scholarly journals Polarization control of multiply scattered light through random media by wavefront shaping

2012 ◽  
Vol 37 (22) ◽  
pp. 4663 ◽  
Author(s):  
Yefeng Guan ◽  
Ori Katz ◽  
Eran Small ◽  
Jianying Zhou ◽  
Yaron Silberberg
Keyword(s):  
Random Media ◽  
Scattered Light ◽  
Polarization Control ◽  
Wavefront Shaping

scholarly journals A comparative study of optimization algorithms for wavefront shaping

2019 ◽  
Vol 12 (04) ◽  
pp. 1942002 ◽  
Author(s):  
Zahra Fayyaz ◽  
Nafiseh Mohammadian ◽  
M. Reza Rahimi Tabar ◽  
Rayyan Manwar ◽  
Kamran Avanaki
Keyword(s):  
Comparative Study ◽  
Spatial Light Modulator ◽  
Scattered Light ◽  
Optimization Algorithms ◽  
Estimation Method ◽  
Noise Levels ◽  
Light Modulator ◽  
Matrix Estimation ◽  
Phase Map ◽  
Wavefront Shaping

By manipulating the phase map of a wavefront of light using a spatial light modulator, the scattered light can be sharply focused on a specific target. Several iterative optimization algorithms for obtaining the optimum phase map have been explored. However, there has not been a comparative study on the performance of these algorithms. In this paper, six optimization algorithms for wavefront shaping including continuous sequential, partitioning algorithm, transmission matrix estimation method, particle swarm optimization, genetic algorithm (GA), and simulated annealing (SA) are discussed and compared based on their efficiency when introduced with various measurement noise levels.

scholarly journals Wavefront shaping of a Bessel light field enhances light sheet microscopy with scattered light

2014 ◽  
Author(s):  
J. Nylk ◽  
C. Mitchell ◽  
T. Vettenburg ◽  
F. J. Gunn-Moore ◽  
K. Dholakia
Keyword(s):  
Light Field ◽  
Scattered Light ◽  
Light Sheet ◽  
Light Sheet Microscopy ◽  
Wavefront Shaping

scholarly journals Broadband optical spin dependent reflection in self-assembled GaAs-based nanowires asymmetrically hybridized with Au

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Emilija Petronijevic ◽  
Alessandro Belardini ◽  
Grigore Leahu ◽  
Teemu Hakkarainen ◽  
Marcelo Rizzo Piton ◽  
...  
Keyword(s):  
Specular Reflection ◽  
Scattered Light ◽  
Semiconductor Nanostructures ◽  
Free Standing ◽  
Si Substrates ◽  
Polarization Control ◽  
Theoretical Predictions ◽  
Self Assembled ◽  
Insight Into ◽  
Good Agreement

AbstractHybridization of semiconductor nanostructures with asymmetric metallic layers offers new paths to circular polarization control and chiral properties. Here we study, both experimentally and numerically, chiral properties of GaAs-based nanowires (NWs) which have two out of six sidewalls covered by Au. Sparse ensembles of vertical, free-standing NWs were fabricated by means of lithography-free self-assembled technique on Si substrates and subsequently covered by Au using tilted evaporation. We report on optical spin-dependent specular reflection in the 680–1000 nm spectral range when the orientation of the golden layers follows the rule of extrinsic chirality. The analysis shows reflection peaks of the chiral medium whose intensity is dependent on the light handedness. We further propose a novel, time-efficient numerical method that enables a better insight into the far-field intensity and distribution of the scattered light from a sparse NW ensembles. The measurements done on three different samples in various orientations show good agreement with theoretical predictions over a broad wavelength range.

scholarly journals Ultrasonically encoded wavefront shaping for focusing into random media

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Jian Wei Tay ◽  
Puxiang Lai ◽  
Yuta Suzuki ◽  
Lihong V. Wang
Keyword(s):  
Random Media ◽  
Wavefront Shaping

scholarly journals Spectral control of broadband light through random media by wavefront shaping

2012 ◽  
Vol 37 (16) ◽  
pp. 3429 ◽  
Author(s):  
Eran Small ◽  
Ori Katz ◽  
Yefeng Guan ◽  
Yaron Silberberg
Keyword(s):  
Random Media ◽  
Wavefront Shaping ◽  
Spectral Control

Imaging of fluorescent yield and lifetime from multiply scattered light reemitted from random media

1997 ◽  
Vol 36 (10) ◽  
pp. 2260 ◽  
Author(s):  
D. Y. Paithankar ◽  
A. U. Chen ◽  
B. W. Pogue ◽  
M. S. Patterson ◽  
E. M. Sevick-Muraca
Keyword(s):  
Random Media ◽  
Scattered Light
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