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Silicon Structures Offer Tunable Bandgap

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Richard Gaughans

Tunable photonic bandgap materials show promise as light-modulation devices for telecommunications, display and data storage applications, but existing solutions display either a high tunability but slow response speeds or a quick response but limited tunability. Now researchers at Pennsylvania State University have designed a photonic crystal that offers both high tunability and fast response. Assistant professor of materials science and engineering Venkatraman Gopalan and his colleague Sungwon Kim have designed an array structure consisting of two dielectric materials. They embedded...Read full article

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    Published: September 2001
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