ScienceDaily: Information Technology News |
- Computer model provides a new portrait of carbon dioxide
- Engineers efficiently 'mix' light at the nanoscale
- Hiding in plain sight: Elusive dark matter may be detected with GPS satellites
- New technique to help produce next generation photonic chips
| Computer model provides a new portrait of carbon dioxide Posted: 17 Nov 2014 02:45 PM PST An ultra-high-resolution computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe. Plumes of carbon dioxide in the simulation swirl and shift as winds disperse the greenhouse gas away from its sources. The simulation also illustrates differences in carbon dioxide levels in the northern and southern hemispheres and distinct swings in global carbon dioxide concentrations as the growth cycle of plants and trees changes with the seasons.  |
| Engineers efficiently 'mix' light at the nanoscale Posted: 17 Nov 2014 12:47 PM PST Researchers have engineered a nanowire system that could pave the way for photonic computing, combining two light waves to produce a third with a different frequency and using an optical cavity to amplify the intensity of the output to a usable level.  |
| Hiding in plain sight: Elusive dark matter may be detected with GPS satellites Posted: 17 Nov 2014 12:47 PM PST The everyday use of a GPS device might be to find your way around town or even navigate a hiking trail, but for two physicists, the Global Positioning System might be a tool in directly detecting and measuring dark matter, so far an elusive but ubiquitous form of matter responsible for the formation of galaxies.  |
| New technique to help produce next generation photonic chips Posted: 17 Nov 2014 09:58 AM PST Researchers have developed a new technique to help produce more reliable and robust next generation photonic chips. Photonic chips made from silicon will play a major role in future optical networks for worldwide data traffic. The high refractive index of silicon makes optical structures the size of a fraction of the diameter of a human hair possible. Squeezing more and more optical structures for light distribution, modulation, detection and routing into smaller chip areas allows for higher data rates at lower fabrication costs.  |
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