Backscattering differential ghost imaging in turbid media

Istituto di Fotonica e Nanotecnologie-CNR, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy(Received 9 August 2012; published 19 February 2013)In this Letter we present experimental results concerning the retrieval of images of absorbing objectsimmersed in turbid media via differential ghost imaging (DGI) in a backscattering configuration. Themethod has been applied, for the first time to our knowledge, to the imaging of thin black objects locatedinside a turbid solution in proximity of its surface. We show that it recovers images with a contrast betterthan standard noncorrelated direct imaging, but equivalent to noncorrelated diffusive imaging. A simpletheoretical model capable of describing the basic optics of DGI in turbid media is proposed.