基于数字全息术的近场成像与应用  

Digital Holography Based Near-field Imaging and Its Application

作　　者：戴思清 豆嘉真 张继巍[1,2,3] 邸江磊 赵建林[1,2,3] Dai Siqing;Dou Jiazhen;Zhang Jiwei;Di Jianglei;Zhao Jianlin(School of Physical Science and Technology,Northwestern Polytechnical University,Xi′an,Shaanxi 710129,China;Shaanxi Key Laboratory of Optical Information Technology,Xi′an,Shaanxi 710072,China;Ministry of Education Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions,Xi′an,Shaanxi 710072,China)

机构地区：[1]西北工业大学物理科学与技术学院,陕西西安710129 [2]陕西省光信息技术重点实验室,陕西西安710072 [3]超常条件材料物理与化学教育部重点实验室,陕西西安710072

出　　处：《光学学报》2020年第1期129-145,共17页Acta Optica Sinica

基　　金：国家自然科学基金国家重大科研仪器研制项目(61927810);国家自然科学基金委员会与中国工程物理研究院联合基金(U1730137);中央高校基本科研业务费专项资金(3102019ghxm018)。

摘　　要：近场是指局域在物体表面附近亚波长范围内的空间区域。倏逝波存在于近场区域,可利用其与物质的相互作用特性对位于近场区域的某些介质样品进行高分辨率成像,及对样品物性变化进行高灵敏度测量,其中,基于全内反射和表面等离子体共振的近场成像与测量方法已在许多领域获得广泛应用。将数字全息术与这类近场测量方法相结合,可进一步有效解决自近场区域反射光波的相位分布的高精度全场动态测量问题。重点介绍基于全内反射数字全息术和表面等离子体共振全息显微术的近场成像方法与测量应用研究进展。The near-field region is confined within a subwavelength range from the surface of an object.Evanescent waves exist in the near field,and by utilizing their interaction with matter,near-field high-resolution imaging as well as high sensitivity detection of physical changes of some specimen within the near field region can be realized.Near-field imaging and measurement methods based on total internal reflection(TIR)and surface plasmon resonance(SPR)have a wide range of applications in many fields.By combining digital holography with these near-field measurement methods,accurate,dynamic,and full-field measurements of the phase distribution of a light wave reflected from the near field region can be achieved.This article mainly reviews near-field imaging approaches and measurement applications based on TIR digital holography and SPR holographic microscopy.

关 键 词：成像系统 表面等离子体共振 全内反射 数字全息术 近场测量 

分 类 号：O439[机械工程—光学工程]