Shape Measurement by Means of Phase Retrieval using a Spatial Light Modulator

2010 ◽  
Author(s):  
Mostafa Agour ◽  
Philipp Huke ◽  
Christoph v. Kopylow ◽  
Claas Falldorf ◽  
Pramod K. Rastogi ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Shape Measurement ◽  
Light Modulator

Cross-talk compensation of a spatial light modulator for iterative phase retrieval applications

2016 ◽  
Vol 55 (4) ◽  
pp. 802 ◽  
Author(s):  
Pierre Gemayel ◽  
Bruno Colicchio ◽  
Alain Dieterlen ◽  
Pierre Ambs
Keyword(s):  
Cross Talk ◽  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator

Characterization of a spatial light modulator and its application in phase retrieval

2009 ◽  
Vol 48 (20) ◽  
pp. 4003 ◽  
Author(s):  
C. Kohler ◽  
F. Zhang ◽  
Wolfgang Osten
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator

The effect of misalignment in phase retrieval based on a spatial light modulator

2011 ◽  
Author(s):  
Mostafa Agour ◽  
Claas Falldorf ◽  
Christoph von Kopylow ◽  
Ralf B. Bergmann
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator

Enhanced intensity variation for multiple-plane phase retrieval using a spatial light modulator as a convenient tunable diffuser

2016 ◽  
Vol 41 (10) ◽  
pp. 2161 ◽  
Author(s):  
Percival F. Almoro ◽  
Quang Duc Pham ◽  
David Ignacio Serrano-Garcia ◽  
Satoshi Hasegawa ◽  
Yoshio Hayasaki ◽  
...  
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Intensity Variation ◽  
Light Modulator ◽  
Multiple Plane

Automated compensation of misalignment in phase retrieval based on a spatial light modulator

2011 ◽  
Vol 50 (24) ◽  
pp. 4779 ◽  
Author(s):  
Mostafa Agour ◽  
Claas Falldorf ◽  
Christoph v. Kopylow ◽  
Ralf B. Bergmann
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator

Vortex Phase Retrieval for Detecting System Aberration Based on Liquid Crystal Spatial Light Modulator

2014 ◽  
Vol 51 (8) ◽  
pp. 080701
Author(s):  
吴华钦 Wu Huaqin ◽  
郑明杰 Zheng Mingjie ◽  
李志芳 Li Zhifang ◽  
陈大强 Chen Daqiang ◽  
李晖 Li Hui
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Light Modulator ◽  
Vortex Phase

Phase retrieval by means of a spatial light modulator in the Fourier domain of an imaging system

2010 ◽  
Vol 49 (10) ◽  
pp. 1826 ◽  
Author(s):  
Claas Falldorf ◽  
Mostafa Agour ◽  
Christoph v. Kopylow ◽  
Ralf B. Bergmann
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Imaging System ◽  
Fourier Domain ◽  
Light Modulator

scholarly journals Spatial light modulator aided noninvasive imaging through scattering layers

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Saswata Mukherjee ◽  
A. Vijayakumar ◽  
Joseph Rosen
Keyword(s):  
Spatial Light Modulator ◽  
Phase Retrieval ◽  
Imaging System ◽  
Digital Camera ◽  
Retrieval Algorithm ◽  
Light Modulator ◽  
Incoherent Light ◽  
Light Pattern ◽  
Spread Function ◽  
Phase Retrieval Algorithm

AbstractWe propose and demonstrate a new imaging technique to noninvasively see through scattering layers with the aid of a spatial light modulator (SLM). A relay system projects the incoherent light pattern emitting from the scattering layer onto the SLM. Two coded phase masks are displayed, one after another, on the SLM to modulate the projected scattered field and the two corresponding intensity patterns are recorded by a digital camera. The above procedure helps to achieve two goals. Firstly, since the coded phase masks are digitally synthesized, the point spread function of the imaging system can be engineered such that the image retrieval becomes more reliable. Secondly, the two recorded intensity patterns are subtracted one from the other and by that the background noise of the recovered image is minimized. The above two advantages along with a modified phase retrieval algorithm enable a relatively easier and accurate convergence to the image of the covered object.

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