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phys
Optical computing—using light rather than electricity to perform calculations—could pay dividends for both conventional computers and quantum computers, largely hypothetical devices that could perform some types of computations exponentially faster... 
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From
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(Phys.org) —Researchers are developing a new type of semiconductor technology for future computers and electronics based on 'two-dimensional nanocrystals' layered in sheets less than a nanometer thick that could replace today's transistors.
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(PhysOrg.com) -- ETH Zurich physicists, in collaboration with colleagues at universities in Switzerland and abroad, have made a breakthrough in the manufacture of monolithic semiconductor structures on silicon.
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From
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There's big news in the world of tiny things.
New research led by University of Cincinnati physics professors Howard Jackson and Leigh Smith could contribute to better ways of harnessing solar energy, more effective air quality sensors or even stronger security measures against biological weapons such as anthrax. And it all starts with something that's 1,000 times thinner than the typical human hair – a semiconductor nanowire.
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Des chercheurs de l'université d'Erlangen-Nuremberg (Allemagne) viennent de trouver un moyen de donner des propriétés de véritable semi-conducteur au graphène. Cette découverte pourrait bien être le début du déclin de l'ère du tout silicium.
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Optical computing—using light rather than electricity to perform calculations—could pay dividends for both conventional computers and quantum computers, largely hypothetical devices that could perform some types of computations exponentially faster than classical computers.
Read more at: http://phys.org/news/2013-07-mit-all-optical-transistor.html#jCp