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Silicon Crystal Is Cheap, Simple

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Aaron J. Hand

Researchers in Canada and Spain have overcome the obstacles to develop a three-dimensional photonic crystal that can be easily manufactured on a large scale at a low cost. Fabricated with silicon, it meets the criteria needed for complete photonic bandgap formation. Such advances could ultimately help optical circuitry replace slower electronic circuits in chips. "The advantage of silicon is that the [photonic bandgap] can be centered at 1.5 µm, the wavelength of choice for telecommunications," said Sajeev John, a physics professor at the University of Toronto. "And it...Read full article

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    Published: August 2000
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