D arrays,...
Arrayed Fiberoptics Corp.
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FLUORESCENCE IMAGING
Stanford Photonics Inc. has expanded its XR/Mega-10 series megapixel intensified CCD cameras for photon-limited fluorescence imaging. The Extended Blue Gen III offers a broad spectral response...
Stanford Photonics Inc.
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MULTICHANNEL DETECTION
The Excipro-D multichannel detection system launched by Del Mar Ventures is suitable for femtosecond and picosecond pump-probe absorption spectroscopy for measuring changes in optical density. It...
Del Mar Photonics Inc.
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COMPONENT TESTING
Luna Technologies has enhanced its optical vector analyzer platform with the introduction of an external laser version, the OVA-EL, for optical component and subassembly testing applications. The...
Luna Innovations Inc.
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LASER DIODE MODULES
A line of temperature-stabilized laser diode modules for display, fluorescence, high-resolution printing, industrial inspection, interferometry, machine vision, medical procedures, metrology,...
Frankfurt Laser Company
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PHOTODETECTORS
Alphalas GmbH has extended its UPD series ultrafast photodetectors to cover the spectral range from 190 to 1800 nm. They can be powered by a battery or an external power supply and are suitable for...
ALPHALAS GmbH
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STABILIZED LASER
Alfalight Inc. has demonstrated an integrated wavelength-stabilized multimode laser based on patent-pending technology. With a 976-nm, 1.6-W fiber-coupled diode laser, more than 95% of the power is...
Alfalight Inc.
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