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Proceedings Paper

Laser beam focusing through the scattering medium by means of adaptive optics
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Paper Abstract

Laser beam propagation through the scattering suspension of polystyrene microspheres in distilled water was studied. The distorted laser beam was analyzed by both Shack-Hartmann sensor and CCD camera. The measured local slopes of the Poynting vector were compensated for by means of bimorph deformable mirror with 14 electrodes in order to increase the intensity of the focal spot in the far-field. Three different techniques for laser beam focusing were implemented and compared: LSQ fit-error minimization by Shack-Hartmann sensor, Hill-climbing optimization by Shack-Hartmann sensor and Hill-climbing optimization by far-field CCD camera.

Paper Details

Date Published: 21 February 2017
PDF: 8 pages
Proc. SPIE 10073, Adaptive Optics and Wavefront Control for Biological Systems III, 100731L (21 February 2017); doi: 10.1117/12.2256447
Show Author Affiliations
Ilya Galaktionov, Moscow Polytechnic Univ. (Russian Federation)
Alexis Kudryashov, Institute of Geosphere Dynamics (Russian Federation)
V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Moscow Polytechnic Univ. (Russian Federation)
Julia Sheldakova, Institute of Geosphere Dynamics (Russian Federation)
Alexander Nikitin, Institute of Geosphere Dynamics (Russian Federation)

Published in SPIE Proceedings Vol. 10073:
Adaptive Optics and Wavefront Control for Biological Systems III
Thomas G. Bifano; Joel Kubby; Sylvain Gigan, Editor(s)

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