Wave Propagation in Linear Media | re-examined

4.3 Examples of scattering processes
2.5
2
1.5
1
0.5
P
0 20 40 60 80 100 120 140 T
2.5
2
1.5
1
0.5
P
0 20 40 60 80 100 120 140 T
Figure 4.14: Pulse shapes produced by several short wave packets at the interface of the barrier. The
parameter are k = 6 and = 0:2. The left graph shows the rectangular (solid line) and triangular
(dotted line) packet. On the right side, the results of a narrow (n= 10, solid line) and a wide (n =4,
dotted line) Gaussian packet are given.
0.014
0.012
0.01
0.008
0.006
0.004
0.002
P
-6
8. 10
-6
6. 10
-6
4. 10
-6
2. 10
P
20 40 60 80 100 120 140 T
20 40 60 80 100 120 140 T
0.0001
0.00008
0.00006
0.00004
0.00002
-8
5. 10
-8
4. 10
-8
3. 10
-8
2. 10
-8
1. 10
P
P
20 40 60 80 100 120 140 T
20 40 60 80 100 120 140 T
Figure 4.15: Pulse shapes produced by several short wave packets at X = 10 inside the barrier. The
parameter are k =6and =0:2. The graphs show the rectangular (upper left), triangular (upper
right), narrow Gaussian (n = 10, lower left), and wide Gaussian (n =4,lower right) packet.
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