Topological boundary states in 1D: An effective Fabry-Perot model
1 Rafael research center, Rafael ltd., P.O. Box 2250, Haifa 32100, Israel
2 Department of Physics, Technion Israel Institute of Technology, Haifa 32000, Israel
a e-mail: firstname.lastname@example.org
Received: 24 October 2016
Revised: 12 December 2016
Published online: 25 May 2017
We present a general and useful method to predict the existence, frequency, and spatial properties of gap states in photonic (and other) structures with a gapped spectrum. This method is established using the scattering approach. It offers a viewpoint based on a geometrical Fabry-Perot model. We demonstrate the capabilities of this model by predicting the behaviour of topological edge states in quasi-periodic structures.
© The Author(s) 2017
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