7. Surface Plasmon Propagation

1
7. Surface Plasmon Propagation
air
infinitely long
metal
z
y
infinitely long
x
2
Example code 1/3
dx 150/40 nm
From version X, one must insert
material_complexity(1). For further details,
see the updated function reference.
3
Example code 2/3
small damping
set lp 150 nm
4
Example code 3/3
5
Does not approach to 1/sqrt(2)
Very long calculation time required
? Finer grid is needed !
6
Finer grid dx 150/200 nm
7
Comparison with theory
8
Movie
metal
air
x
k/kp 0.7
z
k/kp 2.0
As the wavevector increases, a penetration into
the metal (skin depth) decreases. ? Finer grids
are needed for larger k cases.