Edge-to-edge topological spectral transfer in diamond photonic lattices

The transfer of information between topological edge states is a robust way spatially manipulating spatial in lattice environments. This method particularly efficient when the modes are kept within gap during transfer. In this work, we show experimentally photonic located at opposite ends dimerized one-dimensional lattice. We use diamond coupled waveguides and that insensitive to presence high density form flat band an energy close prevails hopping impurity. explore dynamics waveguide using wavelength-scan method, where different input wavelengths translate into effective lengths. Our results offer alternative implementation protocols based on active driving mechanisms.