典型文献
Theoretical and practical guide for an axial superresolved focus via Gouy phase steering
文献摘要：
Achieving an axial superresolved focus with a single lens by simply inserting a modulation mask in the pupil plane is preferred due to its compact configuration and general applicability.However,lack of a universal theoretical model to manifest the superresolved focusing mechanism vastly complicates the mask design and hinders optimal resolution.Here we establish an interference model and find out that the axial resolution closely relates to the Gouy phase gradient(GPG)at the focal point.Using a GPG tuning-based optimization approach,the axial res-olution of a ring-mask-modulated beam is readily improved to attain superresolved focal depth for multiple types of pupil function and polarization.In experiment,a focus with an axial resolution of 27％improved from the diffraction limit and 11％finer than the previously reported record is demonstrated for the radially polarized beam.In simulations,a spherical focus with 3D isotropic resolution and a superoscillation-like axial modulation behavior toward extremely high axial resolution is also presented.This approach can be applied for varied types of pupil function,wavelength,and polarization,and can be easily transferred to other traditional or superresolution microscopes to upgrade their axial resolution.
文献关键词：
中图分类号：
作者姓名：
XIAOWEI LIU;XIAOLAN XIA;ZHUOFAN YAO;TIANYUE ZHANG;MEILING JIANG;QING YANG;XIANGPING LI;AND YAOYU CAO
作者机构：
Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications,Institute of Photonics Technology,Jinan University,Guangzhou 510632,China;Research Center for Humanoid Sensing,Zhejiang Lab,Hangzhou 311121,China;International Research Center for Advanced Photonics,Zhejiang University,Hangzhou 311121,China;State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering
文献出处：
引用格式：
[1]XIAOWEI LIU;XIAOLAN XIA;ZHUOFAN YAO;TIANYUE ZHANG;MEILING JIANG;QING YANG;XIANGPING LI;AND YAOYU CAO-.Theoretical and practical guide for an axial superresolved focus via Gouy phase steering)[J].光子学研究（英文）,2022(11):2502-2512
A类：
superresolved,superoscillation,superresolution
B类：
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AB值：
0.557753
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