Bringing the chaos in light sources under control

Noise is an issue in optical telecommunications. And findings means of controlling noise is key to physicists investigating light-emitting diodes or lasers. Now, an Italo-Iraqi team has worked on a particular type of light ...

NSA collected thousands of US communications (Update 2)

The National Security Agency declassified three secret court opinions Wednesday showing how in one of its surveillance programs it scooped up as many as 56,000 emails and other communications by Americans not connected to ...

'Fast, cheap' Internet satellites launched

The first four of 12 satellites in a new constellation to provide affordable, high-speed Internet to people in nearly 180 "under-connected" countries were blasted into Space on Tuesday.

'Nanotubes on a chip' could simplify optical power measurements

(Phys.org)—The National Institute of Standards and Technology (NIST) has demonstrated a novel chip-scale instrument made of carbon nanotubes that may simplify absolute measurements of laser power, especially the light signals ...

Physicists map spiraling light to harness untapped data capacity

Physicists with the Institute of Ultrafast Spectroscopy and Lasers (IUSL) at The City College of New York have presented a new way to map spiraling light that could help harness untapped data channels in optical fibers. Increased ...

Manipulating light at will

Electrical engineers at Duke University have developed a material that allows them to manipulate light in much the same way that electronics manipulate flowing electrons.

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