Title :
A Nanoscale Plasmonic Long-Wavelength Cutoff Filter
Author :
Zhu, Jia Hu ; Huang, Xu Guang ; Tao, Jin ; Mei, Xian
Author_Institution :
Key Lab. of Photonic Inf. Technol., Guangzhou Univ., Guangzhou, China
fDate :
7/1/2011 12:00:00 AM
Abstract :
A nanoplasmonic cutoff filter consisting of two straight metal-insulator-metal waveguides connected with two symmetrical rectangular cavities (“+” type) is proposed and numerically simulated by using the finite difference time domain method with a perfectly matched layer absorbing boundary condition. The simulation demonstrates that the cutoff filter has characteristic of long-wavelength cutoff in the transmission spectrum. The cutoff wavelength increases with the increase of the two rectangular cavities length or the decrease of the width of the two rectangular cavities.
Keywords :
MIM devices; finite difference time-domain analysis; nanoelectronics; optical waveguide filters; plasmonics; rectangular waveguides; waveguide filters; finite difference time domain method; nanoscale plasmonic long-wavelength cutoff filter; perfectly matched layer absorbing boundary condition; straight metal-insulator-metal waveguides; symmetrical rectangular cavity; transmission spectrum; Cavity resonators; Metals; Optical filters; Optical waveguides; Optimized production technology; Plasmons; Surface waves; Integrated optics devices; metal–insulator–metal (MIM) waveguide; surface plasmons; wavelength filtering;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2010.2080318
