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arXiv · 1707.02146

Temporal recompression through a scattering medium via a broadband transmission matrix

Mickael Mounaix·Hilton B. de Aguiar·Sylvain Gigan
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Abstract

The transmission matrix is a unique tool to control light through a scattering medium. A monochromatic transmission matrix does not allow temporal control of broadband light. Conversely, measuring multiple transmission matrices with spectral resolution allows fine temporal control when a pulse is temporally broadened upon multiple scattering, but requires very long measurement time. Here, we show that a single linear operator, measured for a broadband pulse with a co-propagating reference, naturally allows for spatial focusing, and interestingly generates a two-fold temporal recompression at the focus, compared with the natural temporal broadening. This is particularly relevant for non-linear imaging techniques in biological tissues.

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Mickael Mounaix, Hilton B. de Aguiar, Sylvain Gigan. 2017-07-07. Temporal recompression through a scattering medium via a broadband transmission matrix. https://doi.org/10.1364/optica.4.001289

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