Wavefront Shaping and the Control of Scattering (Prof. Y. Silberberg)

In addition to the frequently encountered spatial distortions, multiple-scattering also randomly distorts the polarization state of the incident light, and its temporal and spectral characteristics. However, although multiple-scattering is a random process, it is a deterministic one and it can be undone. In recent years, high-resolution wavefront-shaping has emerged as a powerful approach to focus light through highly scattering, visually opaque samples. Wavefront shaping using spatial light modulators to modify the input field has been demonstrated to control and correct not only spatial distortions, but also temporal, spectral and polarization distortions in random media. I shall review the growing field of wavefront shaping and describe in particular schemes for imaging behind scattering layers and for seeing ‘around corners’.