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On the left of the interface the electric field is given by
 |
(20) |
and on the right hand side of the interface the electric field is given by
 |
(21) |
Maxwel's equations give us the relationship between the electric and magnetic fields for a plane wave.
 |
(22) |
which simplifies to:
 |
(23) |
Applying equation 23 to equations 20-21, we can get the magnetic field on the left of the interface
 |
(24) |
and on the right of the interface
 |
(25) |
Tidying up gives,
 |
(26) |
 |
(27) |
Subsections
Next: Boundary conditions
Up: The physical model
Previous: Solving the equations
rod
2015-01-07