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Genetic algorithm for feedback-based wavefront shaping in optical imaging
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Paper Abstract

Traditional optical devices rely on light propagation along a straight path. However, when the light propagates through a blurred medium, its direction get scattered by microscopic particles. This inhomogeneous distortion results in a diffused focus point. Light scattering is one of the main limitations for the optical imaging. This limitation decreases the resolution in depth. Therefore, the ability of focusing light at a desired position has a huge worthwhile for applications of optical imaging. Over the past few years, it was shown that light can be focused inside an object even with strong scattering particles, just by shaping the wavefront of the incident beam. The most successful approaches for light focusing at the presence of scattering objects are feedback-based optical wavefront shaping. In this paper, an iterative feedback-based wavefront shaping is proposed. It uses the genetic algorithm. In summary, we aim to obtain a high intensity in the focus point with fewer steps in iteration while increase the signal-to-noise. The simulations results show that both the above mentioned goals are achieved using the proposed method.

Paper Details

Date Published: 27 February 2019
PDF: 6 pages
Proc. SPIE 10878, Photons Plus Ultrasound: Imaging and Sensing 2019, 108786G (27 February 2019); doi: 10.1117/12.2509520
Show Author Affiliations
Mehdi Haji Heidari Varnosfaderani, Tarbiat Modares Univ. (Iran, Islamic Republic of)
Moein Mozaffarzadeh, Delft Univ. of Technology (Iran, Islamic Republic of)
Tarbiat Modares Univ. (Iran, Islamic Republic of)
Paul Kumar UpputurI, Nanyang Technological Univ. (Singapore)
Manojit Pramanik, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 10878:
Photons Plus Ultrasound: Imaging and Sensing 2019
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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