• Back Issues >
  • Laser Focus World >
  • Volume 44, Issue 2
  • Volume 44, Issue 2

    Th 0802lfwbasler Pioneer
    Optics

    New Products

    Feb. 1, 2008
    The piA2400 Gigabit Ethernet camera runs at 12 frames/s at a resolution of 2456 × 2048, based on Sony’s ICX625 CCD sensor with a global electronic shutter.
    Fiber Optics

    Does a fiber-laser manufacturer need its own diode fab?

    Feb. 1, 2008
    This new column explores somewhat confrontational and controversial technological and business issues in photonics, presenting opinions and commentary from industry experts who...
    Conard Holton2
    Software

    Working things out

    Feb. 1, 2008
    If a machine-vision system can help, then a machine-vision system integrator may be the answer.
    Research

    Winning the race but losing the battle in OLEDs

    Feb. 1, 2008
    While surfing the Web recently in search of a new television set for my rather small den, I couldn’t help but notice that Radio Shack’s Web site had some 37 LCD televisions for...
    Research

    To 40 Gigabits and beyond

    Feb. 1, 2008
    Speed and capacity of communications networks will be very much on the minds of attendees at this month’s OFC/NFOEC conference in San Diego, CA.

    More content from Volume 44, Issue 2

    Research

    LASER INDUSTRY REPORT

    Feb. 1, 2008
    Laser and laser solutions provider Rofin-Sinar Technologies (RSTI; Plymouth, MI, and Hamburg, Germany) signed a definitive agreement for the acquisition of Nufern (East Granby...
    Optics

    OPTICS INDUSTRY REPORT

    Feb. 1, 2008
    The University of Nevada, Reno’s (UNR; Reno, NV) Fleischmann Planetarium and Science Center has opened its newest exhibit entitled “Perceptual Relativity”-an interactive exhibit...
    Research

    IMAGING & DETECTOR INDUSTRY REPORT

    Feb. 1, 2008
    Bandwidth Semiconductor (Hudson, NH), a wholly owned subsidiary of Spire (Bedford, MA), is now Spire Semiconductor.
    Research

    FIBER OPTICS INDUSTRY REPORT

    Feb. 1, 2008
    MRV Communications and Source Photonics (Chatsworth, CA; a wholly owned subsidiary of MRV, formerly Luminent) announced that a registration statement has been filed with the U...
    (Courtesy of Stefan Karsch)
    An optical parametric chirped-pulse amplification (OPCPA) system based on the ATLAS system at the Max Planck Institute for Quantum Optics in Germany produces pulses with energy between 150 and 250 mJ and pulsewidth of approximately 5 fs (inset).
    Research

    PULSE AMPLIFICATION: Few-cycle pulses get seriously powerful

    Feb. 1, 2008
    In a stunning display of the power of a pulse amplification method called optical parametric chirped-pulse amplification (OPCPA), researchers have demonstrated sub-10 fs ultrabroadband...
    Research

    SCIENCE AND TECHNICAL EDUCATION: Web site is a treasure trove of educational resources

    Feb. 1, 2008
    The Web site includes an “Optical illusions Gallery” filled with experiments, and lesson plans, a “Future Scientists” section that contains a wide array of hands-on experiments...
    (Courtesy of Cornell University)
    Polysilicon racetrack resonators are coupled to single-crystal silicon waveguides in a unique vertical integration process that is working toward the demonstration of three-dimensional CMOS-compatible optical networks.
    Optics

    SILICON PHOTONICS: Polysilicon resonates toward CMOS-compatible 3-D networks

    Feb. 1, 2008
    Although many silicon photonic components have been developed toward the goal of on-chip optical networks, progress has largely been based on silicon-on-insulator components in...
    (Courtesy of University of Illinois at Urbana-Champaign)
    Two-photon polymerization is used to create embedded structures within a three-dimensional photonic-crystal lattice structure. A final acid and ozone etching steps removes the polymer and silica colloids, and leaves complex structures (a), straight vertical cylinders (b), vertical “y” splitters (c), and planar cavities (d) within the cystal. Scale bars are 3 µm in length and the colloidal sphere diameters are around 725 nm in diameter.
    Research

    PHOTONIC CRYSTALS: 3-D photonic crystals embed cavities and waveguides

    Feb. 1, 2008
    Photonic-bandgap materials such as photonic crystals are important for their ability to manipulate photons.
    (Courtesy of Pascal Del’Haye, Olivier Arcizet)
    FIGURE 1. A row of glass microtoroids, each with a diameter of 75 µm, can be seen as the thin line in this picture of a silicon chip. The microtoroids are fabricated using standard semiconductor lithography techniques.
    Research

    OPTICAL FREQUENCY COMBS: Glass microtoroids generate combs

    Feb. 1, 2008
    It is fitting that the next step forward for optical frequency combs should occur at the Max Planck Institute for Quantum Optics.
    (Hughes Photo, courtesy of AIP Niels Bohr Library)
    Th 0802lfwn12
    Research

    Irnee D’Haenens, laser pioneer, dies

    Feb. 1, 2008
    Irnee D’Haenens (right), a physicist who assisted Ted Maiman (left) in making the first laser at Hughes Research Laboratory (Malibu, CA) in 1960, died Dec. 24, 2007; he was 73...
    When nanorods containing folic acid are exposed to near-IR laser light, they heat up and induce blebs in the membranes of an adjacent cancer cell. Images left and center show the nanorods (red spots) before and after irradiation, respectively. The resulting opening of the membrane (red) can be seen (right), as well as an elevation in intracellular calcium ions that leads to production of the blebs.
    Research

    MEDICAL THERAPEUTICS: Lasers and nanorods combat cancer

    Feb. 1, 2008
    An interdisciplinary team from Purdue University has shown that a combination of laser technology and nanotechnology that it originally developed for medical imaging also has ...
    (Courtesy of Vaisala Oyj)
    The DCS111 laser system installed on a pole monitors a roadway near Kouvola, Utti, Finland.
    Detectors & Imaging

    ROAD MONITORING: Laser system monitors slipperiness of roadways

    Scandinavian motorists have a new tool for detecting dangerous road conditions. A laser-based road-monitoring system bounces light from the road to a detector and can sense when...
    Th 0802lfwn1
    Lasers & Sources

    SOLAR LEDs: Solar-powered flashlight gets new design for those in need

    When John Ellis, president of Optics for Hire (Arlington, MA) read a New York Times story on a U.S. diplomat delivering flashlights to Africans in need, he knew he wanted to help...
    (Courtesy of Joseph Kovac/MIT)
    MIT researchers have developed a system for sorting cells that involves single-cell-size microwells in a silicone layer bonded to a microscope slide. Cells observed to have properties of interest are levitated out of their traps using the pressure of a beam of targeted light from a low-cost laser. A flowing fluid then sweeps the selected cells off to a separate reservoir.
    Research

    BIOPHOTONICS: Microfluidics and laser optics provide low-cost cell sorting

    Researchers at the Massachusetts Institute of Technology (MIT; Cambridge, MA) are patenting a microscope-compatible device that combines microfluidics and laser optics in a potentially...
    (Courtesy Daniel Gauthier)
    A sound wave in standard optical fiber may offer a novel approach to optical data storage in telecommunications networks. Counterpropagating pulses-one carrying data-in standard optical fiber interact through stimulated Brillouin scattering to create an acoustic wave in the fiber that carries the data (A & B). The process can be effectively reversed to retrieve the data pulses, as shown.
    Fiber Optics

    OPTICAL MEMORY: Sound may offer ‘optical RAM’ solution

    Feb. 1, 2008
    As optical networks become more ubiquitous and data-transfer rates increase, there is one component that is ever more conspicuous by its absence—optical memory.