Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Quasi-phase matching for efficient long-range plasmonic third-harmonic generation via graphene

Not Accessible

Your library or personal account may give you access

Abstract

We propose and numerically investigate an efficient method for long-range third-harmonic generation (THG) of propagating surface plasmon polaritons (SPP) waves on graphene sheets for nonlinear plasmonic purposes in the terahertz (THZ) gap region of the electromagnetic spectrum via a developed nonlinear finite-difference time-domain technique. We reveal that although extended and unmodulated graphene sheets with low Fermi levels can offer high-conversion efficiency (CE) for SPP THG at short distances, suitable for miniaturized plasmonic circuits, they suffer from inherent absorption loss induced by graphene that noticeably reduces the CE of the THG at long ranges. We suggest a structure benefiting from low Fermi-level graphene regions of strong nonlinear response as oscillators and high Fermi-level ones of low loss as a propagating medium in a periodic manner, which satisfies the quasi-phase matching condition and shows considerable efficiency improvement at long propagation distances. We predict that such a configuration can find valuable potential applications in the realm of nonlinear THz plasmonics for generating new frequencies and also in spectroscopy, signal processing, and so on.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Coupling-length phase matching for efficient third-harmonic generation based on parallel-coupled waveguides

Tianye Huang, Perry Ping Shum, Xuguang Shao, Timothy Lee, Zhifang Wu, Huizi Li, Tingting Wu, Meng Zhang, Xuan Quyen Dinh, and Gilberto Brambilla
Opt. Lett. 40(6) 894-897 (2015)

Bistability of optical harmonic generation in monolayer graphene plasmonics

Xin Li, Yunfeng Tan, Luying Yin, Yanyan Huo, Lina Zhao, Qingyang Yue, and Tingyin Ning
Opt. Lett. 46(5) 1029-1032 (2021)

Plasmonic Zitterbewegung in binary graphene sheet arrays

Yang Fan, Bing Wang, He Huang, Kai Wang, Hua Long, and Peixiang Lu
Opt. Lett. 40(13) 2945-2948 (2015)

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 Optica member, or as an authorized user of your institution.

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

Figures (8)

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

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

Equations (1)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved