@article{2017-bleckmann-alberti-phys-rev-b-v96-p045417,
	Abstract = {<p>
	We report on the observation of a topologically protected edge state at the interface between two topologically distinct domains of the Su-Schrieffer-Heeger model, which we implement in arrays of evanescently coupled dielectric-loaded surface plasmon polariton waveguides. Direct evidence of the topological character of the edge state is obtained through several independent experiments: Its spatial localization at the interface as well as the restriction to one sublattice is confirmed by real-space leakage radiation microscopy. The corresponding momentum-resolved spectrum obtained by Fourier imaging reveals the midgap position of the edge state as predicted by theory.</p>},
	Author = {Bleckmann, F. AND Cherpakova, Z. AND Linden, S. AND Alberti, A.},
	Journal = {Phys. Rev. B},
	Pages = {045417},
	Title = {{Spectral imaging of topological edge states in plasmonic waveguide arrays}},
	Volume = {96},
	Year = {2017}
}