16 February 2018 Comparison of the efficiency of laser beam focusing through the scattering medium using 14- and 31-channel bimorph mirrors
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Abstract
We investigated the ability to focus laser beam (λ = 0.65 nm), propagated through the scattering suspension of polystyrene microspheres in distilled water, by means of two bimorph mirrors. Shack-Hartmann sensor was used to measure the local slopes of the Poynting vector, and the CCD camera was used to measure the intensity of the focal spot in the far-field. Correction efficiency of the two bimorph deformable mirrors — with 14 and 31 control channels — were compared. Numerical and experimental investigation of the focusing improvement of the laser beam propagated through the scattering medium was performed.
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Ilya Galaktionov, Ilya Galaktionov, Alexis Kudryashov, Alexis Kudryashov, Julia Sheldakova, Julia Sheldakova, Alexander Nikitin, Alexander Nikitin, Vadim Samarkin, Vadim Samarkin, "Comparison of the efficiency of laser beam focusing through the scattering medium using 14- and 31-channel bimorph mirrors", Proc. SPIE 10518, Laser Resonators, Microresonators, and Beam Control XX, 1051818 (16 February 2018); doi: 10.1117/12.2297080; https://doi.org/10.1117/12.2297080
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