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Photonics West Showcase
$2 bill detail
Details from a $2 bill taken from a stand-off distance of one meter by the 'SAVI' prototype developed at Rice and Northwestern universities. The top image shows a speckle pattern created by firing a laser at the bill. The bottom shows the processed result after many such patterns were combined with a “synthetic aperture” program. Photo: Jason Holloway/Rice University.
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