Temporal recompression through a scattering medium via a broadband transmission matrix
arXiv:1707.02146 · doi:10.1364/OPTICA.4.001289
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.
arXiv comment4 pages, 3 figures
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- Delivering Broadband Light Deep Inside Diffusive Media
- Coherent anti-Stokes Raman scattering through thick biological tissues by single wavefront shaping
- Certifying high-dimensional quantum channels