Superpixel-Based Complex Field Modulation Using a Digital Micromirror Device for Focusing Light through Scattering Media
You-Quan Jia1 , Qi Feng1 , Bin Zhang1 , Wei Wang2 , Cheng-You Lin1** , Ying-Chun Ding1**
1 College of Science, Beijing University of Chemical Technology, Beijing 1000292 China-Japan Friendship Hospital, Beijing 100029
Abstract ：We present a digital micromirror device (DMD) based superpixel method for focusing light through scattering media by modulating the complex field of incident light. Firstly, we numerically and experimentally investigate focusing light through a scattering sample using the superpixel methods with different target complex fields. Then, single-point and multiple-point focusing experiments are performed using this superpixel-based complex modulation method. In our experiment, up to 71.5% relative enhancement is realized. The use of the DMD-based superpixel method for the control of the complex field of incident light opens an avenue to improve the enhancement of focusing light through scattering media.
收稿日期: 2018-02-05
出版日期: 2018-04-30
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2018, Vol. 35 
