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Crystal Could Improve Optical Communications

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Michael D. Wheeler

Researchers at Sandia National Laboratories and the Massachusetts Institute of Technology in Cambridge have fabricated a two-dimensional photonic crystal that controls light in three directions. The work raises the prospect of a single chip housing broadband optical communication, optical signal routing and switching. Constructed of gallium arsenide, the crystal resembles cheesecloth. It effectively blocks most light waves; only those in a select band of wavelengths can navigate through it. By varying the spacing and size of the holes, the researchers can control which wavelengths of...Read full article

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    Published: March 2001
    Basic ScienceindustrialResearch & TechnologyTech Pulse

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