Circular polarization memory effect in enhanced backscattering of light under partially coherent illumination

Details Circular polarization memory effect in enhanced backscattering of light under partially coherent illumination Circular polarization memory effect in enhanced backscattering of light under partially coherent illumination

2006-07-12

arxiv.org/abs/cond-mat/0607307v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages and 3 figures. It is in press for publication in Optics Letters

Scientific paper

We experimentally study the propagation of circularly polarized light in the sub-diffusion regime by exploiting enhanced backscattering (EBS, also known as coherent backscattering) of light under low spatial coherence illumination. We demonstrate for the first time that circular polarization memory effect exists in EBS over a large range of scatterers' sizes in this regime. We show that EBS measurements under low spatial coherence illumination from the helicity preserving and orthogonal helicity channels cross over as the mean free pathlength of light in media varies, and that the cross point indicates the transition from multiple to double scattering in EBS of light.

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