Enhanced Goos-Hänchen shift of graphene coated on one-dimensional photonic crystal

Results in Physics

Yu Sun¹  Yu Lu²  Weijing Kong³ 

[1] Corresponding author.;School of Cyber Science and Technology, Beihang University, 37 Xueyuan Rd., Beijing 100191, China;School of Electronic Engineering, Tianjin University of Technology and Education, 1310 Dagu South Rd., Tianjin 300222, China;

关键词: Optical instruments;    Optics at surfaces;    Graphene;    One-dimensional photonic crystal;   

DOI  :  

来源: DOAJ

【 摘 要 】

The enhancement of Goos-Hänchen shift of graphene coated on a truncated one-dimensional photonic crystal is proposed and theoretically investigated. The proposed band-gap configuration featuring highly electric field enhancement and confinement on the graphene surface enables the excitation of Bloch surface wave mode. By taking full advantages of the remarkable optical properties of the excited optical surface wave mode, a large phase variation appears near the band-gap of the proposed structure, leading to a dramatically enhanced Goos-Hänchen shift. Leveraging this giant Goos-Hänchen shift, the sensing capability of this proposed structure is discussed, implicating a superior performance in Goos-Hänchen shift sensing applications.

【 授权许可】

Unknown