Giant and tunable Goos-Hänchen shifts with a surface plasmon resonance structure

Zihao Liu; Liujia Liu; Yujie Zou; Zhiwei Zheng

doi:10.1117/12.2602908

31 August 2021 Giant and tunable Goos-Hänchen shifts with a surface plasmon resonance structure

Zihao Liu, Liujia Liu, Yujie Zou, Zhiwei Zheng

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 1190718 (2021) https://doi.org/10.1117/12.2602908
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

We propose a structure that uses surface plasmon resonance (SPR) of two-dimensional (2D) materials to enhance the sensitivity of the biosensor. When the GH shift is used as an interrogation to the biosensor, since SPR can greatly enhance and control the Goos-Hänchen (GH) shift, the biosensor will have excellent sensitivity. Theoretical research results show that by adjusting the structural parameters, a huge GH shift and a sensitivity that is hundreds of times higher than that of ordinary biosensors can be obtained. This will help research in areas such as basic biology and environmental monitoring.

Citation Download Citation

Zihao Liu, Liujia Liu, Yujie Zou, and Zhiwei Zheng "Giant and tunable Goos-Hänchen shifts with a surface plasmon resonance structure", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 1190718 (31 August 2021); https://doi.org/10.1117/12.2602908

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KEYWORDS

Spiral phase plates

Reflectivity

Surface plasmons

Sensors

Biosensors

Gold

Metals

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