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Photonics Spectra - April 2003
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Issue Library
Features
Scrambling to Reduce Polarization-Related Impairments
Polarization is a fundamental property of light. In classical physics, light is modeled as a sinusoidal electromagnetic wave in which an oscillating electric field and an oscillating magnetic field...
Picking Up the Pace of Rapid Manufacturing
By one estimate, rapid prototyping equipment generates more than 3 million models and prototypes annually. Even with the recent slowdown in the market, this figure will most likely continue to rise....
Infrared Detectors Image the Future
The ability to see beyond the capabilities of normal human vision is vital in areas such as emergency services, defense, science, maintenance and surveillance, and all of these areas stand to gain by...
Getting the Small Picture
Anadigics Inc. of Warren, N.J., is a semiconductor company that helps provide the gift of gab -- and data, too. Its gallium-arsenide integrated circuits are used in both wired and wireless...
Minimizing Error and Maximizing Precision in Microassembly
Precision assembly solutions are as unique as the products they are built to automate, especially in the photonics world. Progressive assembly operations such as guiding, gluing and bonding sometimes...
Quartz Crystal Thin-Film Monitoring Forges Ahead
Research in fields such as nanotechnology, biosensors, thin-film displays and high-speed optical communications has increased the complexity of thin-film structures. Although an antireflection...
Illumination Design Gets Faster, Easier
From cell phones to automotive dashboards, illuminated displays have become commonplace. Historically, they were designed with rudimentary software tools, and, consequently, many prototype iterations...
Illumination Design Gets Faster, Easier
From cell phones to automotive dashboards, illuminated displays have become commonplace. Historically, they were designed with rudimentary software tools, and, consequently, many prototype iterations...
Tech Pulse
Molecular Self-Assembly Yields Giant Lattice
A group of researchers at the University of Pennsylvania in Philadelphia and the University of Sheffield in the UK has fabricated a liquid crystal lattice that is one of the most complex structures ever produced through molecular self-assembly. The work contributes to the design of increasingly complex nanostructures for a wide range of applications. Molecular self-assembly techniques take...
3-D Crystals Produced by Microassembly
Employing techniques that were developed for manufacturing integrated circuits, researchers in Japan have constructed three-dimensional photonic crystals from layers of patterned semiconductor...
Gratings Offer New Breed of Tunable Laser
Researchers worldwide are pursuing several approaches to building tunable lasers that will enable future telecom systems to be quickly reconfigured for maximum transmission efficiency. Some...
UV-Induced Cross-Linking Yields Organic LEDs
Scientists from Universität München and Technische Universität München in Munich, and Covion Organic Semiconductors GmbH in Frankfurt, all in Germany, have devised a technique for the production of...
Soft Lithography Enables Gray-Scale Process
As might be expected of the workhorse of digital circuit production, traditional photolithography is an either-or process. A line is formed where the exposing radiation shines through the mask, or...
Wafer Processing Yields High Q Microcavities
Microcavities require atomically smooth surfaces to obtain ultrahigh Q factors, but until recently such surfaces have been demonstrated only in structures such as droplets or microspheres....
Force Networks Examined with Photoelastic Imaging
How fast granular materials flow is related to how elastic energy in the materials is stored and released. Researchers at Duke University in Durham, N.C., have used a polariscope, a light source and...
Freon Improves Laser-Ablation Spectrometry
To reduce the incidence of elemental fractionation and improve the accuracy of laser ablation induction-coupled plasma mass spectrometry for the isotopic analysis of geological samples, Takafumi...
Root-Side Monitoring Controls Welding
Researchers at Technical University of Denmark in Lyngby have demonstrated a closed-loop control system for laser welding that maintains even seam widths for materials at variable welding speeds. The...
Fiber Sensors Probe Engine
As carmakers try to reduce the harmful emissions from gasoline-powered engines, efforts focus on controlling engine performance using data from sensors. A team from Texas A&M University in...
All-Optical Frequency Shifter Demonstrated
As the demand for speed and bandwidth in communications networks increases, new approaches to switching and routing are under study. Now researchers at the University of Illinois at Urbana-Champaign...
Near-Field Raman Offers 25-nm Resolution
Researchers at the University of Rochester in New York, Portland State University in Oregon and Harvard University in Cambridge, Mass., have reported a spatial resolution of 25 nm in their study of...
RGB Interferometer Measures Diffractive Optical Elements
While white-light interferometry may be a standard tool for measurement of discontinuous profiles, it requires significant data collection and evaluation. Researchers at the University of...
Heat Treatment Produces Fiber for Sensors
In pursuit of a more economical fiber for evanescent field sensors, researchers in Australia have determined that annealing standard commercial telecommunication fiber yields a suitable...
Raman Spectroscopy Probes Silicones
To better understand the properties of the ubiquitous silicone polymers, scientists from the University of East Anglia in Norwich, UK, Dow Corning in Seneffe, Belgium, and Rutherford Appleton...
light speed
Industrial Laser Shipments Down 15 Percent
Statistically speaking, it looks like the industrial laser market is continuing a downward slide. According to the Laser Systems Product Group of the Association for Manufacturing Technology (AMT) in...
Companies Look for Fresh Investment Dollars
Because venture capital has diminished in the past year, many companies are looking for fresh investment dollars that aren't tied to the performance of the stock market. Military contracts, in this...
Firm Wins Contract for Gain Array Technology
NP Photonics will advance its multimode-pumped, monolithic gain array under a two-year, $750,000 Phase II Small Business Innovation Research contract from the Missile Defense Agency. The compact...
Elliot Scientific Obtains Intellectual Property
Elliot Scientific Ltd. of Harpenden, UK, has purchased all of the issued share capital of Martock Design Ltd. of Martock, UK. For several years, Elliot has been a distributor for the acquired company...
Companies Ally to Standardize Tunable Laser Components
Intel Corp. of Santa Clara, iolon Inc. of San Jose and Santur Corp. of Fremont, all in California, and Bookham Technology of Abington, UK, have established a multisource agreement for tunable lasers...
Welsh University Wins Award for Optical Biochip Research
The UK's Engineering and Physical Sciences Research Council has awarded $3 million to the University of Wales College of Medicine in Cardiff for the development of optical biochips. The project will...
Accent on Applications
Diode Laser Improves Canister Welding
A laser-assisted welding technique is helping manufacturers construct the next generation of weapons for the US military. By reducing the thermal distortion that traditional welding approaches induce in the workpiece, the process is reducing manufacturing times and welding wire consumption in the production of missile canisters. A laser-assisted welding technique is enabling manufacturers to...
Optical Storage Goes 3-D
Thanks to the spot size of the blue diode laser and the recent advances in spatial light modulators, holographic data storage is finally practical. However, the ability to write and read such...
Laser System to Map Ozone Depletion
Ten years ago, NASA expressed an interest in a laser operating at approximately 120 µm for an orbital mission to map the upper atmosphere. This began an effort that has led to the development of a...
Spectrometer Looks for Cancer
Breast cancer is the second leading cause of death among women, with 700,000 new cases diagnosed every year. X-ray mammography remains the most important means of diagnosing the disease, but its...
Optical Fibers Test DNA
Detecting very small quantities of chemical or biological material for security and defense applications is fraught with problems, including the generation of false-positives and -negatives as a...
Presstime Bulletin
Nanoclusters Form Logic Gates
Tae-Hee Lee and Robert M. Dickson of Georgia Institute of Technology in Atlanta have produced AND, OR, NOT and XOR logic gates using electroluminescent silver nanoparticles. Reported in the March 18 issue of PNAS, the optoelectronic devices promise to open the door for the development of molecular-scale electronics, including computers. Lee and Dickson exposed thin films of silver to a...
Ultrafast Laser Creates Spin-Entangled Electrons
A research team at the University of Michigan in Ann Arbor and the University of Notre Dame in Indiana has reported the entanglement of three electrons in a CdTe quantum well using ultrafast laser...
Facial Recognition Study Released
The National Institute of Standards and Technology, the Defense Advanced Research Projects Agency and the US Department of Defense's Counterdrug Technology Development Program Office have released...
Cassini Images of Jupiter Studied
En route to Saturn, the Cassini spacecraft, a joint mission of NASA, the European Space Agencyand the Agenzia Spaziale Italiana, took advantage of its Jupiter flyby to test its two-camera Imaging...
Optical Fractionation Presented
Researchers from the University of Chicago presented their findings on the use of light to continuously sort microscopic particles at the March meeting of the American Physical Society in Austin,...
Products
SPECTRORADIOMETER
Analytical Spectral Devices Inc. has added the FieldSpec Pro Hi-Res to its line of spectroradiometers. It offers spectral resolution of 6 nm in the 1000- to 2500-nm range and can collect a full spectrum scan in 50 ms. The portable device is operated by RS3 data acquisition and analysis software for remote sensing and is suitable for applications that require a halogen light source, such as...
ASD Inc.
ADD/DROP MULTIPLEXING
The HeptoPort line of 2-D self-alignment devices from Valdor Fiber Optics Inc. features a proprietary Impact Mount technology that enables one optical element to be shared by up to three add/drop...
Valdor Fiber Optics Inc.
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DEPOLARIZERS
Phoenix Photonics Ltd. offers depolarizers for polarization-dependent gain reduction in Raman amplifiers. The devices are designed to provide <5% degree of polarization with low insertion loss...
Phoenix Photonics Ltd.
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1550-nm CCD CAMERA
The SP-1550M CCD camera from Spiricon incorporates a fluorescent phosphor that increases response and sensitivity of low-level telecom signals in the near-IR wavelength range between 1460 and 1625...
MKS Ophir, Light & Measurement
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IMAGING SOFTWARE
Matrox Imaging has launched a software development toolkit for machine vision, medical imaging and image analysis. The Matrox Imaging Library 7.5 offers a set of options for image capture,...
Matrox Imaging
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OPTICAL LAPPING PITCH
Meller Optics Inc. has announced a line of optical lapping pitch made from wood resin rather than from petroleum by-products. The pitches provide a fine finish and prevent contamination of the...
Meller Optics Inc.
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LASER DIODE CONTROL
ILX Lightwave Corp. offers the 42-W LDC-3926339 laser diode current source module for use with its LDC-3926 16-channel high-power controller. The module is designed for the development and production...
Newport - ILX Lightwave, Photonics
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527-nm LASERS
Three models of high-repetition-rate lasers that operate at 527 nm for particle image velocimetry applications are available from Photonics Industries International Inc. The DM10-527 and DM30-527...
Photonics Industries International Inc.
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DIODE LASER ARRAY
The LightStack diode laser array from Coherent Inc. provides nearly a kilowatt of CW laser power for direct-diode materials processing and high-power laser-pumping applications. The 2-D configurable...
Coherent Inc.
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LASER MEASUREMENT
The Model 10K-W thermopile surface absorber head from Ophir Optronics Inc. measures YAG and CO2 lasers at up to 10,000 W without damage or changes in calibration. The water-cooled device has a damage...
MKS Ophir, Light & Measurement
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TUNABLE LASER
Santec Corp. has introduced the TSL-210F tunable laser, which covers the O- to the U-bands. It emits light at a certain wavelength between 1260 and 1630 nm (370-nm range) with >3-mW optical power...
Santec USA Corp.
LASER MIRROR
The MaxMirror laser mirror from Semrock Inc. offers reflectivity >99% for all polarizations over the wavelength range of 350 to 1100 nm, for 0° and 45° angles of incidence. This...
IDEX Health & Science - Semrock Optical Filters
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BALL/DRUM LENSES
Tech Spec ball lenses with a high index of refraction are available from Edmund Industrial Optics. The lenses can be used to improve coupling between fibers, emitters and detectors and for endoscopy,...
Edmund Optics Inc.
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HIGH-RESOLUTION LENSES
The DVL3 series C-mount lenses from Audio Video Supply provide high resolution for the entire field of view, a rigid mechanical assembly and minimum distortion. They come with single- or...
Audio Video Supply Inc.
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UV-NIR ANALYSIS
The HR2000CG-UV-NIR spectrometer from Ocean Optics Inc. features a proprietary grating and an order-sorting filter for broad-range, high-resolution absorbance, reflectance, transmission and...
Ocean Optics - Part of Ocean Insight
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DATA ACQUISITION SYSTEM
Pulse Instruments' PI-3105 A/D data acquisition system is designed for testing analog imaging devices with multiple outputs. The system features programmable gain, global offset control, and strobe...
Pulse Instruments Co.
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SPECTROMETER DIGITIZER
StellarNet Inc. says the LT14 Little Turbo digitizer, which has been added to its EPP2000 miniature fiber optic spectrometers, improves spectral digitization speeds and dynamic range by four times....
StellarNet Inc.
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DATA ACQUISITION
PicoQuant GmbH has announced version 5.0 of its data acquisition software package for use with the TimeHarp 200 time-correlated single-photon-counting board. The software supports fluorescence...
PicoQuant GmbH
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MICROSCOPY SYSTEMS
The modular design of the ProScan series automated microscopy systems from Prior Scientific Instruments Ltd. makes them suitable for use with a variety of microscopes. The stage, focus, filter wheel...
Prior Scientific Instruments Ltd.
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OPTICAL POWER METERS
Five optical power meters have been added to Newport Corp.'s product line. The 1930IS fiber optic model has a large dynamic range and high sensitivity. Its built-in integrating sphere combines with...
MKS/Newport
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TEST & ANALYSIS
The Simulation Interface Toolkit announced by National Instruments links LabView graphical development software with MathWorks' Simulink modeling and simulation environment. It establishes a...
National Instruments Corp.
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Custom Optics and Assemblies Production
Corning Diamond Turning Div. (formerly OFC Diamond Turning) is a major supplier of high-precision custom optical components, optical subsystems and subassemblies for defense and commercial...
Corning Specialty Materials, Aerospace and Defense
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TECH SPEC Lateral Displacement Beamsplitters
Edmund Industrial Optics' new line of TECH SPEC lateral displacement beamsplitters is exclusively designed, manufactured and coated by Edmund Optics. These unique beamsplitters output two parallel...
Edmund Optics Inc.
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OmniLED
Labsphere's new OmniLED LMS system for LED measurement enables users to measure LEDs farther upstream in the production process and provides greater accuracy in the lab. The OmniLED LMS system was...
Labsphere Inc.
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Wave Plates, Beamsplitters and Polarizing Optics
Lambda Research Optics is the one-stop provider for all of your beamsplitter and wave plate needs. With products covering from the UV to the near-IR (248 to ~2940 nm), we offer polarizing and...
Lambda Research Corp.
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Simply Better Photonic and Microwave Solutions
For more than 10 years, New Focus has been a leader in creating simply better photonic tools and solutions for commercial and research applications. Now in our second decade, we continue to actively...
Newport - New Focus
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Optical Design Software
CODE V is a comprehensive software package for the design, analysis and fabrication support of optical systems. CODE V provides powerful optimization and tolerancing capabilities and is recognized...
Synopsys Inc., Optical Solutions Group
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Precision Optics and Coatings
PG&O provides precision optical components and a complete line of optical coatings for military/aerospace, medical and industrial applications. In-house fabrication and coating facilities include...
Precision Glass & Optics (PG&O)
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World Leader -- Optical Components
Digital imaging is not the future, it's the present. If you're not using digital imaging in your optical systems, you could be wasting money. It's as simple as that. You owe it to yourself and your...
Ross Optical Industries
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CleanTop II DoubleDensity Optical Tops
Technical Manufacturing Corp. (TMC) offers the highest honeycomb core density and smallest cell area in the industry with the new DoubleDensity tapped-hole array on its patented CleanTop II optical...
TMC
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ZEMAX Optical Design Program
The ZEMAX optical design program integrates all the tools necessary for conceptualizing, designing, optimizing, analyzing, tolerancing and documenting sequential and nonsequential optical...
Zemax, Optical Product Design Software
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