Consider a rectangular silver surface plasmon waveguide with dimensions 1000nm x 100nm described in .
We want to measure the effective index of the ssb0 mode at 633nm. We will also calculate the effective index of this mode as a function of waveguide thickness, from 50nm to 200nm.
In this example, we show how MODE can be used to study surface plasmon modes. We will use a non-uniform mesh to more accurately resolve the fields near the metal interface. The user will learn to:
•Create a new material
•Use symmetric boundary conditions
•Use mesh override regions to create a non-uniform mesh
•Use a built in parameter sweep to get the effective index and loss vs. thickness of the waveguide