Universal optimal transmission of light through disordered materials

Details Universal optimal transmission of light through disordered materials Universal optimal transmission of light through disordered materials

2008-04-15

arxiv.org/abs/0804.2412v2

Phys. Rev. Lett. 101, 120601 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 4 figures. Accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.101.120601

We experimentally demonstrate increased transmission of light through strongly scattering materials. Wavefront shaping is used to selectively couple light to the open transport channels in the material, resulting in an increase of up to 44% in the total transmission. The results for each of several hundreds of experimental runs are in excellent quantitative agreement with random matrix theory. Extrapolating our measurements to the limit of perfect wavefront shaping, we find a universal transmission of 2/3, regardless of the thickness of the sample.

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