Abstract

We perform a comprehensive analysis of multiband absorption properties in a metal-dielectric-metal-dielectric (MDMD) nanostructure under TM wave illumination. The multiband absorption can be attributed to the hybridization of the surface plasmon resonance (SPR) and the guide-mode resonance (GMR), and we identify the hybrid GMR/SPR by the dispersion relation equations of the SPR and GMR, respectively. More importantly, the MDMD nanostructure is very sensitive to the change of the dielectric environment for the special hybrid structure; thus, it can function as a good candidate for ultrasensitive biochemical sensing. The highest sensitivity of the MDMD nanostructure reaches 1087 nm/RIU with the figure of merit (FoM) of 23 and the new figure of merit (${\mathrm{FoM}}^{*}$) of 483; it is performed by the absorption peak at 1796.1 nm of the double surface plasmon polariton with the strongest field enhancement at the surface.

© 2018 Optical Society of America

Design of an ultrasensitive SPR biosensor based on a graphene-MoS₂ hybrid structure with a MgF₂ prism

Yuncai Feng, Youwen Liu, and Jinghua Teng
Appl. Opt. 57(14) 3639-3644 (2018)

Design of a high-performance graphene/SiO₂-Ag periodic grating/MoS₂ surface plasmon resonance sensor

XiaoLin Liu, Jin Liu, HaiMa Yang, Bo Huang, and GuoHui Zeng
Appl. Opt. 61(23) 6752-6760 (2022)

Highly sensitive dual-core photonic crystal fiber based on a surface plasmon resonance sensor with a silver nano-continuous grating

Shengxi Jiao, Sanfeng Gu, Hanrui Yang, Hairui Fang, and Shibo Xu
Appl. Opt. 57(28) 8350-8358 (2018)

High-sensitivity multi-channel refractive-index sensor based on a graphene-based hybrid Tamm plasmonic structure

Jinlei Hu, Yulan Huang, Yuxuan Chen, Zheng-da Hu, Jingjing Wu, and Jicheng Wang
Opt. Mater. Express 11(11) 3833-3843 (2021)

Design study of nanograting-based surface plasmon resonance biosensor in the near-infrared wavelength

M. Tahmasebpour, M. Bahrami, and A. Asgari
Appl. Opt. 53(7) 1449-1458 (2014)