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Silicon-based device may enable variety of photonic applications.
Efficient optical parametric oscillation occurs in a microring (central light blue ring) on a silicon chip, so that an infrared laser (900nm - green) coupled into the ring is transformed into light in both the visible (700nm - red) and telecom (1300nm - blue). Credit: Xiyuan Lu, NIST/University of Maryland, inspired by the Olympic Rings.
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