Title :
A novel plasmonic nanosensor based on electro-magnetically induced transparency of waveguide resonator systems
Author :
Ni, Bingbing ; Chen, Xiao Yuan ; Xiong, D.Y. ; Liu, Hongying ; Hua, G.H. ; Chang, J.H. ; Zhang, J.H. ; Zhou, Huimin
Author_Institution :
Jiangsu Key Lab. of Meteorol. Obs. & Inf. Process., Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China
Abstract :
We propose a plasmonic refractive index-sensitive nanosensor based on the electromagnetically induced transparency (EIT) of waveguide resonator systems. The structure consists of one tooth-shaped cavity as well as the bus and stub metal-insulator-metal waveguides. By adjusting the structural geometry, it is demonstrated that the controllable transmission of EIT response can be obtained with the finite-difference-time-domain simulations. It is found that the transmission spectra dip can be strongly controlled by changing the refractive index filled in the stub waveguide. The calculated results show that the sensitivity of the plasmonic nanosensor is 733 nm/RIU.
Keywords :
finite difference time-domain analysis; nanophotonics; nanosensors; optical resonators; optical waveguides; plasmonics; refractive index; self-induced transparency; electro-magnetically induced transparency; finite difference time-domain simulations; plasmonic refractive index-sensitive nanosensor; stub metal-insulator-metal waveguides; transmission spectra dip; waveguide resonator systems; Cavity resonators; Nanobioscience; Optical resonators; Optical waveguides; Plasmons; Tomography;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices (NUSOD), 2014 14th International Conference on
Conference_Location :
Palma de Mallorca
Print_ISBN :
978-1-4799-3681-6
DOI :
10.1109/NUSOD.2014.6935347
