Sub-diffraction limit focusing through a complex medium by virtual Fourier filtering

Antoine Boniface; Mickael Mounaix; Baptiste Blochet; Rafael Piestun; Sylvain Gigan

doi:10.1117/12.2251864

22 February 2017 Sub-diffraction limit focusing through a complex medium by virtual Fourier filtering

Antoine Boniface; Mickael Mounaix; Baptiste Blochet; Rafael Piestun; Sylvain Gigan

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Proceedings Volume 10073, Adaptive Optics and Wavefront Control for Biological Systems III; 1007309 (2017) https://doi.org/10.1117/12.2251864
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

We have recently reported on a method to design at will the spatial profile of transmitted coherent light after propagation through a strongly scattering sample, exploiting wavefront shaping in combination with a transmission matrix approach. In this paper, we explore experimentally and theoretically the ability of this approach to generate foci whose full width at half maximum are smaller than the diffraction-limited speckle grain size, using (Bessels) beam variations implemented with virtual annular filters.

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Antoine Boniface, Antoine Boniface, Mickael Mounaix, Mickael Mounaix, Baptiste Blochet, Baptiste Blochet, Rafael Piestun, Rafael Piestun, Sylvain Gigan, Sylvain Gigan, } "Sub-diffraction limit focusing through a complex medium by virtual Fourier filtering", Proc. SPIE 10073, Adaptive Optics and Wavefront Control for Biological Systems III, 1007309 (22 February 2017); doi: 10.1117/12.2251864; https://doi.org/10.1117/12.2251864

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