Abstract

Ghost imaging (GI) exploits the intensity correlations of light to reconstruct an object. A “ghost image” is obtained by correlating the total transmitted or reflected intensity of an illuminated object with the intensity of a highly-correlated reference beam which itself doesn’t interact with the object. Intriguingly, the spatial resolution of the image is provided by the non-interacting reference photons. Already pioneered two decades ago, GI studies have moved from predominant fundamental research to more application orientated developments still striving for a breakthrough application. The actual hot topics in the field of classical GI are the development of simplified computational schemes related to single-pixel sensing [1] and the search for new applications such as imaging of temporal objects by time-domain GI [2] as well as imaging in turbulent environments.

© 2017 IEEE