Patent
Structural illumination-based random scattering optical beyond-diffraction-limit imaging system and method
Shao Xiaopeng,Wu Tengfei,Weijia Dai,Shi Huiming,Changmei Gong,Luo Qiuhua,Liu Fei,Du Juan,Peng Ligen,Huijuan Li +9 more
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TLDR
In this paper, a structural illumination-based random scattering optical beyond-diffraction-limit imaging system and method is presented, which is mainly to solve the problems of complicated techniques, long imaging time, difficult realization of system structure and low imaging resolution.Abstract:
The invention discloses a structural illumination-based random scattering optical beyond-diffraction-limit imaging system and method. The objective of the invention is mainly to solve the problems of complicated techniques, long imaging time, difficult realization of system structure and low imaging resolution of existing similar technologies. The imaging system includes a light source, a beam expander, a spatial light modulator, a lambda/4 wave plate, a beam expanding lens group, a light blocking plate, lenses, a random scattering medium, a convergence lens, and a CCD camera; light beams emitted by the light source are subjected to beam expansion of the beam expander and thereafter enter the spatial light modulator, so that 0-level light and +/-1-level light are obtained; the 0-level light and +/-1-level light pass through the lambda/4 wave plate, so that circularly polarized light can be obtained; after being subjected to beam expansion of the beam expanding lens group, the circularly polarized light reaches the light blocking plate, and the +/-1-level light is reserved; the +/-1-level light is interfered when passing through the lenses, and structural light can be generated, and an observation target can be illuminated; and the illuminated observation target enters the random scattering medium, and strong scattering occurs, and light beams enter the CCD camera through the convergence lens. The structural illumination-based random scattering optical beyond-diffraction-limit imaging system of the invention has the advantages of simple structure and high imaging resolution, and can be used for optical super resolution imaging.read more
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References
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Optical communication system
Atsushi Okamoto,Kazuyuki Morita +1 more
TL;DR: In this article, the authors present a method for the transmission of spatial-mode light emitted from an optical fiber, which is a multimode fiber, to pass through a photorefractive medium.
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