Controlling Light Through Optical Disordered Media : Transmission Matrix Approach
TLDR
In this article, the authors measure the monochromatic transmission matrix (TM) of an optical multiple scattering medium using a spatial light modulator together with a phase-shifting interferometry measurement method.Abstract:
We experimentally measure the monochromatic transmission matrix (TM) of an optical multiple scattering medium using a spatial light modulator together with a phase-shifting interferometry measurement method. The TM contains all information needed to shape the scattered output field at will or to detect an image through the medium. We confront theory and experiment for these applications and we study the effect of noise on the reconstruction method. We also extracted from the TM informations about the statistical properties of the medium and the light transport whitin it. In particular, we are able to isolate the contributions of the Memory Effect (ME) and measure its attenuation length.read more
Citations
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Shaping the propagation of light in complex media
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High-resolution non-line-of-sight imaging employing active focusing
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Learning the matrix of few-mode fibers for high-fidelity spatial mode transmission
TL;DR: In this paper , a deep learning-based mode transformer network is proposed for the measurement of the complex transmission matrix (TM) describing the light propagation behavior of fiber, which can be obtained by performing mode decomposition (MD) of the spatial modes at the output of the fiber.
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Long-distance pattern projection through an unfixed multimode fiber with natural evolution strategy-based wavefront shaping.
TL;DR: It is revealed that faster convergence and better robustness can be achieved compared with existing phase control algorithms, and a new fitness function based on cosine similarity is adopted for the algorithm, leading to higher focusing contrast without sacrificing similarity to the target pattern.
References
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