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(38,345 articles)
Popular News
Edge Coupler Links All-Solid Photonic-Bandgap Fibers
Dec 1, 2007 — Researchers at Nanyang Technological University and at the Institute for InfoComm Research, both in Singapore, have fabricated what they believe is the first photonic-bandgap fiber coupler. Couplers are crucial to almost all applications of optical fiber, but previous couplers for holey fibers had been unable to avoid contamination of the airholes, which introduces excess loss to the coupler. Figure 1. Shown are an optical micrograph and a scanning electron micrograph of the fiber cross...
LIGHT ENGINE
Dec 1, 2007 — OneLight Corp. has released an eight-page brochure titled “Any Spectrum. Any Intensity. Any Time. One Light,” which describes the company’s OneLight Spectra spectrally programmable light engine for microscopy, spectroscopy and other measurement...
PULSE GENERATORS
Dec 1, 2007 — Berkeley Nucleonics Corp., a supplier of electronic instrumentation for testing, measurement and nuclear research, has updated its pulse generator Web site to include extensive information on its digital delay and pulse generation equipment. Through...
SPECTROSCOPY
Dec 1, 2007 — Intevac Inc. has released a 10-page brochure on its Mosir and MicroVista spectroscopy and imaging cameras, providing information on their performance capabilities and their integration with spectrometers, microscopes and optical mounts. It details...
PIEZO MOTORS
Dec 1, 2007 — PI (Physik Instrumente) LP has released a 22-page brochure titled “Ultrasonic Piezo Motors & Actuators for Automation,” which highlights its PILine piezo motors for high-speed actuation and positioning. The nonmagnetic systems range from...
OPTICAL FIBERS
Dec 1, 2007 — An addition to the “Wiley Survival Guides in Engineering and Science” series, the book Fiber Optic Essentials provides an overview of the technology. It discusses the development of low-loss optical fibers, which led to the application of lasers in...
STOCK OPTICS
Dec 1, 2007 — Anchor Optics has released its Fall 2007 catalog, which presents commercial-grade optics in standard formats that are available off-the-shelf. Designed for use in the VIS range, they are suitable for production and prototyping applications in the...
OPTICAL FIBER
Dec 1, 2007 — A four-page data sheet from Fiberguide Industries Inc. describes the company’s Superguide PCS silica fiber, which has a numerical aperture of 0.37 and plastic cladding that allows a high core-to-clad ratio. It notes that the fiber is particularly...
AA SPECTROMETERS
Dec 1, 2007 — Thermo Fisher Scientific Inc. has launched an online demonstration of its S Series atomic absorption (AA) spectrometers. Targeted to high-throughput elemental analysis laboratories in areas such as the environmental, petrochemical, metallurgical,...
SECURITY IMAGING
Dec 1, 2007 — Volume 8, No. 2 of “Imaging Insight,” a serial publication by Matrox Imaging, focuses on the company’s video capture, processing and display technology in the security industry. The downloadable document includes articles on customers who rely on...
OPTICAL CEMENTS
Dec 1, 2007 — Summers Optical offers a Web site that presents its full line of optical cements, adhesives and accessories in a descriptive catalog. The Secure Shopping Cart function for online ordering encompasses a product search engine that enables visitors to...
LINEAR GUIDES
Dec 1, 2007 — A new Web site from Thomson, a brand of Danaher Motion, is designed to help users specify the optimal linear guide for their application. It assists them in finding the appropriate round or profile rail guide for their machine requirements. Visitors...
MULTIMODE FIBER
Dec 1, 2007 — A data sheet titled “Multimode Mid Infrared Fiber” is available from IRphotonics. Downloadable from the company Web site, the document notes that the fiber has an extremely low hydroxyl ion content, providing high transmission efficiency from the UV...
WIDE BANDGAP LEDS
Dec 1, 2007 — The 225-page volume Wide Bandgap Light Emitting Materials and Devices addresses research on the materials and concepts for the devices. Sections cover III-nitride LEDs on Si, SiC, sapphire and other substrates, providing information on...
The Brain in Full Color
Dec 1, 2007 — Researchers from Harvard University in Cambridge, Mass., have developed a technique that can be used to visualize neuron connections by genetically labeling neurons with multiple colors of fluorescent proteins. The method works much like...
HAL Knows What You’ve Been Thinking
Dec 1, 2007 — Stanley Kubrick’s science fiction epic 2001: A Space Odyssey might not be so fictional after all. In the movie, the HAL 9000 supercomputer interacts with a team on a space mission as though it is a fellow member of the crew. It carries on...
Improving X-Ray Imaging with a Streak Camera
Dec 1, 2007 — When using x-rays to study what is very small and fleeting, researchers have had two choices: develop a short-pulse x-ray source, an approach with a potential price tag in the hundreds of millions, or develop a fast enough detector — cheaper, but...
Integrated Germanium-on-Silicon Detector Opens the Eye at 40 Gb/s
Dec 1, 2007 — While one company’s approach to integrated silicon-germanium photodetectors is described in detail in the feature on page 74 of this issue, Mario J. Paniccia and his Intel Corp. colleagues in Santa Clara, Calif., and in Jerusalem have taken a...
Crossovers Without Crosstalk
Dec 1, 2007 — In an electronic integrated circuit, tiny conductors connect the various components, and in a nanophotonic integrated circuit, photonic wires — slim submicron waveguides millimeters or centimeters in length — can serve the same function. But whereas...
850-nm Photodetector Can Be Integrated into Waveguide
Dec 1, 2007 — It’s no secret that electronics technology will not keep pace with Moore’s Law for much longer. Most experts look to photonics technologies to replace electronics and to allow the rapid growth to continue unabated. Although all-optical computers...
To Boldly Go Where No Sensor Has Gone Before
Dec 1, 2007 — Unlike electrical sensors, fiber optic sensors are impervious to electromagnetic interference, and they can be daisy-chained — connected in series — so that many sensors can be monitored simultaneously with a single detection instrument. But fiber...
Low-Loss Waveguide Developed for Terahertz Radiation
Dec 1, 2007 — Many investigators around the globe are exploring terahertz radiation for applications in remote sensing and imaging, and a good low-loss waveguide in this spectral range likely would facilitate many of these applications. Several approaches are...
Focusing Better with X-Rays
Dec 1, 2007 — Designing for fine-focusing helps when building telescopes and microscopes. However, the refractive optics used in x-ray versions of such instruments typically have had small numerical apertures, reducing performance. Compound kinoform lenses —...
Rear-Projection Helps New Avionics Displays Fit into Old Cockpits
Dec 1, 2007 — A plane’s cockpit is a tight space, full of displays that are rectangular, square, circular, trapezoidal or something else, all of which convey vital information to the pilot. Because most displays in use today are based on older technology,...
High-Brightness Multilayer Optical Film Light Source
Dec 1, 2007 — Liquid crystal on silicon projection systems are used in rear- and front-projection television, and in head-mounted displays, and they have the potential to be used in nanoprojectors. They are built on silicon wafers with a reflective plane and,...
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