Plasmonic Waveguide Filter
Application ID: 60001
This example of a plasmonic waveguide filter shows that the waveguide rejects the electromagnetic radiation of the wavelength between 1.4 um and 1.6 um, but allows the rest of the wavelength. The silver material can be modeled using the Drude-Lorentz approximation, with ε∞ = 3.7, ωp = 13.8 rad/s, and γ = 2.736 rad/s; while the insulator is modeled using air. As an alternative to the Drude-Lorentz material model approximation, the material property determined by Johnson and Christy's experimental data can be used, which is available in the Material Library as Ag (Johnson).
Get details on how to model the plasmonic waveguide filter in the accompanying blog post: "How to Model Linear and Nonlinear Optics in the COMSOL® Software"
Reference: Z. Han, E. Forsberg, and S. He, “Surface Plasmon Bragg Gratings Formed in Metal-Insulator-Metal Waveguides,” IEEE Photonics Technology Letters, vol. 19, no. 2, pp. 91–93, Jan. 15, 2007.
This model example illustrates applications of this type that would nominally be built using the following products:Wave Optics Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.