Using digital micromirror devices for focusing light through turbid media

Sri Nivas Chandrasekaran; Hans Ligtenberg; Wiendelt Steenbergen; Ivo M. Vellekoop

doi:10.1117/12.2038893

7 March 2014 Using digital micromirror devices for focusing light through turbid media

Sri Nivas Chandrasekaran; Hans Ligtenberg; Wiendelt Steenbergen; Ivo M. Vellekoop;

Author Affiliations +

Proceedings Volume 8979, Emerging Digital Micromirror Device Based Systems and Applications VI; 897905 (2014) https://doi.org/10.1117/12.2038893
Event: SPIE MOEMS-MEMS, 2014, San Francisco, California, United States

Abstract

The holy grail of biomedical optical imaging is to perform microscopy deep inside living tissue. Unfortunately, biological tissue scatters light, which prevents the formation of a sharp focus. However, recently it was shown that wavefront shaping can be used to focus light through and inside turbid materials. So far, most experiments used liquid crystal devices, which are too slow to match the dynamics of perfused tissue. Since DMD technology is approximately 1000 times faster, it may bring wavefront shaping to in-vivo applications. We will compare analytically the performance of different methods for focusing light through scattering media with an intensity-only light modulator.

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Sri Nivas Chandrasekaran, Hans Ligtenberg, Wiendelt Steenbergen, Ivo M. Vellekoop, "Using digital micromirror devices for focusing light through turbid media", Proc. SPIE 8979, Emerging Digital Micromirror Device Based Systems and Applications VI, 897905 (7 March 2014); doi: 10.1117/12.2038893; https://doi.org/10.1117/12.2038893

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