Materials, Coatings | Photonics Spectra

Materials, Coatings News

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 plentiful; an initial one is on instruments Monitor-3 and VDP on the Russian space mission INTERBALL. A team of researchers from Kyrgyz Academy of Sciences in Bishkek, Kyrgyzstan, the University of California at Berkeley and the Paul Scherrer Institute...

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...

Resurfacing Fattens up Big Lens

Jul 1, 1997 — A team of astronomers at the University of Arizona had a second try at creating the world's largest one-piece telescope mirror June 10. In April, it was discovered that 2 tons of glass had leaked out from the 8.4-m mirror and in certain places the...

Technique Offers Real-Time 3-D Microscopy for Materials

Jul 1, 1997 — JENA, Germany -- German microscope manufacturer Carl Zeiss Jena GmbH has developed a technique that it says provides three-dimensional, real-time microscopic images with the high resolution and sharp contrast of conventional light microscopy.The...

Sapphire Could Become Interferometry's Crowning Jewel

May 1, 1997 — NEDLANDS, Australia -- The gemology community considers sapphire to be one of the most precious stones on Earth, and researchers believe that the blue crystals' use as beamsplitters in laser interferometer gravitational wave detectors could be just...

Infrared Imager Helps Evaluate Papermaking Process

Apr 1, 1997 — The papermaking industry is among the highest consumers of energy in the US, and researchers at the Institute of Paper Science and Technology (IPST) in Atlanta are working to make the process more energy efficient. They chose Secaucus, N.J.-based...

Side-Pumping Diodes Mean More Power for Materials Processing

Apr 1, 1997 — SUNNYVALE, Calif. -- A novel technology in which a side-pumped laser diode drives a solid-state laser source could mean more power and greater precision for materials processing applications, say the scientists who developed it. Use of diode lasers...

Nifty 'Trick' Leads to First 3-D Optical Gratings

Mar 1, 1997 — Scientists at Lucent Technologies in Murray Hill, N.J., and The Netherlands' Utrecht University have discovered how to "trick" billions of glass spheres, each about as wide as one wave of visible light, into forming 3-D optical gratings. Researchers...

Standard Published for Optical Fiber Coating Removal

Feb 1, 1997 — A new standard published by the Telecommunications Industry Association (TIA), titled "Measurements of Strip Force for Mechanically Removing Coatings from Optical Fibers," quantifies the force needed to remove coatings from fibers along the...

X-Ray Microcalorimeter Developed for Improved Materials Analysis

Feb 1, 1997 — An x-ray microcalorimeter developed by the National Institute of Standards and Technology could improve materials analysis in the semiconductor industry. The device, compatible with commercially available scanning electron microscopes, can achieve...

A Bright Future for Organic Light-Emitting Diodes

Jan 1, 1997 — Organic materials are part of our everyday life, but only recently have photonic devices begun to exploit their versatility. For more than 20 years it was common knowledge that organic crystals exhibited electroluminescence when large voltages were...

Bright Days Seen Ahead for Optical Coating Industry

Jan 1, 1997 — NORWALK, Conn. -- Steady growth through the turn of the century is the forecast for the worldwide optical coating market, says a report from Business Communications Co. Inc. (BCC). The growth is expected to be buoyed by expanded use in medical and...

Imager Helps Standardize Process Transfers

Jan 1, 1997 — In the advanced materials processing arena, the use of low-pressure gas discharges is on the increase in applications such as the creation of submicron microchip architectures and thin diamond film deposition. Plasma conditions and processes are...

Nearing the End of the Road

Dec 1, 1996 — MAINZ, Germany -- The fourth and final glass/ceramic mirror substrate for the Very Large Telescope has been sent from Schott Glaswerke to R.E.O.S.C. near Paris for final finishing. Each of the 8.2-m mirrors took 23 months to complete and will be in...

Irish Research Institute Chooses Belgian Micromachining System for New Lab

Nov 1, 1996 — The National Micro-Electronics Research Institute of Cork, Ireland, is establishing a laser micromachining laboratory within its NMRC Materials Group that will use the LightDeck Micromachining System from Optec of Hornu, Belgium. The institute chose...

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