Using noise to enhance optical sensing
(PHYSorg.com Physics)

In conventional sensing methods, noise is always a problem, especially in systems that are meant to detect changes in their environment that are hardly bigger or even smaller than the noise in the system. Encountering this problem in his experiments with interacting photons, AMOLF physicist Said Rodriguez thought of a way around it. In an article that will be published in Physical Review Applied, he demonstrates how noise can be turned into a resource for optical sensing rather than a problem.