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Materials, Coatings News
Sandia Researchers Take Cue from Seashell Design
Sep 1, 1998 — Rarely do scientists mention seashells and optical coatings in the same sentence. That may soon change now that researchers at the US Department of Energy's Sandia National Laboratories and the University of New Mexico in Albuquerque have disclosed a means of self-assembling diverse materials into coatings that mimic seashell structures. The unique process permits the formation of transparent coatings suitable for use in optical lenses. Besides being transparent, these coatings also proved...
Silver Coating Maintains Reflectance
Sep 1, 1998 — Although the reflectors behind the xenon flashlamps that pump the Nd:glass amplifiers in the National Ignition Facility's 192 laser beams might seem at most a secondary concern, their reliability is important. Lawrence Livermore National...
Coating Method Makes Molecule-Thick Layers
Jun 1, 1998 — A method for dip coating a substrate with organic polymers may increase the efficiency of light-emitting diodes (LEDs) and computer displays while reducing costs and environmental hazards. The technique, being explored by a group of MIT researchers,...
Laser Texturing Slashes Cylinder Wear
Jun 1, 1998 — Laser texturing of engine cylinder walls may reduce oil consumption by 40 percent compared with traditional cylinder machining techniques, according to a manufacturer of engine honing equipment. Machine honing of engine cylinder walls gives them...
Spectra-Physics Wins $2.4 Million Contract for Optical Coatings
Jun 1, 1998 — Spectra-Physics has received a $2.4 million contract to develop optical coatings for the National Ignition Facility. The facility's laser system will require 8000 large optical components and 30,000 smaller ones. Spectra-Physics will manufacture the...
Corning Terminates Supply Agreement with SpecTran
May 1, 1998 — SpecTran Corp. of Sturbridge, Mass., a developer of glass optical fibers, has announced the termination of a supply agreement it had with Corning Inc. in Corning, N.Y. In a deal forged in January 1996, Corning agreed to purchase multimode optical...
Names in the News
May 1, 1998 — BrainTech Inc. received a contract to build and install a print-quality inspection system to improve and standardize the ink jet printer assembly process for Epson Portland Inc. Epson has the option to buy an additional 11 units to automate its...
Software Eliminates Guess-Work from Coating Designs
May 1, 1998 — The possibility of having true global optimization for a large number of variables such as in multi-layer thin film design, has been debated for decades. A true global optimization algorithm works for a variety of different applications to find the...
Water Aids Laser Materials Processing
Apr 1, 1998 — According to an ancient Roman saying, single drops of water can penetrate rocks. Inspired by this wisdom, a group of Swiss researchers at the Polytechnic Institute of Lausanne has discovered that a clever combination of hydrodynamics and laser...
Cantilever Thermal Detector to Challenge Microbolometer
Mar 1, 1998 — Researchers at Oak Ridge National Laboratory have developed an uncooled thermal infrared detector that they hope will cut the costs of IR cameras by one-third. Researchers Panos Datskos and Slobodan Rajic have developed a microcantilever,...
Scientists Bubble with Excitement
Mar 1, 1998 — If you've ever looked deep into a glass of champagne or beer you've probably noticed the strings of bubbles floating around in the liquid and have swallowed them without any great harm. But would you keep drinking if you knew that bubbles can start...
Three-Laser Method Goes Beyond Diamond Films
Mar 1, 1998 — Three years after unveiling an advanced method for depositing diamond thin coats, QQC Inc. has disclosed that it used the same three overlapping pulsed lasers to improve the surface of metals, ceramics and polymers. The multilaser process gained...
Multiplexed Sensors Monitor Bridge Structure, Materials
Feb 1, 1998 — The Taylor Bridge, which spans the Assiniboine River west of Winnipeg, Man-itoba, Canada, is a "smart structure." The two-lane 165.1-m bridge is outfitted with 66 fiber optic sensors and leading-edge calibration and measurement systems designed to...
Optical Coating Absorbs in UV Range
Feb 1, 1998 — Reducing stray light is a problem that engineers often encounter when designing optical instruments. One method of achieving this reduction is to apply absorptive coatings on an instrument's critical components. Applications for the coating are...
Optical Materials Market Growth Predicted
Feb 1, 1998 — The Business Communications Co., a market research firm based in Norwalk, Conn., has released a review of the optical materials and engineering industry, projecting an average annual growth rate of 5.9 percent for optical materials despite military...
Optics Test Could Affect Future Microchips
Feb 1, 1998 — A recent test of optical coatings at MIT may lead to increased interest in solid-state light sources for next-generation microchip lithography. MIT staff scientist Vladimir Liberman conducted the study to evaluate the state of excimer-grade fused...
High Power Laser Optics:
Jan 1, 1998 — As power levels rise above 5 kW, optics become critical to the performance and reliability of laser systems. These applications demand consistent laser-quality ZnSe that is defect free and has bulk absorption at or near theoretical values. Other...
Laser Vibrometer Heightens Speaker Design
Jan 1, 1998 — The VPI 4000 scanning laser vibrometer produces a clear picture of what is happening on the surface of the speaker. Courtesy of Mackie Design. The company's first loudspeaker product, the HR824, represents its commitment to quality through the...
Software Gauges Efficiency of AR Coatings
Jan 1, 1998 — A British researcher has developed software that analyzes new antireflection coatings for optical systems. Geoff Adams, of UK-based Optical Software Co., has developed WinLens for Spindler & Hoyer -- software for designers of multi-glass...
Consortium to Deliver Optical Materials Standards
Dec 1, 1997 — GAITHERSBURG, Md. -- UV lithography, IR imagers and spectroscopy are just a few of the industries that could benefit from a consortium proposed by the National Institute of Standards and Technology (NIST). The Optical Properties of Materials...
Quick Screening Provides Key to New Luminescent Materials
Dec 1, 1997 — Researchers have long sought new compounds for ultraviolet-excited phosphors -- important for the development of flat panel displays and lighting. Because there are no reliable theories to predict the relation between composition and efficiency,...
Applications Are Sought for Congressional Science and Engineering Fellowship
Nov 1, 1997 — The Optical Society of America and the Materials Research Society are accepting applications for their congressional science and engineering fellowship for 1998-99. The congressional fellow spends one year working as a legislative assistant on the...
IR Beamsplitter Coatings Reduce Gas Analyzer Size, Cost
Nov 1, 1997 — A manufacturer of gas-analysis equipment had developed a product that could quickly and accurately measure up to 250 hydrocarbon gases, but it was not without its problems. It was a large, expensive instrument. The company determined that a...
Scientists Construct Model to Illustrate Behavior of Optically Excited Materials
Oct 1, 1997 — A group of researchers based at the University of Rochester and led by Shaul Mukamel has developed a set of theoretical models that illustrate how properties of both small and large molecules change when optically excited. Up until this point,...
Excimer Lasers, High-NA Optics Push Lithography
Jul 1, 1997 — 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 have already dipped below 0.25 µm.David...
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