Ultralow loss graphene-based hybrid plasmonic waveguide with deep-subwavelength confinement

He, Xiaoyu; Ning, Tigang; Lu, Shaohua; Jiao, Z.; Li, Jing; Li, Rujiang; Pei, Li

doi:10.1364/oe.26.010109

Cited by 44 publications

(32 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kuznetsov E V et al 33 demonstrated the suppression of crosstalk between two dielectric nanowaveguides by placing an auxiliary linear waveguide between loaded waveguides spaced by one wavelength. He X et al 34 proposed an ultralow loss graphene-based hybrid plasmonic waveguide with lower crosstalk, which is much better than those reported in hybrid plasmonic waveguides 31 . Moreover, there are other plasmonic waveguides based on crosstalk researches have been published [35][36][37][38][39][40][41][42][43][44] .…”

Section: Introductionmentioning

confidence: 93%

A review of crosstalk research for plasmonic waveguides

Ma¹,

Zeng²,

Yang³

et al. 2019

Opto-Electronic Advances

View full text Add to dashboard Cite

Plasmonic waveguides, as a competitive candidate, have been widely studied in rapid developing photonic integrated circuits (PICs) and optical interconnection fields. However, crosstalk between plasmonic waveguides is a critical issue that has to be considered in practice. Actually, crosstalk dominates the ultimate integration density of the planar photonic circuits. This paper reviews the recent research work on evaluation methods and crosstalk suppression approaches of plasmonic waveguides. Three crosstalk evaluation methods based on comparison of specific parameters of waveguides have been summarized. Furthermore, four specific approaches to reduce crosstalk have been illustrated as two categories according to their impacts on waveguide performances and the whole circuit. One means of crosstalk suppression is changing the placement of waveguides, which could maintain the transmission characteristics of the original waveguide. The other means is inserting medium, which has the advantage of occupying smaller space compared to the first method. Consequently, to suppress crosstalk between plasmonic waveguides, one should choose suitable approach.

show abstract

Section: Introductionmentioning

confidence: 93%

A review of crosstalk research for plasmonic waveguides

Ma¹,

Zeng²,

Yang³

et al. 2019

Opto-Electronic Advances

View full text Add to dashboard Cite

show abstract

“…A novel hybrid plasmonic waveguide [76] based on the graphene-coated V-groove and the GCNWs was also proposed. In the literature, a lot of promising graphene-based hybrid waveguides [77][78][79][80][81][82][83][84][85][86] were analyzed in THz and mid-infrared bands. Here, we mainly focus on the GCNWs and GCNW-based hybrid waveguide, thus they will not be covered here.…”

Section: Gcnw-based Hybrid Waveguidesmentioning

confidence: 99%

Graphene-Coated Nanowire Waveguides and Their Applications

Teng

Wang

2020

Nanomaterials

View full text Add to dashboard Cite

In recent years, graphene-coated nanowires (GCNWs) have attracted considerable research interest due to the unprecedented optical properties of graphene in terahertz (THz) and mid-infrared bands. Graphene plasmons in GCNWs have become an attractive platform for nanoscale applications in subwavelength waveguides, polarizers, modulators, nonlinear devices, etc. Here, we provide a comprehensive overview of the surface conductivity of graphene, GCNW-based plasmon waveguides, and applications of GCNWs in optical devices, nonlinear optics, and other intriguing fields. In terms of nonlinear optical properties, the focus is on saturable absorption. We also discuss some limitations of the GCNWs. It is believed that the research of GCNWs in the field of nanophotonics will continue to deepen, thus laying a solid foundation for its practical application.

show abstract

“…Later, Wan et al [53] proposed a dielectric-loaded graphene groove waveguide, and a typical propagation length of about 37.8 µm and mode area of about 52 µm 2 were obtained at 1.5 THz. To achieve a better modal field confinement, two graphene-based hybrid plasmonic waveguides were proposed [54,55], which could simultaneously achieve an ultra-small modal area and a propagation length of about several hundreds of micrometers at 3 THz. Despite recent progress in graphene-based waveguides, we note that the current reports mainly focus on the near-and mid-infrared band, and graphene-based THz waveguides are studied less, relatively speaking.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Terahertz Dielectric–Loaded Graphene Waveguide

Teng

Wang

2021

Nanomaterials

View full text Add to dashboard Cite

The waveguiding of terahertz surface plasmons by a GaAs strip-loaded graphene waveguide is investigated based on the effective-index method and the finite element method. Modal properties of the effective mode index, modal loss, and cut-off characteristics of higher order modes are investigated. By modulating the Fermi level, the modal properties of the fundamental mode could be adjusted. The accuracy of the effective-index method is verified by a comparison between the analytical results and numerical simulations. Besides the modal properties, the crosstalk between the adjacent waveguides, which determines the device integration density, is studied. The findings show that the effective-index method is highly valid for analyzing dielectric-loaded graphene plasmon waveguides in the terahertz region and may have potential applications in subwavelength tunable integrated photonic devices.

show abstract

Ultralow loss graphene-based hybrid plasmonic waveguide with deep-subwavelength confinement

Cited by 44 publications

References 39 publications

A review of crosstalk research for plasmonic waveguides

A review of crosstalk research for plasmonic waveguides

Graphene-Coated Nanowire Waveguides and Their Applications

Theoretical Analysis of Terahertz Dielectric–Loaded Graphene Waveguide

Contact Info

Product

Resources

About