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  • Volume 33, Issue 7

    • Volume 33, Issue 7

    More content from Volume 33, Issue 7

    A full line of reconditioned gas-laser systems are available that are completely refurbished, including the paint. New tubes for common HeNe lasers are also available, including...
    July 1, 1997
    Custom optics manufacturer Ferson Optics Inc. (Ocean Springs, MS) is moving into the stock-optics market with the release of its first catalog.
    July 1, 1997
    Visible-wavelength organic semiconductor lasers on a variety of substrates--including flexible plastic films--have lifetimes of at least several days (see Laser Focus World, May...
    July 1, 1997
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    Matching micron-sized tolerances, maximizing coupling efficiencies, and minimizing retroflections are essential to successful optoelectronic package design.
    July 1, 1997
    Bell Labs-Lucent Technologies (Murray Hill, NJ) claims to have demonstrated the first laser-based semiconductor sensor that operates at room temperature and at high power. The...
    July 1, 1997
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    Despite attempts to replace it with alternatives, mercury cadmium telluride remains the most important material for infrared photodetectors.
    July 1, 1997
    Engineers at Schwart¥Electro-Optics Aerospace Sensor Division (Orlando, FL) together with researchers at Fibertek (Herndon, VA) developed an eye-safe optical parametric oscillator...
    July 1, 1997
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    Raman spectra of pollutants, diamond films, and proteins obtained with UV laser excitation provide new windows into chemical properties.
    July 1, 1997
    Facing debts on the order of $0.5 million with no established income stream, HOLOS Corp. (Fitzwilliam, NH) has ceased trading. Established by H. John Caulfield of Alabama A&M ...
    July 1, 1997
    Optoelectronics Research Centre (Southampton, England) researchers have demonstrated efficient short-cavity distributed-Bragg-reflector (DBR) and distributed-feedback (DFB) single...
    July 1, 1997
    In CLEO `97 paper #CPD32, Markus Pollnau from the Optoelectronics Research Centre (Southampton, England) reported producing an average output power of 450 mW at 473 nm from a ...
    July 1, 1997
    The Video Electronics Standards Association, a project of the National Institute of Standards and Technology (NIST; Gaithersburg, MD), is developing a flat-panel-display measurements...
    July 1, 1997
    High-purity quartz photomask containing precision image of an integrated circuit is used to pattern the circuit image onto a semiconductor wafer.
    Photomasks are the fundamental component of optical lithography, the element that actually produces the pattern projected on the wafer.
    July 1, 1997
    The OFC2000 cleaver can be used right-handed or left-handed and can be mounted on a benchtop or tripod or held by hand.
    July 1, 1997
    A KrF excimer-laser microlithography stepper, the FPA-3000EX4, can process more than 73 wafers in an hour, exposing images with 0.25-µm features with 35-nm stage stepping ...
    July 1, 1997
    Room-temperature operation of an electrically pulsed gallium nitride (GaN) based blue-emitting (403-nm) semiconductor laser has been demonstrated by scientists at Cree Research...
    July 1, 1997
    The TS 1000 and TSC 1000 automatic laser-diode test stations are available with menu-driven software. The systems can provide fast analysis of L/I, V/I, and L/IPD with full 16...
    July 1, 1997
    C. Brent Dane and associates at Lawrence Livermore National Laboratory (Livermore, CA) developed a 120-J/pulse Nd:glass amplifier system based on a single Nd:YLF oscillator beam...
    July 1, 1997
    A small-field 193-nm stepper provides photoresist researchers with a development and test tool (left); SVG Lithography system produced this pattern of 0.2 µm features in silylation resist (right; image courtesy of MITLL; used by permission).
    Optical lithography is the primary method for bulk manufacture of integrated circuits.
    July 1, 1997
    The XCaliper 4 is a software package for machine-vision-system integrators that provides real-time industry vision capability. The software packages 32-bit industry-standard OCX...
    July 1, 1997
    Rensselaer Polytechnic Institute (RPI; Troy, NY) researchers demonstrated a free-space electro-optic sampling system capable of detecting frequencies u¥to 37 THz. Based on...
    July 1, 1997
    The Westinghouse Savannah River Site (Aiken, SC) and MetroLaser Inc. (Irvine, CA) have signed a cooperative research and development agreement to develo¥an optical metrology...
    July 1, 1997
    (Photo courtesy of MITLL; used by permission)
    FIGURE 1. Fused silica samples are irradiated with an argon fluoride excimer laser beam to evaluate performance in 193-nm lithographic systems. Visible fluorescence is indicative of the absorption of 193-nm radiation, though the correlation between the two is not straightforward.
    Projection optics for lithographic steppers are typically complex, expensive systems formed of precision components and cost in excess of $1 million. These objectives must provide...
    July 1, 1997
    Optical fabrication and metrology house Zygo Corp. (Middlefield, CT) has won a contract from Lawrence Livermore National Laboratory (Livermore, CA) to build and equi¥a 35,...
    July 1, 1997
    An all-solid-state Ti:sapphire oscillator/amplifier with a hollow-fiber/chirped-mirror pulse compressor that produces 5-fs pulses with peak powers of 0.1 TW at a 1-kH¥repetition...
    July 1, 1997
    The RMT-MS thermoelectric cooler is designed for use with high-power optical emitters and diode lasers. The TECs are based on single-crystal bismuth telluride and allow heat pumping...
    July 1, 1997
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    Raman instruments with near-infrared diode lasers and enhanced CCD cameras can minimize problems of sample fluorescence and low sensitivity.
    July 1, 1997
    Three modules for use with the company`s stereo microscopes are designed to make viewing easier and more comfortable. In addition to the company`s ErgoTube eyepiece, with a variable...
    July 1, 1997
    Custom high-density passive circuits or compact flexible assemblies for consumer product applications are possible using the company`s expertise in electroforming and other photolithogr...
    July 1, 1997
    A monolithic device based on aperiodically poled lithium niobate (LiNbO3) simultaneously compresses and frequency-doubles ultrafast pulses. Stanford University (CA) researchers...
    July 1, 1997