Looking around corners and through thin turbid layers in real time with scattered incoherent light

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Light fields in complex media: Mesoscopic scattering meets wave control (2017, background): “…work successfully demonstrated that the information stored in the scattering matrix of a disordered system can be used for turning a disordered sample into a perfect mirror (Katz et al., 2012) or into a high resolution spectral filter or spectrometer (Redding et al., 2013a; Small et al., 2012).”
Roadmap on wavefront shaping and deep imaging in complex media (2021, background): “Interestingly, the angular memory effect is present also in reflection from complex samples such as white painted walls, and in light propagation through multi-core fibers (figure 21(c)), opening the path to looking ‘around corners’ [2, 148], and to lensless diffraction-limited endoscopy [151] (see ”
Learning-based lensless imaging through optically thick scattering media (2019, background): “12 This can be phe-nomenologically interpreted as the control of the photons so that a certain amount of them can make their way through the scattering medium in the eigenchannels.”