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University of Wisconsin-Madison articles

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An easy-to-make curved image sensor

An easy-to-make curved image sensor
Cellphone users rely on their phone cameras to capture virtually every aspect of their lives. Far too often, however, they end up with photos that are a sub-par reproduction of reality. While operator error sometimes comes into play, the camera’s digital image sensor is the most likely culprit. A flat, silicon surface, it just can’t process images captured by a curved camera lens as well as the similarly curved image sensor — otherwise known as the retina — in a human eye.
24th November 2017

Nanoscale photodetector increases performance without adding bulk

Nanoscale photodetector increases performance without adding bulk
A team of engineers from the University of Wisconsin–Madison and the University at Buffalo have developed a nanoscale photodetector that combines a unique fabrication method and light-trapping structures. The researchers — electrical engineering professors Zhenqiang (Jack) Ma and Zongfu Yu at UW–Madison and Qiaoqiang Gan at UB — described their device, a single-crystalline germanium nano-membrane photodetector on a nano-cavity substrate, in the journal Science Advances.
10th July 2017

Cameras will be able to capture pictures around corners

Cameras will be able to capture pictures around corners
The Morgridge Institute for Research and University of Wisconsin-Madison researchers are working to optimise a camera capable of a slick optical trick: Snapping pictures around corners. The imaging project, supported by a new $4.4 million grant from the U.S. Defense Department’s Advanced Research Projects Agency (DARPA), will work over four years to explore the limitations and potential applications of scattered-light technology that can recreate scenes outside human line of sight.
29th July 2016

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