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Built-in germanium lasers could make computer chips faster

As a laser material, Germanium together with Silicon could form the basis for innovative computer chips in which information would be transferred partially in the form of light. This technology would revolutionise data streaming within chips and give a boost to the performance of electronics.

Posted: Sep 10th, 2012

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Researchers make first all-optical nanowire switch

Researchers at the University of Pennsylvania have made an important advance in this frontier of photonics, fashioning the first all-optical photonic switch out of cadmium sulfide nanowires. Moreover, they combined these photonic switches into a logic gate, a fundamental component of computer chips that process information.

Posted: Sep 10th, 2012

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Semiconductors grown on graphene

Researchers at the Norwegian University of Science and Technology (NTNU) have patented and are commercializing GaAs nanowires grown on graphene, a hybrid material with competitive properties.

Posted: Sep 10th, 2012

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Developing science for environmental protection in the 21st century

A new report from the National Research Council finds that the foundation of science at the U.S. Environmental Protection Agency is strong, but the agency needs to continue to address numerous present and future challenges to maintain its science leadership and meet its expanding mandates.

Posted: Sep 9th, 2012

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Needle beam could eliminate signal loss in on-chip optics

An international team of researchers have demonstrated a new type of light beam that propagates without spreading outwards, remaining very narrow and controlled along an unprecedented distance. This "needle beam", as the team calls it, could greatly reduce signal loss for on-chip optical systems and may eventually assist the development of a more powerful class of microprocessors.

Posted: Sep 7th, 2012

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