Abstract

We demonstrate that multiple scattering can be controlled via wavefront shaping in order to obtain a sub-diffraction limited focus at an arbitrary position (1) and the full-field dynamic sub-wavelength imaging (2). Due to the random structure of the highly scattering media there are no restrictions on the physical position of the focus giving the system a high degree of freedom. We first demonstrate that the multiple scattering can be used to steer and focus sub-diffraction limited light spots with arbitrary polarization (3) or wavelength (4) within its inhomogeneous structure.

© 2014 Japan Society of Applied Physics, Optical Society of America

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