<< November 2001

Technology Close-Up As optical networks increase data rates to 10 Gb/s and beyond, the effects of chromatic and polariza...	Hidden in Plain Sight: Calcium Fluoride’s Intrinsic Birefringence For years, lithographers have applied progressively shorter exposure wavelengths to reduce the minim...
Infrared and Visible Imaging Combined in One Camera Industrial and predictive maintenance engineers need to quickly and accurately find problems prior t...	Spectrophotometry Takes Measure of Deep-UV Lithography High-performance deep-UV spectrophotometry played a vital role in the research and development of 19...
Photonics Pointers The increasingly widespread use of lasers in a variety of applications and fields will require more ...	Phase-Shift Techniques Rewrite the Semiconductor Road Map The semiconductor industry has generally followed the path of least resistance in its pursuit of den...
Vibration Control Gets Active Designers of precision manufacturing machinery are wrestling with increasingly tight alignment toler...

’Guide Star’ Enables Sodium Measurements Researchers at Imperial College in London are employing adaptive optics technology to measure sodium...	Mobile System Features Three Mass Spectrometry Techniques There are few chemical species that cannot be identified through one or another of mass spectrometry...
Machine Vision Has Eyes for Foul Fowl With the rising concern over cholesterol, the demand for chicken now outpaces the demand for beef in...	Engineering Emmys Presented The National Academy of Television Arts and Sciences of New York recognized scientific accomplishmen...
Lidar Demonstrates Feature Discrimination Scientists use remote-sensing techniques to characterize landform variation, to evaluate the health ...	Spectra Determine Fruit Ripeness If you have ever bought the "perfect" piece of fruit from the grocery store only to have it rot the ...
FTIR Spectroscopy Detects Biohazards With the recent anthrax attacks in the US, finding a means of detecting airborne biological agents f...	Researchers Demonstrate Macroscopic Entanglement With one experiment, researchers have heartened Star Trek fans and quantum computing enthusiasts. A ...
Multispectral Imaging Monitors Coral A study appearing in the Sept. 6 issue of Nature concludes that airborne multispectral imaging may b...	Light-Reactive Coating Cleans Surfaces If you shine ultraviolet light on a surface coated with titanium dioxide, a common white pigment in ...
Recordable CDs Are Source of Gold Substrates Hua-Zhong Yu isn’t burning mixes of MP3s from Napster with his stacks of recordable CDs. An...	Optical Digital Signal Processor Boosts Speeds A new approach to signal processing promises to reduce bottlenecks in telecommunications networks. L...
Bolometer Array Suitable for 350-µm Astronomy Researchers at the Jet Propulsion Laboratory and California Institute of Technology in Pasadena, Law...	Nd:YAG Produces 53-mJ Green Light It may not be easy being green, but researchers at Mitsubishi Electric Corp.’s Advanced...
Xenon Source Offers Hemispheric Emission A team at the University of Central Florida in Orlando has demonstrated a differential-pumping schem...	Unmanned Vehicles Fly by Light By exploiting quantum mechanics, researchers at the Naval Research Laboratory in Washington have use...
Ultrafast Setup Machines and Measures Researchers at the University of Aarhus in Denmark have developed laser techniques for manufacturing...	Quantum-Dot Detector Spots Submillimeter-Wave Photons Doubling up can single out photons. A new submillimeter-wave detector promises the sensitivity to sp...
Simple Bulk Optic Offers Simple Beam Control Bulk solid optics have helped circumvent the need to align multiple free-space optics within communi...	AlGaN/GaN Deposited on Silicon Aixtron AG of Aachen, Germany, has announced that a research group has deposited III-V semiconductor...
Laser Spectroscopy Refines Antiparticle Measurement The existence of the antiproton was predicted in 1930 and confirmed experimentally in 1955. These pa...	Plasma Displays 0.12% Conversion Efficiency Laser-induced plasmas have emerged as potential sources of soft x-rays and extreme-UV light for appl...
Photoinduced Reflectivity Creates Near-Field Probes Transient-aperture probes generated with light promise high resolutions and near-video rates for nea...	Optical System Enables 2-D Scanning In pursuit of new e-book technology, researchers have designed a novel optical system that scans in ...
Nd:LuYLF Generates 4.5-ps Pulses Solid-state lasers based on Nd:LuLF offer a wider spectral emission than those based on Nd:YLF, maki...

Photonics Companies Honored Thirteen photonics companies have received Tibbetts Awards, which recognize small firms, projects, o...	For Their Eyes Only The US Defense Department has gobbled up all of the material on Afghanistan from the only commercial...
Michigan Focuses on Physics The National Science Foundation has established a physics frontier center at the University of Michi...	Government Joins Lockheed Suit The US Justice Department has intervened in a whistle-blower lawsuit accusing Lockheed Martin Corp. ...
Contract Funds Electro-Optic Polymer Research The US government has awarded a $1.6 million contract to Lumera Corp., a subsidiary of Microvision I...	Florida Groups Develop Energy-Efficient UV LEDs The universities of Florida, South Florida and Central Florida are collaborating with Uniroyal Optoe...
Will Photonics Take Flight in Safety Devices? Automated authorization systems for aircraft access, cabin-to-cockpit monitoring cameras, mandatory ...	Biodetector Market Booming The market for chemical and biological agent detectors will almost double by 2007, according to a ne...
Bell Labs Gets New Presidents Lucent Technologies has announced the appointment of Bill O’Shea as chief technology officer...

Laser Technique Analyzes Pharmaceuticals Lot consistency is a major concern in pharmaceutics. Constant testing of batches of tablets and caps...	Three-CCD Camera Captures Novelty Images For several years, amusement parks have been snapping photos of thrill seekers as they take the plun...
Infrared Diode Laser Excites Visible Fluorophores Many diagnostic and biological tests use antibodies or DNA probes, called markers, that bond to spec...	Single-Pixel Sensor Revs Up Mirrors Gentex makes about 7 million auto-dimming mirrors each year for major auto manufacturers. Despite th...

India Launches Spy Satellite? On Oct. 22, the Indian Space Research Organisation launched three satellites from the Sriharikota Hi...	Contractor Receives Prison Time Philip D. Bolen, president of Nexex Corp. of Altamonte Springs, Fla., will serve 30 months in prison...
NASA’s Odyssey Reaches Mars On Oct. 23, NASA’s 2001 Mars Odyssey space probe entered a highly elliptical orbit around...	MacArthur Foundation Announces ’Genius Grants’ The John D. and Catherine T. MacArthur Foundation has announced the recipients of the 2001 MacArthur...
Alcatel Displays 1.6-Tb/s Transmission Alcatel of Paris has announced that it has demonstrated unrepeatered optical transmission at 1.6 Tb/...

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Since 1967, Photonics Spectra magazine has defined the science and industry of photonics, promoting an international dialogue among the engineers, scientists and end users who develop, commercialize and buy photonics products. Photonics Spectra is unique in that it provides both technical and practical information for every aspect of the global industry, integrating all segments of photonics: optics, lasers, imaging, fiber optics, electro-optics, as well as photonics component manufacturing.