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(38,334 articles)
Popular News
Tiny Ring Resonator in Silicon Is a Wavelength Converter
Dec 1, 2005 — Wavelength converters perform the important function of changing an optical signal from one wavelength to another. Such a capability is vital, for example, when a channel to be added to a wavelength-multiplexed fiber has the same wavelength as an existing channel. Many approaches to wavelength conversion have been proposed and demonstrated during the past several years, but they all have been dependent on large and/or expensive devices whose incorporation into low-cost, highly integrated...
Hyperentangled Photon Pairs Produced
Dec 1, 2005 — Investigators at the University of Illinois at Urbana-Champaign and at the University of Queensland in Brisbane, Australia, have used paired nonlinear crystals to prepare photon pairs that are entangled in all degrees of freedom: polarization,...
Quantum Chaos Observed in Photoionization
Dec 1, 2005 — Using a modern variant of the experiments at the dawn of quantum physics that probed the photoelectric effect, scientists at Max Planck Institut für Quantenoptik in Garching, Germany, have found that photoionized rubidium-85 atoms simultaneously...
Butterfly Features Structurally Enhanced Fluorescence
Dec 1, 2005 — Reporting in the Nov. 18 issue of Science, researchers at the University of Exeter in the UK describe how the scales on the wing of the African swallowtail butterfly Papilio nireus resemble high-efficiency LEDs. The blue and blue-green scales, they...
Near-Field Solid-Immersion Mirror Records Data Optically
Dec 1, 2005 — Investigators at Seagate Technology’s research laboratory in Pittsburgh have demonstrated a near-field planar solid-immersion mirror that could usher in higher optical data storage densities than what magnetic media offer. The approach offers...
Maskless Photolithography May Offer Cost Advantage
Dec 1, 2005 — Conventional lithography achieves sub-100-nm features by using short-wavelength light, immersion technology and optical enhancements such as phase-shift masks. But the dramatically increasing cost of the latter makes alternative, maskless...
Optical Switch in Silicon Relies on Photonic Crystal
Dec 1, 2005 — All-optical switching — in which light in a “control” beam switches light in a “signal” beam on or off — is the fundamental building block of such cutting-edge photonics technologies as telecommunications and optical computing. Moreover, optical...
Single-Mode Fiber Laser Generates 125 W Tunable over 20 nm
Dec 1, 2005 — Powerful single-frequency lasers are required for many scientific and engineering undertakings, such as gravity-wave detection and coherent combination of multiple beams. Such sources also have potential as very high power transmitters in...
Photonics Examines Pharmaceuticals at Environmental Interfaces
Dec 1, 2005 — With the increased use of antibiotics, hormones, herbicides and pesticides in agriculture, the environmental effects of these substances have become a concern. The discharge of veterinary antibiotics can lead to drug resistance in target microbes,...
Multimode Fiber Thinks Its Single-Mode
Dec 1, 2005 — In an unusual intersection of fiber optics and astronomy, a collaboration of British and Australian scientists has yielded a technique that they believe could revolutionize ground-based infrared astronomy. Bright and narrow spectral lines from...
Technique Auto-Aligns Fiber to a Waveguide
Dec 1, 2005 — The high cost of actively aligning components in photonic devices is one of the major barriers to a generation of inexpensive, mass-produced photonic equipment. Indeed, Intel Corp.’s Photonics Technology Lab of Santa Clara, Calif., has identified...
Silica Nanotubes Loaded with Laser Dyes
Dec 1, 2005 — A team of scientists in South Korea has used a sol-gel process to fabricate color-tunable silica nanotubes that incorporate functional laser dyes. The investigators suggest that the one-dimensional structures may form the basis of new nanoscale...
Jobs in Photonics
Dec 1, 2005 — When Photonics Spectra conducted its annual European salary survey, it found a shift in pay that was slightly surprising. This year’s survey shows a decrease in pay. In 2004, the median salary for Europe was €60,000. This year, our salary survey...
News Briefs
Nov 30, 2005 — As part of a market expansion plan, Kaleido Technology ApS of Farum, Denmark, a manufacturer of OEM discrete and integrated optical components and subsystems, has appointed Jesper Wolf Bek as its new CEO. Bek, most recently with Intel Corp., as held...
Sony, Idemitsu to Make OLEDs Together
Nov 30, 2005 — TOKYO, Japan, Nov. 30 -- Idemitsu Kosan Co. Ltd. and Sony Corp. have signed an agreement to jointly develop new organic light-emitting diode (OLED) luminous materials by sharing each other's OLED-related patents. The formal contract is expected to...
Fluorescent DNA Could Detect Cancer Early, UF & Columbia Researchers Say
Nov 30, 2005 — GAINESVILLE, Fla., & NEW YORK, Nov. 30 —- University of Florida and Columbia University researchers say they are a step closer to a technique to easily detect a wide variety of cancers before symptoms become apparent. The findings involve...
Purdue's 'Metamaterial' Could Lead to Better Optics, Communications
Nov 30, 2005 — WEST LAFAYETTE, Ind., Nov. 30 -- Engineers at Purdue University are the first researchers to create a material that has a negative index of refraction in the wavelength of light used for telecommunications, which they say is a breakthrough that...
Purdue's 'Metamaterial' Could Lead to Better Optics, Communications
Nov 30, 2005 — WEST LAFAYETTE, Ind., Nov. 30 -- Engineers at Purdue University are the first researchers to create a material that has a negative index of refraction in the wavelength of light used for telecommunications, which they say is a breakthrough that...
News Briefs
Nov 29, 2005 — Military contractor BAE Systems of Burlington, Mass., has been selected by the Defense Advanced Research Projects Agency (DARPA) for Phase I of the Integrated Battle Command (IBC) Program, which will provide military commanders with simulation...
Agilent Acquires Molecular Imaging
Nov 29, 2005 — PALO ALTO, Calif., Nov. 29 -- Agilent Technologies Inc., a maker of test and measurement equipment with applications in electronics, communications, life sciences and chemical analysis, today announced that it has acquired privately held Molecular...
News Briefs
Nov 28, 2005 — New York-based L-3 Communications has appointed James D. Benham to the newly created position of president of the Electron, Microwave and Power Devices Group within the company's Products Group. In this new role, Benham will oversee L-3's electron...
Molecular Switch Control Method Devised
Nov 28, 2005 — UNIVERSITY PARK, Pa., Nov. 28 -- A team of scientists at Penn State, Rice University and the University of Oregon have developed a way to control single-molecule switches by engineering their design and environment. The discovery, which is an...
Nanomaterials Researchers Win $1.3M Grant
Nov 28, 2005 — NEWARK, Del., Nov. 28 -- A University of Delaware (UD)-led research team has received a $1.3 million grant from the National Science Foundation (NSF) to fund nanoscale research that may pave the way for future photonic advances such as an optical...
ViaSat to Buy Efficient Channel Coding
Nov 25, 2005 — CARLSBAD, Calif., Nov. 25 -- ViaSat Inc., a satellite and wireless communication technology provider to government and commercial markets, has reached an agreement to buy privately-held Efficient Channel Coding Inc. (ECC), a producer of broadband...
News Briefs
Nov 25, 2005 — Sense Holdings Inc., a Fort Lauderdale, Fla., developer of biometric and explosives detection security technologies, has filed a patent involving handheld explosives detectors based on microelectromechanical sensors, or MEMS. The company is also...
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