22 August 2014 SLM-based optical simulator for dynamic speckle analysis
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Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 928654 (2014) https://doi.org/10.1117/12.2063631
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal
Abstract
The phenomenon of dynamic speckle allows for non-invasive whole-field detection of physical or biological activity in objects through statistical description of laser speckle dynamics. Effective way to improve the statistical analysis is generation of controlled speckle patterns. SLM implementation of an optical simulator of dynamic speckle patterns is proposed by feeding a correlated sequence of 2D random phase distributions to the phase-only SLM. Atthevarying in space correlation radius of the phase fluctuations in the successive frames, the SLM produces regions of different activity on a screen under laser illumination. Feasibility of the proposed approach is proved both by simulation and experiment.
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Nataliya Berberova, Elena Stoykova, Branimir Ivanov, "SLM-based optical simulator for dynamic speckle analysis", Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 928654 (22 August 2014); doi: 10.1117/12.2063631; https://doi.org/10.1117/12.2063631
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