banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Plasmonic waveguide ring resonator at terahertz frequencies
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

Schematic diagram of the plasmonic WRR. The incident wave is introduced in the input dielectric waveguide with a refractive index of and a width of . denotes the ring radius of the WRR. The thicknesses of dielectric cladding in the ring and output waveguides are both . The refractive indices of them are and , respectively. and denote the gaps between the input and output waveguides and the resonant ring, respectively. Ports 1 and 2 present the planes where the power transmission from the input and output waveguides is detected.

Image of FIG. 2.
FIG. 2.

(Color online) Power transmission from (a) port 1 at the input waveguide and (b) port 2 at the output waveguide as a function of frequency for plasmonic WRR with dielectric claddings (green dots, , ) and without dielectric claddings (blue squares, ), respectively. Both WRRs have a radius of and the gaps and .

Image of FIG. 3.
FIG. 3.

(Color online) Magnetic field distributions in the WRR for (a) and (b) . The parameters labeled in Fig. 1 are given as , , , , , and .

Image of FIG. 4.
FIG. 4.

(Color online) Resonant frequencies (left) and FSR (right) of the WRR as a function of the ring radius.

Image of FIG. 5.
FIG. 5.

(Color online) Dependence of power transmission from ports 1 and 2 on (a) the refractive index of the input waveguide for , (b) the gap between the input and the ring waveguides for , and (c) the gap between the output waveguide and the resonant ring for and . Other parameters are the same as that used in Fig. 3(b).


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Plasmonic waveguide ring resonator at terahertz frequencies