This is an electromagnetic simulation of a nanotip that uses the MEEP FTDT simulation tools built for Python. It's primary purpose is to determine the electromagnetic fields surrounding the nanotip given a CW excitation. Important information regarding the simulation are listed below:

• Due to the differences in scale, it applies variable resolution s.t. the tip is at much higher resolution sampling than the exterior of the tip.

• The tip is set with a single dielectric constant (by n + jk) with a CW source.

• The CW source is turned on at time 0 and runs for the specified duration set by the user as the nunber of cycles (or waves)

• There are PMLs that surround the simulation cell, and periodic boundary conditions are used in the y-direction so that angled waves are supported.

• The source comes in at a grazing angle set by theta (in degrees) by the user. To achieve this, it places a sinusoidal phase variation on the source along the y-direction. The source area is in the xy-plane and the waves propagate in the z-direction with a slight downward angle in y.

• The tip is made by a cylinder, with a cone on top, capped by a sphere of specified radius of curvature.