首页|Signature of simultaneous onset of topological edge-state and transverse localized state in a 1-D specialty photonic lattice
Signature of simultaneous onset of topological edge-state and transverse localized state in a 1-D specialty photonic lattice
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NSTL
Elsevier
We investigate and establish the fact that, a topological edge-state and transverse localized state can coexist due to the interplay of band topology and deliberate refractive index disorder in 1-D photonic lattice. We found that two exclusive states of light are supported by a 10 mm long specialty topological lattice in presence of optimum disorder. The signature of the edge-state is identified by its robust loss-less nature whereas transverse localized state is identified by the exponentially decaying tail of the transverse intensity distributions. The specialty topological lattice used as test-bed is made by combining two periodic lattices of different topologies. The topological nature of the lattices are identified by the associated Zak phases of the corresponding bands. The studies in this direction are necessary to explore novel optical communication schemes in 1-D lattices which are robust to the fabrication imperfections.
NSTL
Elsevier
