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O: Fachverband Oberflächenphysik

O 52: Focussed session: Coherence and coherent control in nanophotonics and plasmonics II

O 52.1: Topical Talk

Wednesday, March 28, 2012, 16:45–17:15, MA 005

Spatio-temporal focusing of ultrashort pulses through scattering media — •Yaron Silberberg — Weizmann Institute of Science, Rehovot, Israel

When a short pulse is passed through an inhomogeneous medium, such as a biological tissue, it gets randomly scattered, resulting in a diffuse smeared-up light pattern in space and time. Scattering-induced distortions pose one of the major limitations in many applications, ranging from astronomy to microscopy. We have recently shown [1] that one can engineer an ultrashort optical pulse such that it will focus in both space and time inside a scattering medium. Moreover, we have discovered that one can correct both spatial and temporal distortions by manipulating only the spatial degrees of freedom of the incident wavefront using a spatial light modulator.

[1] O. Katz, E. Small, Y. Bromberg and Y. Silberberg, Nature Photonics 5, 372 (2011).