Parathyroid Carcinoma Mimicking a Parathyroid Adenoma on [18F]F-Choline-PET With Occult Metastases

Bregenzer, Carola M. MD

doi:10.1097/RLU.0000000000006555

Research on the Fano resonance mechanism of a graphene ring cavity MIM waveguide

2026-03-01

0

PRE

AI

W

Wenfeng Luo

J

J. W. S. Liu

S

Shuyuan Lv *

Y

Yerou Wang

Z

Zhang, Lulu

L

Lan An

DOI：10.1080/09500340.2026.2643856

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This study proposes a metal-insulator-metal(MIM)-graphene hybrid waveguide structure by integrating graphene nanotubes into MIM ring resonators. The transmission spectrum and electric field distribution are analyzed using the finite element method (FEM), and the results show excellent agreement with multimode interference coupled mode theory (MICMT). Based on this design, the refractive index sensor achieves sensitivity reaching up to 1900nm/RIU, with a peak figure of merit (FOM) of 96.15 RIU-1. Importantly, compared to conventional MIM waveguide devices, the introduction of graphene enables dynamic tunability of the waveguide response.

Keywords:

Graphene nanotubes

MIM waveguide

finite element method

multimode interference coupled mode theory

Research on the Fano resonance mechanism of a graphene ring cavity MIM waveguide

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