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

Ilya Galaktionov; Alexis Kudryashov; Julia Sheldakova; Alexander Nikitin

doi:10.1117/12.2256447

21 February 2017 Laser beam focusing through the scattering medium by means of adaptive optics

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin

Proceedings Volume 10073, Adaptive Optics and Wavefront Control for Biological Systems III; 100731L (2017) https://doi.org/10.1117/12.2256447
Event: SPIE BiOS, 2017, San Francisco, California, United States

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.

Citation Download Citation

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, and Alexander Nikitin "Laser beam focusing through the scattering medium by means of adaptive optics", Proc. SPIE 10073, Adaptive Optics and Wavefront Control for Biological Systems III, 100731L (21 February 2017); https://doi.org/10.1117/12.2256447

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available