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(38,293 articles)
Popular News
Photonics and Food: The Perfect Chocolate Chip Cookie
Mar 1, 2000 — With advanced camera technology, faster processors and robust software, machine vision not only helps automate cookie production, but also can help soften the stamp of a factory line to produce a commodity appearing as coarse and genuine as the cookies mailed in a shoe box from home. Laser diodes contribute to accurate yet flexible inspection systems, as illustrated by solutions to a hypothetical cookie application fielded by three vision integrators.Svep Design Center AB in Lund, Sweden,...
Photonics and Food: From Corn to Cupcakes
Mar 1, 2000 — Photonics goes to work before the corn even begins to grow. For example, Dicky-john Corp., a farm equipment supplier in Auburn, Ill., makes an LED-based sensor that lets corn farmers know how many seeds they have planted. Dicky-john’s seed...
Small Displays Loom Large
Mar 1, 2000 — A wearable display could replace a laptop computer screen or serve as a mobile Internet browser, offering privacy, portability and hands-free operation. Although these and many other wearable display applications continue to excite the imaginations...
News Flash: Rekindled Waco Debate Prompts IR Test
Mar 1, 2000 — The Branch Davidian compound near Waco, Texas, burned to the ground on April 19, 1993, marking the end of a 51-day standoff between members of the religious group and federal officials. What began as a raid by agents of the US Bureau of Alcohol,...
Technology Close-Up: Micromirrors Relieve Communications Bottlenecks
Mar 1, 2000 — Information is the lifeblood of global commerce in the 21st century, and networks are its veins and arteries. But even the highest-capacity optical networks are subject to "thromboses" -- bottlenecks that thwart and complicate delivery of the...
'31 Whiskey' Means Civilian Jobs
Mar 1, 2000 — NEW YORK -- Ask any photonics CEO, and he or she will tell you that good managers, engineers and technicians are in strong demand in today's hot high-tech job market. And just where do you look for an experienced "31 Whiskey"? In military-speak, a...
Optical Networking Alliance Formed
Mar 1, 2000 — PerkinElmer Inc. (formerly EG&G Inc.) of Wellesley, Mass., and Bragg Photonics Inc. of Montreal announced that they will jointly develop integrated fiber optic products and solutions for the telecommunications industry. Under terms of the...
Coherent Establishes Telecom Unit
Mar 1, 2000 — Santa Clara, Calif.-based Coherent Inc. announced that it has formed a telecommunications business unit to manage the company’s strategies in the market. The unit will coordinate the efforts of its semiconductor growth facility in Tampere,...
Cooling Moves Beyond Optical Molasses
Mar 1, 2000 — Physicists at Stanford University in Stanford, Calif., reported the 3-D degenerate Raman sideband cooling of cesium atoms to 290 nK and a phase-space density nearly three orders of magnitude higher than that produced with the free-space optical...
Lucent Technologies to Purchase Ortel
Mar 1, 2000 — Lucent Technologies of Murray Hill, N.J., has announced plans to acquire Ortel Corp. of Alhambra, Calif., in a deal that has an estimated value of $2.95 billion. Shareholders will receive 3.135 shares of Lucent stock for each share of Ortel....
Nanovation Funds Creation of Photonics Research Facility at MIT
Mar 1, 2000 — Miami-based Nanovation Technologies Inc. and the Microphotonics Center at the Massachusetts Institute of Technology in Cambridge announced that the company has agreed to donate $90 million over six years to establish a photonics research...
Artist Donates Schott Glass Sculpture
Mar 1, 2000 — Christopher Ries, artist-in-residence at Schott Glass Technologies Inc. in Duryea, Pa., donated his 1988 work Sail to the University of Central Florida’s school of optics in Orlando. The sculpture, which is approximately 4 ft high and 400 lb,...
Aircraft Prepared for Antimissile Laser
Mar 1, 2000 — Over the next 18 months, a 747-400 freighter aircraft in Wichita, Kan., will be modified to destroy ballistic missiles in their boost phase at a range of hundreds of miles. The freighter, built by Boeing of Seattle for the US Air Force’s...
Artificial Vision Lets Blind See
NEW YORK -- NEW YORK -- After more than 25 years of total blindness, a 62-year-old retired state worker can discern shapes in black and white, thanks to an artificial vision device developed at the Dobelle Institute Inc. Many scientists, physicians and...
Fluorescence Gets Easier to Measure
BALTIMORE -- BALTIMORE -- Measurements of fluorescence lifetimes provide important information about fluorophores that is not available from simple intensity measurements. Lifetimes in the nanosecond range typically are determined by observing the decrease in...
Near-IR Diodes Help Make Gas-Trace Measurement Faster
MUNICH, Germany -- MUNICH, Germany -- In our everyday lives, we all are exposed to "BTX" -- air pollutants that are found at gas stations, at workplaces or on roads. BTX stands for benzene, toluene and xylene, three organic substances that are suspected carcinogens....
Porous Gold Nanostructures Perform Light Tricks
NEWARK, Del. -- NEWARK, Del. -- The optical properties of a newly developed nanoporous gold material with long-range periodicity may generate several photonic applications. This material is prepared by packing colloidal gold particles (15 to 25 nm in diameter)...
Rapid Spectral Imaging Determines Grapes’ Ripeness
PITTSBURGH -- PITTSBURGH -- In the long history of winemaking, determining when to harvest the grapes has been a task marked as much by guesswork as by skill. The conventional means to gauge ripeness involves selecting sample grapes and testing them with a sugar...
Lidar Technique Refines Aerosol Data
SEATTLE — Measuring the impact of man-made aerosols on global climate change may become a little more accurate, thanks to a new device termed a 180° backscatter nephelometer. The device, developed by Theodore L. "Tad" Anderson and his colleagues in the...
Mode-Locked Laser Tackles Raman Spectroscopy
AUSTIN, Texas -- AUSTIN, Texas -- Researchers at the University of Texas have taken the first steps toward developing a rugged Raman spectrometer based on a high-power laser diode -- steps that may lead to a device that can detect environmental pollutants as well as...
Nakamura’s Diodes Display True Blue Emission
Mar 1, 2000 — Researchers from Nichia Corp. in Anan, Japan, including the company’s former head of research and development Shuji Nakamura, reported that they have produced 450-nm laser diodes. Nakamura’s work has led to the commercial production of...
Nanocrystals Outshine Laser Dyes
JERUSALEM -- JERUSALEM -- Semiconductor nanocrystals fabricated at Hebrew University produce a bright fluorescence radiation that can be size-tuned to the near-infrared. Chemists Uri Banin and Yun-Wie Cao’s method for making the nanocrystals with an indium...
Optical Systems Created with Microlenses
Mar 1, 2000 — A research team from the Universität Mannheim in Germany has produced micro-objectives with a large numerical aperture by stacking gradient-index microlenses. The results, which were published in the Dec. 1, 1999, issue of Applied Optics,...
Interferometer Modified for Orbit
Mar 1, 2000 — An improved mount for a Fabry-Perot interferometer promises to reduce distortion in the etalon and eliminate finesse degradation from launch vibration. The mount, which will be incorporated into a satellite-based instrument to perform daylight...
Organic Material Offers Fast Response
YOKOHAMA, Japan -- YOKOHAMA, Japan -- Because of their low cost and good manufacturability, organic photoconductors play an increasing role in xerographic applications and as the carrier transport layer in electroluminescent displays. But the photoelectric properties...
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July 2024
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