JOEL WILLIAMS, ASSOCIATE EDITOR [email protected]NEW HAVEN, Conn., July 20, 2021 — Researchers at Yale University have developed a way to significantly increase the memory of speckle patterns, the very complex patterns that result from shining a laser light onto an opaque sheet, such as paper, biological tissue, or fog. The method has potential applications in biomedical imaging, optical metrology, and quantum information science. Speckle patterns can be compared to what happens when many drops of water fall on the surface of a puddle at the same time, generating a wave pattern that quickly becomes very complex. 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