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Surface Plasmon Polariton Waveguide by Bottom and Top of Graphene

Authors :
Duqu Wei
Xu Zhengjie
Jun Zhu
Wenju Xu
Deli Fu
Source :
Plasmonics. 13:1513-1522
Publication Year :
2017
Publisher :
Springer Science and Business Media LLC, 2017.

Abstract

Semiconductor surface plasmon polariton (SPP) waveguide has unique optical properties and compatibility with existing integrated circuit manufacturing technology; thus, SPP devices of semiconductor materials have wide application potential. In this study, a new integrated graphene SPP waveguide is designed using the bottom and top roles of graphene. Moreover, a T waveguide structure is designed by InGaAs of semiconductor gain, with rectangular GaAs material on both sides. The structure adopts light to stimulate the SPP, where its local area is enhanced by the interaction between two interface layers and a semiconductor gain and where its frequency can be adjusted by the thickness of the graphene. Characteristic analysis reveals the coupling between the T semiconductor gain and the SPP mode. The propagation distance of the waveguide can reach 75 cm, the effective mode field is approximately 0.0951λ 2, the minimum of gain threshold is approximately 2992.7 cm−1, and the quality factor (FOM) can reach 180. The waveguide structure which provides stronger localization can be compatible with several optical and electronic nanoscale components. That means, it can provide light for surface plasmon circuit and also can provide a great development in the low-threshold nanolaser.

Details

ISSN :
15571963 and 15571955
Volume :
13
Database :
OpenAIRE
Journal :
Plasmonics
Accession number :
edsair.doi...........f4b93fb5f5a1b104ad08c692524947e0
Full Text :
https://doi.org/10.1007/s11468-017-0658-2