Abstract

A proposal on optical bistability at ultralow switching threshold and lower Fermi-level of graphene around 2 THz is implemented analytically through the proposed long-range surface plasmon resonance configuration by employing local field enhancement effects owing to the excitation of a graphene symmetric mode within graphene sheets. Reported threshold intensity for the optical bistability to date is $1.6\mathrm{kW}/{\mathrm{cm}}^2$ within the terahertz region and $1.83\mathrm{MW}/{\mathrm{cm}}^2$ at near-IR range. Whereas the proposed scheme explores the possibility of reducing this threshold down to $143.68\mathrm{W}/{\mathrm{cm}}^2$, this technique proffers potential applications in nanoillumination, optical memory, and all-optical switching at an ultra-low threshold.

© 2017 Optical Society of America

Tunable low-threshold bistable Goos–Hänchen shift and Imbert–Fedorov shift using long-range graphene surface plasmons within the terahertz region

Aparupa Kar, Nabamita Goswami, and Ardhendu Saha
Appl. Opt. 58(34) 9376-9383 (2019)

Magnetically tunable ultralow threshold optical bistability by exciting LRSPR in InAs/graphene layers at the terahertz region

Kumar Avinash, Nabamita Goswami, and Ardhendu Saha
Appl. Opt. 62(14) 3797-3805 (2023)

Graphene Tamm plasmon-induced low-threshold optical bistability at terahertz frequencies

Leyong Jiang, Jiao Tang, Jiao Xu, Zhiwei Zheng, Jun Dong, Jun Guo, Shengyou Qian, Xiaoyu Dai, and Yuanjiang Xiang
Opt. Mater. Express 9(1) 139-150 (2019)

Terahertz bistability and multistability in graphene/dielectric Fibonacci multilayer

Hadiseh Nasari and Mohammad Sadegh Abrishamian
Appl. Opt. 56(19) 5313-5322 (2017)

Low threshold optical bistability in one-dimensional gratings based on graphene plasmonics

Jun Guo, Leyong Jiang, Yue Jia, Xiaoyu Dai, Yuanjiang Xiang, and Dianyuan Fan
Opt. Express 25(6) 5972-5981 (2017)