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simulate total internal reflection
Posted 2010年5月2日 GMT-4 22:23 0 Replies
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2D. interface between glass (n=1.5) and air (n=1). i add PML at top and bottom.
i want to simulate an incident tilted plane wave enter glass layer from top, the boundary condition i use at the two sides is Floquet periodicity with k = the k vector for the plane wave.
the boundary condition at the two PML is scattering boundary condition.
i solve for scattered TM.
I expect that for incident angle > 41.8 degree, i will observe total internal reflection, where the wave in Air will propagate in x direction, with magnitude exponentially decay in y direction.
However, if my incident angle is 0.5*pi, i can get the total internal reflection; for all other incident angles, i did not observe this. when i plot out the scattered Hz, I see that the Hz in Air is not an evanescent wave.
Anyone knows what is the possible mistake? thanks a lot!
Hello Lin WU
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