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Topological Approach Boosts Efficiency of On-Chip Frequency Combs

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COLLEGE PARK, Md., Sept. 29, 2021 — Using a topological platform — topology is a field of abstract math that underlies some of the most peculiar behaviors of modern materials — researchers at the University of Maryland (UMD) have proposed a method to make chip-sized frequency combs 10x more efficient. Postdoctoral researcher and lead author Sunil Mittal, Joint Quantum Institute Fellow Mohammad Hafezi, and their collaborators previously pioneered a micro-ring array with built-in topological protection and used it to supply single photons on demand and generate made-to-order entangled photons. The latest...Read full article

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