Stepped waveguide metamaterials as low-loss effective replica of surface plasmon polaritons.

Xu Qin, Yijing He, Wangyu Sun, Pengyu Fu, Shuyu Wang, Ziheng Zhou, Yue Li

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Article in Nanophotonics (Berlin, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Xu QinDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China.ORCID https://orcid.org/0000-0003-4568-2319

Yijing HeSchool of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China.

Wangyu SunDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China.

Pengyu FuDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China.

Shuyu WangDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China.

Ziheng ZhouCollege of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.

Yue LiDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China.ORCID https://orcid.org/0000-0001-9562-3136

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surface plasmon polaritons (SPPs) have attracted intensive attention for the unprecedented developments of light-matter interactions in optics and photonics, providing a feasible method for light confinement and transmission at a subwavelength scale. However, SPPs traditionally suffer from large losses due to the intrinsic dissipations and absorptions, which hinder further development and applications of SPPs. Here, we theoretically and experimentally investigate the concept of stepped waveguide metamaterials behaving as low-loss effective replicas of SPPs. The proposed structure without natural plasmonic material maintains the identical field configuration to that in regular SPP but avoids the inherent losses, outperforming regular low-loss SPP design with natural plasmonic materials on SPP propagation lengths. Furthermore, stepped waveguide metamaterial exhibits excellent compatibility in direct interconnections with arbitrary regular SPP and potentially represents a feasible route toward new SPP devices with low-loss advantages.

Indexed as

low-lossplasmonicsstepped waveguide metamaterialsurface plasmon polaritons

Identifiers

PMID39677588

DOI10.1515/nanoph-2022-0810

PMCPMC11636075

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.