期刊
OPTICS AND LASER TECHNOLOGY
卷 146, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107538
关键词
Surface plasmon polariton; Femtosecond nondiffracting beam; Two-color photoemission electron microscopy
资金
- National Natural Science Foundation of China (NSFC) [62005022, 12004052, 91850109, 61775021]
- Department of science and technology of Jilin Province [20200201268JC, 20200401052GX]
- 111 Project of China [D17017]
- Key Laboratory of Ultrafast and Extreme Voilet Optics of Jilin Province, Ministry of Education Key Laboratory for CrossScale Micro and Nano Manufacturing, Changchun University of Science and Technology
A novel femtosecond nondiffracting surface plasmon polariton (SPP) beam emitter based on a dual-hole structure has been demonstrated and characterized using photoemission electron microscopy (PEEM). The two-color PEEM scheme offers a clear image of the nondiffracting SPP and experimentally determines the beam parameters, which are well reproduced by the finite-difference time-domain (FDTD) method. This work is important for further studying the high spatial and temporal characterization of the dynamic evolution of nondiffracting SPP beam.
Nondiffracting surface plasmon polariton (SPP) beam, which has unique self-healing and non-divergence properties, can be a good candidate in the next-generation on-chip devices and has attracted considerable attention. Here, a simple and broadband coupled femtosecond nondiffracting SPP beam emitter based on a dualhole structure has been demonstrated and characterized by photoemission electron microscopy (PEEM). The PEEM experiments show that, compared with the usual one-color PEEM, the two-color PEEM scheme offers a clear image of the nondiffracting SPP by effectively reducing the influence of the light-SPP interference field. As a result, the parameters of the nondiffracting SPP beam, such as the divergence angle, waist width, and propagation distance, are experimentally determined. The PEEM images of the nondiffracting SPP are well reproduced by the finite-difference time-domain (FDTD) method. This work plays a vital role in the further study of, e.g., high spatial and temporal characterization of the dynamic evolution of nondiffracting SPP beam.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据