摘要
在超振荡望远系统中,球差是影响其分辨本领的重要因素,其原因在于球差导致强度点扩散函数视场内产生高旁瓣,降低该系统的分辨力。本文分析了超振荡望远系统中球差对成像的影响,并确定了该系统对初级球差的容许范围。基于光学超振荡原理,利用线性规划的优化方法,设计超振荡望远系统,在532 nm工作波长下能够实现0.68倍瑞利判据的分辨力。构建针对超振荡望远系统球差的定量分析数学模型,该系统在均方根(root mean square,RMS)不超过0.041倍波长的初级球差干扰下,能分辨三缝目标物,同时分析了窄带工作波长对于该球差系统带来的成像影响。本文在光学测量、环境监视、超分辨望远等领域具有潜在的应用前景。
The spherical aberration is an important factor affecting the resolution power of super-oscillatory telescopic systems.The reason is that the spherical aberration leads to a high sidelobe in the field of view of the intensity point spread function,which reduces the resolution of the system.In this paper,the effect of the spherical aberration on imaging in a super-oscillatory telescopic system is analyzed and the allowable range of the primary spherical aberration is determined.Based on the principle of optical super-oscillatory and the optimization method of linear programming,a super-oscillatory telescopic system is designed.A resolution of 0.68 times the Rayleigh criterion can be achieved under a working wavelength of 532 nm.A mathematical model for quantitative analysis of the super-oscillatory telescopic system with the spherical aberration is established.The system can distinguish the three-slit target under the interference of the primary spherical aberration with a root mean square(RMS)no more than 0.041 times wavelength.The imaging effect of the narrow band working wavelength in the spherical aberration system is analyzed.This paper has potential applications in optical measurement,environmental monitoring,superresolution telescope,and other fields.
作者
柳少扬
杜文娟
焦蛟
姚纳
孙旭
倪磊
李文凯
Liu Shaoyang;Du Wenjuan;Jiao Jiao;Yao Na;Sun Xu;Ni Lei;Li Wenkai(School of Physics and Optoelectronics,Xiangtan University,Xiangtan,Hunan 411105,China;School of Aeronautics&Astronautics,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China;School of Manufacturing Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China;Assembly Center of Optical Engineering,Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China)
出处
《光电工程》
CAS
CSCD
北大核心
2023年第8期109-120,共12页
Opto-Electronic Engineering
基金
国家自然科学基金资助项目(62105276,62005038)。
关键词
超振荡
望远系统
球差
瑞利判据
super-oscillatory
telescopic system
spherical aberration
Rayleigh criterion
作者简介
柳少扬(1996-),男,硕士研究生,研究方向为光学成像。E-mail:552436528@qq.com;通信作者:杜文娟(1989-),女,博士,讲师,主要从事微纳米光学器件设计。E-mail:wenjuandu@xtu.edu.cn。
