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Proceedings Paper

Structured adaptive focusing through scattering media
Author(s): Diego Di Battista; Daniele Ancora; Haisu Zhang; Krystalia Lemonaki; Stella Avtzi; Stelios Tzortzakis; Marco Leonetti; Giannis Zacharakis
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Paper Abstract

The combined use of a wavefront modulator and a scattering medium forms an "opaque lens" which forces the light to focus tightly. The adaptive focus has the same shape as the correlation function of the original speckle pattern and it can be generated at defined positions with resolution up to hundreds of nanometers. We have demonstrated that manipulating the speckle pattern spatial components can structure the shape of the focus. Exploiting selectively spatial-frequencies from the speckle components we realized opaque lenses able to produce sub-correlation foci and Bessel beams.

Paper Details

Date Published: 15 March 2016
PDF: 7 pages
Proc. SPIE 9717, Adaptive Optics and Wavefront Control for Biological Systems II, 971719 (15 March 2016); doi: 10.1117/12.2211594
Show Author Affiliations
Diego Di Battista, Foundation for Research and Technology-Hellas (Greece)
Daniele Ancora, Foundation for Research and Technology-Hellas (Greece)
Haisu Zhang, Foundation for Research and Technology-Hellas (Greece)
Krystalia Lemonaki, Foundation for Research and Technology-Hellas (Greece)
Stella Avtzi, Foundation for Research and Technology-Hellas (Greece)
Stelios Tzortzakis, Foundation for Research and Technology-Hellas (Greece)
Marco Leonetti, Istituto Italiano di Tecnologia (Italy)
Giannis Zacharakis, Foundation for Research and Technology-Hellas (Greece)


Published in SPIE Proceedings Vol. 9717:
Adaptive Optics and Wavefront Control for Biological Systems II
Thomas G. Bifano; Joel Kubby; Sylvain Gigan, Editor(s)

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