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New Phosphor View Promises Display Advances

Jan 1, 1997 — ALBUQUERQUE, N.M. -- A fresh insight into the nature of phosphors promises brighter, more colorful displays and, ultimately, a challenge to liquid crystals for dominance in the portable display market, say scientists at Sandia National Laboratories.Liquid crystal displays tend to appear blank when viewed from angles other than straight on, placed in direct sunlight, subjected to rapid changes in temperature or accelerated rapidly. In addition, their batteries run down quickly because their...

Optical Fingerprint Recognition Could Have Applications in Bank, Internet Security

Jan 1, 1997 — GAITHERSBURG, Md. -- Researchers at the National Institute of Standards and Technology (NIST) have combined optical correlation methods and digital neural networks to provide more accurate real-time fingerprinting for financial, credit and Internet...

Russian Laser at Duke University Pumps out UV, Gamma Rays

Jan 1, 1997 — DURHAM, N.C. -- After settling in at Duke University, the Russian free-electron laser (FEL), has been brought to life emitting UV beams. The OK4 optical klystron FEL, developed at the Budker Institute of Nuclear Physics in Novosibirsk, Russia, was...

Summit Technology Wins FDA Approval for Further Clinical Tests

Jan 1, 1997 — Waltham, Mass.-based Summit Technology Inc. will expand clinical trials of its excimer laser system to treat farsightedness, thanks to approval from the US Food and Drug Administration. The trials will test the company's SVS Apex Plus excimer laser...

Two-Photon Therapy Holds Promise as Cancer Treatment

Jan 1, 1997 — OAK RIDGE, Tenn. -- A two-photon laser technique holds the promise of treating deep-tissue cancers such as early-stage breast cancer, say the scientists who developed the technique. Researchers at Oak Ridge National Laboratory employ a mode-locked...

US Commerce Department Revises Directory of Standards Activities

Jan 1, 1997 — The 1996 edition of Standards Activities of Organizations in the United States (SP 806) from the US Commerce Department's National Institute of Standards and Technology summarizes the standards activities of more than 700 organizations. The newly...

White-Light Device Measures Warpage of Printed Circuit Boards

Jan 1, 1997 — ATLANTA -- A new technique using a broadband white-light source will enable electronics manufacturers to measure the warpage of a printed circuit board design before it goes into mass production, according to scientists at the Georgia Institute of...

Art and Science Collide

Dec 1, 1996 — MELVILLE, N.Y. -- This colorful image of a dogfish placoid scale was among the top 10 entered in the 22nd annual Nikon International Small World Competition. David K. Terbush of the George Washington University Medical Center in Washington magnified...

Coherent Ships Glaucoma-Treating Lasers Overseas

Dec 1, 1996 — Coherent Inc. of Santa Clara, Calif., announced that it will begin shipment outside the US of a medical laser used in primary open-angle glaucoma treatment. The company designed its Selecta 7000 specifically to perform selective laser...

Data Cards to Combine Optical, Microchip Capabilities for PC Interface

Dec 1, 1996 — Prototype hybrid smart/optical data cards from Drexler Technology Corp. of Mountain View, Calif., will link microchip cards to personal computers using Microsoft and Hewlett-Packard interface specifications. Drexler said it will put a microchip and...

Dutch Claim Lead in Fiber Tests

Dec 1, 1996 — EINDHOVEN, The Netherlands --Heroes are back. A standard feature of the fiber optic scene in the 1980s, so-called hero experiments, in which researchers vie for records in terms of bits times kilometers of transmission, faded away in the push for...

Europeans Issue Report on Diffractive Optics Technology

Dec 1, 1996 — JENA, Germany -- The development of a step-by-step fabrication process for diffractive optical elements was announced in the final report of a European research alliance concerned with discoveries and applications in the field. The partnership,...

IBM Laser Scientist-Sleuths Solve an Old Astronomy Mystery

Dec 1, 1996 — YORKTOWN HEIGHTS, N.Y. -- Two IBM scientists, calling on their years of expertise in lasers, believe they have solved the missing starlight mystery -- a.k.a. the diffuse interstellar bands, or DIBs. Astronomers have long known that light from...

Laser Welding Technology to Put Kewaunee Power Plant Back On-Line

Dec 1, 1996 — KEWAUNEE, Wis. -- Throughout the nuclear power industry, steam generators have met their enemy, and its name is corrosion. Now, a new laser welding technology may prove to be the saving grace of corroded steam generator tubes in general and for the...

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...

New ATM-Switching Technology Boasts Trillion-Bit Network Potential

Dec 1, 1996 — Scientists at Lucent Technologies/Bell Labs have demonstrated a switching technology that they say will allow communications networks to control 1 trillion bits of information simultaneously; network systems now handle up to 20 Gb/s. The prototype...

Sensor Company to Develop Image-Enhancement Processor for US Air Force

Dec 1, 1996 — Irvine Sensors Corp. of Costa Mesa, Calif., is developing an electronic image-enhancement processor for the US Air Force's Wright Laboratory Avionics Directorate. The processor will be part of an add-in board for the lab's 50-billion operations per...

Shattered Beamlet Lens Blamed on Timing Error

Dec 1, 1996 — LIVERMORE, Calif. -- A high-power experiment on Lawrence Livermore National Laboratory's Beamlet laser destroyed one of the setup's lenses and damaged another. No injuries were reported, but officials say that the September incident caused $70,000...

Three Lidars Team Up to Probe the Atmosphere

Dec 1, 1996 — CHAMPAIGN, Ill. -- In a joint optical remote-sensing program, scientists from the National Center for Atmospheric Research (NCAR) Atmospheric Technology Div. and the National Oceanic and Atmospheric Administration (NOAA) Environmental Technology...

Toshiba Develops Blue-Purple Laser for Next-Generation Digital Storage

Dec 1, 1996 — Scientists at Toshiba Corp. have generated 417-nm pulses using a GaN semiconductor laser powered at room temperature. The company's metallorganic chemical vapor deposition technique made the development possible by controlling the phase boundary of...

US Air Force, Utah State University to Make Cheaper Satellite Communications

Dec 1, 1996 — Developing a lightweight, inexpensive satellite laser communications system is the goal of an educational partnership agreement between the US Air Force's Phillips Laboratory and Utah State University. Researchers will build and test a low-power...

'Artificial Nose' Uses Fiber Optics to Emulate the Real Thing

Nov 1, 1996 — MEDFORD, Mass. -- One of the most complex sensors of all -- the human nose -- is the inspiration for a fiber optic sensor that can detect and differentiate chemical vapors better than commercial electronic chemical-detecting devices. "Commercial...

British Aerospace Society Publishes Report on Photonics in Avionics

Nov 1, 1996 — A report titled "Applications of Photonics in Avionics: Statement of Anticipated Requirements" and offered by the Society of British Aerospace Companies provides an overview of prospective avionics requirements for photonics technology to university...

Conductus Inc., Standards Agency Join to Design Superconducting Bolometer

Nov 1, 1996 — Conductus Inc. of Sunnyvale, Calif., and the National Institute of Standards and Technology have developed an ultrasensitive high-temperature superconducting bolometer for infrared imaging applications. The device, designed under a cooperative...

Department of Energy Eyes Nanocrystal Implants for Better Displays

Nov 1, 1996 — Scientists at the US Department of Energy's Oak Ridge National Laboratory have demonstrated the ability to implant high concentrations of metallic and semiconductor nanocrystals in surface layers of glass, silica and other materials. The...

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