Exploring the possibility to focus light through 2-D scattering media with phase only

We demonstrate that light can be directed through scattering media with only the phase (without the amplitude) of optical phase conjugation. By means of pseudospectral time-domain (PSTD) simulations, the wave characteristics of light trespassing a two-dimensional (2-D) macroscopic scattering medium is precisely accounted for. Specifically, research findings show that light can be directed into and focusing within a scattering medium, even without the exact amplitude—focusing of light through a scattering medium can be achieved with less stringent criteria. The research findings reported in this article opens up pragmatic possibilities to direct light through turbid medium in general.