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Graphene-assisted resonant transmission and enhanced Goos–Hänchen shift in a frustrated total internal reflection configuration

2016; Optica Publishing Group; Volume: 41; Issue: 19 Linguagem: Inglês

10.1364/ol.41.004468

1539-4794

Yi Chen, Yue Ban, Qi-Biao Zhu, Xi Chen,

Mechanical and Optical Resonators

Graphene-assisted resonant transmission and enhanced Goos-Hänchen shift are investigated in a two-prism frustrated total internal reflection configuration. Due to the excitation of surface plasmons induced by graphene in a low terahertz frequency range, there exist the resonant transmission and anomalous Goos-Hänchen shifts in such an optical tunneling configuration. As compared to the case of the quantum well, a graphene sheet with unique optical properties can enhance the resonant transmission with a relatively low loss and modulate the large negative and positive Goos-Hänchen shifts by adjusting the chemical potential or electron relaxation time. These intriguing phenomena may lead to some potential applications in graphene-based electro-optic devices.