| HUANG Hui-ling,SUN Cun-zhi,CHEN Zi-yang,PU Ji-xiong.Light focusing through strongly scattering media by binary amplitude modulation[J].Optoelectronics Letters,2015,11(4):313-316 |
| Light focusing through strongly scattering media by binary amplitude modulation |
| Author Name | Affiliation | | HUANG Hui-ling | Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China | | SUN Cun-zhi | Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China | | CHEN Zi-yang | Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China | | PU Ji-xiong | Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China |
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| Abstract: |
| Based on the angular spectrum method and the circular Gaussian distribution (CGD) model of scattering media, we numerically simulate light focusing through strongly scattering media. A high contrast focus in the target area is produced by using feedback optimization algorithm with binary amplitude modulation. It is possible to form the focusing with one focus or multiple foci at arbitrary areas. The influence of the number of square segments of spatial light modulation on the enhancement factor of intensity is discussed. Simulation results are found to be in good agreement with theoretical analysis for light refocusing. |
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| This work has been supported by the National Natural Science Foundation of China (Nos.61178015 and 11304104). |
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