利用散射介质突破衍射限制技术的研究进展

杨. Y. Hong, 黄远辉 Huang Yuan-hui, 龚昌妹 Gong Chang-mei, 吴腾飞 Wu Teng-fei, 邵晓鹏 Shao Xiao-peng
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引用次数: 4

摘要

本文对衍射极限突破聚焦成像的研究现状进行了综述。本文首先介绍了该领域的研究背景和意义,并介绍了衍射极限突破成像的超分辨方法和散射介质的定义。其次,详细介绍了利用声学和电磁学中的散射特性进行信号压缩和聚焦的时间反转技术。提出了光学领域时间反转的实现方法。作为更好理解的基础,进一步阐述了在某些光学成像系统中插入散射介质板所带来的好处。然后,分析了串行反馈控制方法、光学相位共轭以及基于相位共轭的传输测量方法。介绍了在空间频域和空间频域开创性的传输矩阵测量方法,然后利用传输矩阵法制备了针对远场和宽场衍射极限突破成像的散射介质。最后,提出了利用散射介质突破衍射限制技术的进展和展望。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Advances on techniques of breaking diffraction limitation using scattering medium
This paper provides the state-of-art review to the research works in diffraction-limit breaking focusing and imaging. Firstly,the research background and significance of the research in this field are given,and the well-developed super-resolution methods and the definition of scattering media towards diffraction-limit breaking imaging are also introduced. Secondly,the time reversal technique utilizing the scattering property in acoustics and electromagnetics for signal compressing and focusing are specified. The realization method of time reversal in domain of optics is presented. As a foundation for better understanding,the advantages brought about by inserting a plate of scattering media into certain optical imaging system are further elaborated. Thirdly,this review analyzes the serial feedback controlling method,optical phase conjugation and the transmission measurement based on phase conjugation for finest focusing. The groundbreaking transmission matrix measurement in both spatial and spatial frequent domain is introduced,which is followed by the preparation of scattering media aiming at the far-field and wide-field diffraction-limit breaking imaging using transmission matrix method. Finally,the advances and prospect on techniques of breaking diffraction limication using scattering medium are preposed.
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