Going Plasmonic In Search Of Faster Computing, Communications Oct 27, 2009
The Plasmocom team took a novel approach, developing what they called dielectric-loaded surface plasmon polariton waveguides (DLSPPW). By patterning a layer of various polymer (polymethyl methacrylate) dielectic onto gold film supported by a glass substrate, they were able to achieve waveguides that were only 500 nanometres in size while extending the signal propagation. (Science Daily)
Physicists Seek To Keep Next-generation Colliders In One Piece Oct 10, 2009
" In his conclusions, Prof Jones suggests two approaches to mitigate for the effects of these extreme wake fields. One approach entails heavy damping, in which the majority of the wake field is sucked out of the collider by structures, known as waveguides, coupled to each cell in the accelerator. A second approach entails light damping - in which a small portion is removed - in combination with detuning the cell frequencies of the accelerator. Prof Jones adds: "Detuning the wake field can be... (Science Daily)
'Time telescope' could make internet faster Oct 1, 2009
The idea uses silicon waveguides as the lenses. A long, 10-GHz pulse containing bits of data and a much shorter laser pulse with no information pass through one of these waveguides. (BBC News -- Technology)
Optical Ethernet eyes low power, higher speeds Sep 17, 2009
84 Tbits/s using waveguides. The work required developing a 125-micron fibre cable, a mirror-less right-angle housing and a 12-channel electro-optical conversion module capable of 120 Gbits/s throughput with an 850nm laser. (EETimes)
Super-fast Computers Of The Future Sep 4, 2009
In order to achieve this, they are developing a raft of new metallic devices including tiny nanoscale sources of light, nanoscale waveguides to guide light along a desired route, and nanoscale detectors to pick up the light signals. Similar approaches may also help in the development of devices for faster internet services. (Science Daily)
Silk-based optical waveguides meet biomedical needs Sep 1, 2009
Optical waveguides are of particular interest because of their ability to manipulate and transport light in a controlled manner in a variety of configurations. In an article featured on the cover of Advanced Materials, researchers at Tufts University and the University of Illinois at Urbana-Champaign demonstrated a new method for fabricating silk-based optical waveguides that are biocompatible, biodegradable and can be readily functionalized with active molecules ... The Tufts-UIUC team... (EurekAlert!)
Nanoscale Lasers May Open Door To Faster Computers, More Reliable Internet Access Aug 6, 2009
Lasing in metal-insulator-metal sub-wavelength plasmonic waveguides. Optics Express, Vol. 17, Issue 13, pp. (Science Daily)
New Optical Forces Revealed Jul 28, 2009
Using advanced fabrication technologies, including DUV (Deep Ultraviolet) lithography and critical-point-drying, the researchers created two parallel waveguides on a silicon-on-insulator chip. The waveguides are freestanding, acting as movable strings ... By sending laser light through the waveguides the researchers generated optical forces between them. (Science Daily)
Tuning Into the 60GHz Spectrum Jul 25, 2009
Companies like Terabeam or BridgeWave are likely customers of the Vubiq waveguides, judging by , when Makleff bemoaned the high cost of non-silicon waveguides. As the world goes mobile, businesses like Vubiq that can help a company take advantage of cheap, unlicensed spectrum with lower-cost chips could change the economics of providing wireless broadband. (BusinessWeek)
BridgeWave's Big Shortwave Bet Jul 19, 2009
Makleff and Pasternak say their next step is to build more of the basic radio components, mainly waveguides and filters, out of silicon. That will slice costs by 90%, Makleff asserts. (Forbes -- Technology)
Optical Chip Detects Blood Molecules Jul 17, 2009
Each NEMOSLAB chip contains nine waveguides which are exposed to the sample at the same time and can be primed to detect different molecules ... An electronics package collects the signals from the waveguides and produces the results within a few minutes of the sample being introduced ... There are also questions to be resolved about the long-term stability of the molecular probes coating the waveguides. (Science Daily)
'Repulsive' Side To Light Force Could Control Nanodevices Jul 14, 2009
"This is not possible in free space it is only possible when light is confined in the nanoscale waveguides that are placed so close to each other on the chip.". "The light force is intriguing because it works in the opposite way as charged objects," said Wolfram Pernice, another postdoctoral fellow in Tang's group. (Science Daily)
America's Largest Convention Center Gets Coverage With Wireless Indoor Network by ExteNet Systems Jul 11, 2009
With more than three million annual convention goers, and a never-ending stream of facilities management and operations personnel, the wireless network was installed across all four convention buildings using the heating, ventilation and air conditioning (HVAC) systems as waveguides for the radio signals. "This was a complex installation that got great cooperation from Cricket's team and needed our joint design, procurement and network deployment expertise," said ExteNet's Vice President of... (PR Newswire)
Enablence Shipping New Products that Support Mobile Backhaul (Fiber-To-The-Cell Tower) and Integrate with T1 and E1 Services for High Bandwidth Business Applications May 28, 2009
Network and equipment designers around the world turn to Enablence for a variety of components and subsystems for access, metro and long-haul including transceivers, splitters, waveguides, optical channel monitors, multiplexers, ROADMs, switches, tunable dispersion compensators, and photodiodes. The Division serves over 120 system and subsystem developers and its products have been integrated in all major communications networks worldwide, serving tens of millions of subscribers. (CCNMatthews Press Releases)
Invisibility cloaks spread out May 23, 2009
This and other intricate structures, however, would be much more expensive to manufacture than Purdue's relatively simple gold and glass waveguides. The Purdue researchers claim that their waveguide cloaks the largest area yet at visible wavelengths, despite the fact that it was just 60 microns in diameter. (EETimes)
New 'Broadband' Cloaking Technology May 21, 2009
Waveguides represent established technology - including fiber optics - used in communications and other commercial applications ... Anisotropic Metamaterials Emulated by Tapered Waveguides: Application to Optical Cloaking. (Science Daily)
New 'broadband' cloaking technology simple to manufacture May 21, 2009
Waveguides represent established technology - including fiber optics - used in communications and other commercial applications. The research team used their specially tapered waveguide to cloak an area 100 times larger than the wavelengths of light shined by a laser into the device, an unprecedented achievement. (EurekAlert!)
Terahertz Waves Are Effective Probes For Integrated Circuit Heat Barriers May 13, 2009
15, 2008) Engineers took an early step toward building superfast computers that run on far-infrared light instead of electricity: They made waveguides -- the equivalent of wires -- that carried and bent this. (Mar. (Science Daily)
Method To Integrate Plasmon-based Nanophotonic Circuitry With State-of-the-art ICs Developed May 8, 2009
This is unlike conventional dielectric optical waveguides, which are limited by the wavelength of the light, and which therefore cannot be scaled down to tens of nanometers, which is the dimension of the components on today s nanoelectronic ICs ... To make such ICs that combine high-speed CMOS electronics and plasmonic circuitry, efficient and fast interfacing components are needed that couple the signals from plasmon waveguides to electrical devices ... As an important stepping stone to such... (Science Daily)
Important Breakthrough Towards Silicon-based All-optical Integrated Circuits Apr 19, 2009
A key element to enable all-optical processing is optical waveguides with highly nonlinear and ultra-fast performance ... This so-called silicon-organic hybrid (SOH) approach enables the fabrication of waveguides which pave the way towards all-optical processing, where photons do no longer need to be converted to electrons ... Based on these waveguides, all-optical demultiplexing of a 170. (Science Daily)
Research team reports breakthrough in optical silicon communication Apr 15, 2009
According to the researchers, the experiment proved the viability of SOH waveguides for all-optical processing of high-bandwidth telecommunication signals ... Hitherto, the data rate achieved by using bare silicon waveguides was limited to about 40 Gbit/s ... The ability of organic material used to homogenously fill the slot between the waveguides is a key feature of the deposition process. (EETimes)
OFC/NFOEC features breakthroughs in next-generation ethernet, metamaterials, networks Mar 18, 2009
Many photonic components such as modulators, detectors, switches, and waveguides can be fashioned from silicon, but the light source itself, the microlaser, is often assembled from elements residing in columns III and V of the periodic table, and these elements don't sit well on top of silicon ... The lasers are held in place over optical waveguides defined in silicon by an applied voltage until the attachment process is complete. (EurekAlert!)
New organic material may speed Internet access Mar 16, 2009
The material, which is composed of small organic molecules with high nonlinear optical susceptibilities, mimics the behavior of the snowflakes covering the bricks when it is deposited into the slot, or gap, that separate silicon waveguides that control the propagation of light beams on an integrated optical circuit. Just as the snowflakes, being tiny and mobile, fill every empty space between the two bricks, Biaggio says, the molecules completely and homogeneously fill the slot between the... (EurekAlert!)
Intel developing optical chip-to-chip interconnects Feb 13, 2009
11) describing progress in integrating the waveguides, detectors and modulators needed for integrating photonic interconnects directly onto CMOS chips. Ian YoungIntel Corp. Fellow. (EETimes)
Fujitsu Laboratories Develops CMOS-Based RF Transceiver Chip for 77GHz Automotive Radar Feb 12, 2009
Some examples are waveguides, coaxial lines, and microstrip lines, among others. Related press release: Fujitsu Laboratories Develops World's First CMOS-based Power Amplifier Operating at 77GHz --www. (JCN Network, Japan)
Molecular machines drive plasmonic nanoswitches Feb 12, 2009
"In the past, the plasmonic devices made were all passive." These devices were used as light sources, lenses and waveguides. Huang's switches are activated by a chemical process, however, this is not the optimal choice for a working circuit. (EurekAlert!)
Laser-sculpted Optical Devices For Future Giant Telescopes Feb 10, 2009
By changing the index of refraction along a continuous line, researchers have created hair-thin optical waveguides inside a material ... The ULI fabricated light channels still lose quite a bit of light, which prohibits the waveguides from being longer than a few tens of centimeters ... Moreover, the waveguides cannot be bent sharply, so devices have to be relatively large to allow for low-loss curves. (Science Daily)
