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#124590
Thu 18 Oct 2012 06:18:PM
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Joined: Feb 2001
Posts: 381,904
Launch Director
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OP
Launch Director
Joined: Feb 2001
Posts: 381,904 |
Researchers have demonstrated integrated arrays of emitters of 'optical vortex beams' on a silicon chip. Contradicting traditional conception, light in such beams does not propagate in straight rays. Instead, its energy travels in a spiral fashion in a hollow conical beam shape. The beams therefore look very much like a vortex or cyclone, with its light rays 'twisted' either left-handed or right-handed. In theory, there is no limit to how twisted the light rays can be.  Source: Optical vortices on a chip: Integra...'optical vortex beams' on a silicon chip
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