Please use this identifier to cite or link to this item:
Title: Genetic algorithm for feedback-based wavefront shaping in optical imaging
Authors: Mehdi, Haji Heidari Varnosfaderani
Mozaffarzadeh, Moein
Upputuri, Paul Kumar
Pramanik, Manojit
Keywords: Engineering::Chemical engineering
Wavefront Shaping
Genetic Algorithm
Issue Date: 2019
Source: Mehdi, H. H. V., Mozaffarzadeh, M., Upputuri, P. K., & Pramanik, M. (2019). Genetic algorithm for feedback-based wavefront shaping in optical imaging. Proceedings of SPIE - Photons Plus Ultrasound: Imaging and Sensing 2019. doi:10.1117/12.2509520
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.
DOI: 10.1117/12.2509520
Rights: © 2019 Society of Photo-optical Instrumentation Engineers (SPIE). All rights reserved. This paper was published in Proceedings of SPIE - Photons Plus Ultrasound: Imaging and Sensing 2019 and is made available with permission of Society of Photo-optical Instrumentation Engineers (SPIE).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Conference Papers

Files in This Item:
File Description SizeFormat 
108786G.pdf545.01 kBAdobe PDFThumbnail

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.