Hello Fulya; I don't understand the your questions. Want to removed upper bands? Please read: http://e-collection.library.ethz.ch/eserv/eth:29871/eth-29871-02.pdfhttp://www.schemers.org/http://www.opticsinfobase.org/oe/abstract.cfm?URI=OPEX-8-3-173 Regards Ozgur 2011/11/21 Fulya Bagci <[email protected]>: > Dear mpb-users, > I defined a 2D triangular lattice PCW with first rows ring-shaped and second > rows vertically shifted. In the band diagram, I observed that the parts of > the bands couple to each other at their intersection point, therefore there > are some excess guided bands and the field distribution of the guided odd > mode does not seem guided. How can I understand the accuracy of the upper > guided band and the onset of extended modes? > Any help is appreciated. > Thank you very much. > Regards, > Fulya Bagci
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