Nanophotonic Coherent Imagers Are Super-accurate 3D Cameras
Is super accurate 3D scanning from a smartphone possible? It may be sson if this chip becomes mainstream...
Using an inexpensive silicon chip less than a millimeter square in size, the NCI (Nanophotonic Coherent Imager) provides the highest depth-measurement accuracy of any such nanophotonic 3-D imaging device. The work, done in the laboratory of Ali Hajimiri, the Thomas G. Myers Professor of Electrical Engineering in the Division of Engineering and Applied Science, is described in the February 2015 issue of Optics Express.
The micrometer-resolution image, taken from roughly half a meter (1.5 feet)
away, shows the height of a US penny at various points. Credit: Ali Hajimiri/Caltech