Superoscillation:from physics to optical applications  

作　　者：Gang Chen Zhong-Quan Wen Cheng-Wei Qiu 

机构地区：[1]College of Optoelectronic Engineering,Chongqing University,174 Shazheng Street,Chongqing 400044,China [2]Department of Electrical and Computer Engineering,National University of Singapore,4 Engineering Drive 3,Singapore 117583,Singapore

出　　处：《Light(Science & Applications)》2019年第1期688-710,共23页光（科学与应用)（英文版）

基　　金：financial support from China National Natural Science Foundation(61575031);National Key Basic Research and Development Program of China(Program 973)(2013CBA01700);Fundamental Research Funds for the Central Universities(106112016CDJXZ238826,106112016CDJZR125503);National Key Research and Development Program of China(2016YFED0125200,2016YFC0101100);financial support from the National Research Foundation,Prime Minister’s Office,Singapore under its Competitive Research Program(CRP award NRF-CRP15-2015-03).

摘　　要：The resolution of conventional optical elements and systems has long been perceived to satisfy the classic Rayleigh criterion.Paramount efforts have been made to develop different types of superresolution techniques to achieve optical resolution down to several nanometres,such as by using evanescent waves,fluorescence labelling,and postprocessing.Superresolution imaging techniques,which are noncontact,far field and label free,are highly desirable but challenging to implement.The concept of superoscillation offers an alternative route to optical superresolution and enables the engineering of focal spots and point-spread functions of arbitrarily small size without theoretical limitations.This paper reviews recent developments in optical superoscillation technologies,design approaches,methods of characterizing superoscillatory optical fields,and applications in noncontact,far-field and label-free superresolution microscopy.This work may promote the wider adoption and application of optical superresolution across different wave types and application domains.

关 键 词：OPTICAL OSCILLATION RESOLUTION 

分 类 号：TN2[电子电信—物理电子学]