Abstract

We propose a high-performance, graphene-based optical modulator with a surface plasmon resonance (SPR) at 1550 nm. In the proposed device, a graphene layer is embedded in a hybrid plasmonic waveguide to enhance the light-graphene interaction. The adjustment of the permittivity of the graphene causes a significant modulation of the absorption in the SPR through a variation of the field confinement in the graphene layer, in addition to a resonant angle shift. With an optimal thickness of a metal (Ag) film and the properly chosen operation point of the Fermi level of graphene, a modulation depth of 100% was achieved. As the number of graphene layers in the proposed device increases, the insertion loss decreases. With five-layer graphene, a 6% insertion loss was achieved.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Near-infrared electro-optic modulator based on plasmonic graphene

Susbhan Das, Alessandro Salandrino, Judy Z. Wu, and Rongqing Hui
Opt. Lett. 40(7) 1516-1519 (2015)

Highly efficient plasmonic enhancement of graphene absorption at telecommunication wavelengths

Hua Lu, Benjamin P. Cumming, and Min Gu
Opt. Lett. 40(15) 3647-3650 (2015)

Slow light enabled high-modulation-depth graphene modulator with plasmonic metasurfaces

Tangxuan Ren and Lin Chen
Opt. Lett. 44(22) 5446-5449 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription