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R_Colin_Johnson
Member Since: June 18, 2009
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posted in September 2009

14 items
Controller boosts telescope output by damping noise
News & Analysis  
9/30/2009   1 comment
A CCD controller devised at the University of Montreal amplifies the output from optical instruments like telescopes and endoscopes while supressing noise for a tenfold net boost.
Exciton transistors inch toward commercialization
News & Analysis  
9/29/2009   Post a comment
Researchers have refined the materials mix and architecture of excitonic transistors to permit economical operation at 125 degrees Kelvin, which they say is attainable with inexpensive liquid nitrogen.
Intel vows to make TV personal, social, optical
News & Analysis  
9/25/2009   Post a comment
In Intel's view of the future, television will be ubiquitous on both mobile and home-viewing devices, offering personalized programming, social media capabilities, 3-D and more--all running over Intel's Light Peak optical interconnect technology.
Nanotubes pack promise of battery-free energy storage
News & Analysis  
9/23/2009   Post a comment
Macroscopic springs, based on microscopic carbon nanotubes, could power devices in harsh environments, or for extended periods, where batteries are impractical or too short-lived.
Phase-changing thermal management to prolong LED lifespan
News & Analysis  
9/21/2009   Post a comment
Honeywell material changes phase from hard solid to soft liquid-like consistency that increases thermal conductivity to direct heat away from light-emitting diode (LED) arrays used in display backlights and for solid state lighting.
Strain engineering aims for room-temp superconducting
News & Analysis  
9/18/2009   Post a comment
The government lab has created structural irregularities called phase inhomogeneity in correlated electron materials that could someday enable colossal magnetoresistance, and perhaps even room-temperature superconductivity.
Graphene mixes it up with GaAs
News & Analysis  
9/17/2009   Post a comment
Pure carbon atoms based on depositing graphene on gallium arsenide wafers could yield the next generation of high performance semiconductors, according to German researchers.
Nanotubes sorted, aligned to reduce friction
News & Analysis  
9/16/2009   Post a comment
An international team studying the effects of friction on carbon nanotubes claims that it can be cut in half when carbon nanotubes are aligned lengthwise rather than transversely.
Electronic nose knows, warning with color-changing badge
News & Analysis  
9/14/2009   Post a comment
A sensor akin to an electronic nose could be used to detect toxic industrial chemicals and be as commonplace as radiation badges around nuclear facilities.
'Tree power' attempts to harvest bio-energy
News & Analysis  
9/11/2009   1 comment
University of Washington (Seattle) researchers recently demonstrated a nanoscale "boost converter" that integrates the ultra-low-voltage potentials generated by trees.
Startup pioneers carbon-based FPGAs
News & Analysis  
9/9/2009   6 comments
Carbon-based memory architectures promise to revolutionize FPGA design, according to the founder of a chip startup.
Digital dual-axis MEMS gyro debuts
Product News  
9/9/2009   Post a comment
As mobile devices integrate higher-resolution cameras, adding relatively inexpensive MEMS gyroscopes is now an option, according to one manufacturer.
Graphene made magnetic with hydrogen coating
News & Analysis  
9/3/2009   Post a comment
Graphone, a new magnetic version of carbon monolayers called graphene, could enable a new breed of carbon spintronic devices, researchers claim.
Nanoscale laser harnesses plasmons
News & Analysis  
9/1/2009   Post a comment
What is being billed as the world's smallest semiconductor laser boasts a 5-nm active region that is 20 times smaller than the wavelength of the light it emits, according to university researchers.


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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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