Dear all, Together with two colleagues I am studying a 2D chirped photonic crystal and we are interested in the TM-modes. We have excited our system with a E_z source and found the localized modes we were looking for (!). The crystal has mirror planes in both, say, the x- and y-direction. Symmetric modes we could easily excite selectively by placing the source on one or both ax(i/e)s. Is there a (un)similar 'trick', to do this for the anti-symmetric ones? I hope you can help us with this question.
Thank you very much for your attention and all your efforts in advance. Best regards, Maarten Dobbelaar
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