TY - GEN
T1 - Genetic algorithm for feedback-based wavefront shaping in optical imaging
AU - Haji Heidari Varnosfaderani, Mehdi
AU - Mozaffarzadeh, Moein
AU - Upputuri, Paul Kumar
AU - Pramanik, Manojit
N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
KW - Feedback-based methods
KW - Focusing
KW - Genetic algorithm
KW - Scattering
KW - Wavefront shaping
UR - http://www.scopus.com/inward/record.url?scp=85065450648&partnerID=8YFLogxK
U2 - 10.1117/12.2509520
DO - 10.1117/12.2509520
M3 - Conference contribution
AN - SCOPUS:85065450648
VL - 10878
T3 - PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2019
BT - Photons Plus Ultrasound
A2 - Wang, Lihong V.
A2 - Oraevsky, Alexander A.
PB - SPIE
T2 - Photons Plus Ultrasound: Imaging and Sensing 2019
Y2 - 3 February 2019 through 6 February 2019
ER -