Focusing light into desired patterns through turbid media by feedback-based wavefront shaping

PLUTO / PLUTO-2 Spatial Light Modulators
Adaptive Optics / Wavefront Control Turbid-/ Opaque Media /Multi Scattering
Published on:
Authors: Lipeng Wan and Ziyang Chen and Huiling Huang and Jixiong Pu
Abstract:

“We demonstrate that the focusing of light into desired patterns through turbid media can be realized using feedback-based wavefront shaping. Three desired focused patterns—a triangle, a circle, and a rectangle—are used as examples to study this ability. During the process of modulating scattered light, the Pearson’s correlation coefficient is introduced as a feedback signal. It is found that the speckle field formed by the turbid media gradually transforms into the desired pattern through a process of modulation of the input beam wave front. The proposed approach has potential applications in biomedical treatment and laser material processing.”

Restricted Access

Publication: Applied Physics B
Issue/Year: Applied Physics, B 122, 204 (2016)
DOI: 10.1007/s00340-016-6466-0
Link: https://doi.org/10.1007/s00340-016-6466-0

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