Tightly focused longitudinal nano-interferometric field structure  

Tightly focused longitudinal nano-interferometric field

作　　者：LI Junyi WANG Xujian SHAN Xinzhi DING Sitong 

机构地区：[1]Shanghai Rocksensor Automation Co.,Ltd,Shanghai 201109,China [2]School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

出　　处：《自动化与仪器仪表》2023年第4期62-65,共4页Automation & Instrumentation

摘　　要：In this paper,a specially designed Pancharatnam–Berry(PB)phase is used to fuse two-dimensional Airy-like beams to adjust and construct a new nano-interferometric field structure.The calculation results show that this nano-interferometric structure is highly dependent on the PB phase parameterγand the ratio of pupil radius to beam waistβ.The flexible setting of the nano-field with adjustable size,spacing and internal details can be realized.In addition,we found that the longitudinal field components always keep a clear pattern.Hence,it is expected that the longitudinal field components can be applied to each application scene separately.

关 键 词：Pancharatnam-Berry(PB)phase Airy-like beams nano-interferometric field structure 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]