Comparison of the efficiency of laser beam focusing through the scattering medium using 14- and 31-channel bimorph mirrors

Ilya Galaktionov; Alexis Kudryashov; Julia Sheldakova; Alexander Nikitin; Vadim Samarkin

doi:10.1117/12.2297080

16 February 2018 Comparison of the efficiency of laser beam focusing through the scattering medium using 14- and 31-channel bimorph mirrors

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin, Vadim Samarkin

Author Affiliations +

Proceedings Volume 10518, Laser Resonators, Microresonators, and Beam Control XX; 1051818 (2018) https://doi.org/10.1117/12.2297080
Event: SPIE LASE, 2018, San Francisco, California, United States

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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Citation Download Citation

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin, and 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); https://doi.org/10.1117/12.2297080

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