关键词: 超振荡/
超分辨/
衍射器件/
亚波长
English Abstract
Optical super-oscillation and super-oscillatory optical devices
Chen Gang,Wen Zhong-Quan,
Wu Zhi-Xiang
1.Key Laboratory of Optoelectronic Technology and Systems, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
Fund Project:Project supported by the National Basic Research Program of China (Grant No. 2013CBA01700), the National Natural Science Foundation of China (Grant Nos. 61575031, 61177093), and the Program for New Century Excellent Talent in University, China (Grant No. NCET-13-0629).Received Date:29 March 2017
Accepted Date:24 May 2017
Published Online:05 July 2017
Abstract:The diffraction limit of traditional optical device greatly restricts the further development of optical super-resolution systems. It is a great challenge to overcome the diffraction limit at a device level, and achieve label-free far-field super-resolution imaging. Optical super-oscillation provides a new way to realize super-resolution since it allows the generation of arbitrary small structures in optical fields in the absence of evanescent waves. The researches of optical super-oscillation and super-oscillatory optical devices have grown rapidly in recent decades. Optical super-oscillation and super-oscillatory optical devices have been demonstrated theoretically and experimentally to show great potential applications in label-free far-field optical microscopy, far-field imaging and high-density data storage. In this paper, we gives a broad review of recent development in optical super-oscillation and super-oscillatory optical devices, including basic concepts, design tools and methods, testing techniques for super-oscillatory optical field, and their applications.
Keywords: super-oscillation/
super-resolution/
diffractive devices/
sub-wavelength
