Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation

doi:10.1117/12.2504224

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 信息光子学研究室

	Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation
	Ren, Liyong1 ; Zhuang, Bin 1,2; Zhao, Guangzhi 1,2; Xu, Chengfang 1,2; Geng, Yi 1,2; Chen, Hui 1,2; He, Zhengquan 1; Hu, Baowen1 ; Li, Yulin 1
	2018
会议日期	2018-07-08
会议地点	Beijing, China
卷号	10964
DOI	10.1117/12.2504224
英文摘要	Light wave becomes extremely distorted when it passes through a turbid medium. Indeed, the inhomogeneity of scattering medium and the mode dispersion of multimode optical fiber (MMF) always distort the propagation of light waves since they divert the propagation direction and disorder the spatial relationship of rays from the object. This becomes a big challenge for the applications of biological tissues endoscopic imaging. To overcome this problem, many methods based on computational optical imaging schemes have been reported and such a research has become a hot topic in recent years. These methods include the computational ghost imaging, the digital phase conjugation, the speckle correlation, the wavefront shaping, and the optical transmission matrix, etc. In this paper, we report our recent works on computational optical imaging based on digital wavefront modulation, which might be useful for the applications of endoscopy. On one hand, we propose a round-trip imaging method based on the optical transmission matrix of scattering medium, where the light wave is distorted twice. The object is recovered directly from the distorted output wave, while no scanning is required during the imaging process; one the other hand, by modulating the amplitude instead of the phase of the incident light wavefront, we propose a high-speed binary amplitude-only modulation method to focus and scan light through an MMF based on the digital micro-mirror device (DMD). This method can also be extended to focus and scan light at multiple planes along the axial direction by just modifying the input wavefront accordingly. © 2018 SPIE.
产权排序	1
会议录	Tenth International Conference on Information Optics and Photonics
会议录出版者	SPIE
语种	英语
ISSN号	0277786X;1996763X
ISBN号	9781510625792
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/31141]
专题	西安光学精密机械研究所_信息光子学研究室
作者单位	1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	Ren, Liyong,Zhuang, Bin,Zhao, Guangzhi,et al. Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation[C]. 见:. Beijing, China. 2018-07-08.