Title: Two-photon imaging assisted by a dynamic random medium,
Abstract: Random scattering is usually viewed as a serious nuisance in optical imaging,
and needs to be prevented in the conventional imaging scheme based on
single-photon interference. Here we proposed a two-photon imaging scheme with
the widely used lens replaced by a dynamic random medium. In contrast to
destroying imaging process, the dynamic random medium in our scheme works as a
crucial imaging element to bring constructive interference, and allows us to
image an object from light field scattered by this dynamic random medium. On
the one hand, our imaging scheme with incoherent two-photon illumination
enables us to achieve super-resolution imaging with the resolution reaching
Heisenberg limit. On the other hand, with coherent two-photon illumination, the
image of a pure-phase object can be obtained in our imaging scheme. These
results show new possibilities to overcome bottleneck of widely used
single-photon imaging by developing imaging method based on multi-photon
interference.