22 February 2017 Sub-diffraction limit focusing through a complex medium by virtual Fourier filtering
Author Affiliations +
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.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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

Back to Top