A whole new light on graphene metamaterials


Long-wavelength terahertz light is invisible — it’s at the farthest end of the far infrared — but it’s useful for everything from detecting explosives at the airport to designing drugs to diagnosing skin cancer. Now,…

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Down to the wire


Solar or photovoltaic cells represent one of the best possible technologies for providing an absolutely clean and virtually inexhaustible source of energy to power our civilization. However, for this dream to be realized, solar cells…

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