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Enhancing Sensitivity at Higher-Order Exceptional Points

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ORLANDO, Fla., Sept. 1, 2017 — Active photonic molecule lasers that are non-uniformly pumped could provide a way to generate high sensitivity exceptional points in a systematic way. A research team at the University of Central Florida’s College of Optics & Photonics (CREOL) has demonstrated this concept. The team generated second order exceptional points using a coupled binary photonic molecule under parity-time symmetric conditions and extended this concept to higher-order exceptional points. The researchers generated a higher-order exceptional point by coupling three micro-rings made from a semiconductor laser...Read full article

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