2017/07/07 by Mickael Mounaix, Hilton B. de Aguiar, Sylvain Gigan · 1 citation
Physics and Astronomy · #physics.optics
paper · pdf · doi:10.1364/optica.4.001289
published as Optica, 4 (10), pp. 1289-1292 (2017) · 4 pages, 3 figures
arxiv created 2017/07/07 · arxiv updated 2017/10/16
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.