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Tunable terahertz-wave confinement in a nonlinear topological photonic chip

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Abstract

We demonstrate nonlinear generation and topologically tuned confinement of THz waves in a wedge-shaped Su-Schrieffer-Heeger lattice laser-written in a lithium-niobate chip, examining THz defect modes from band structure and analyzing their robustness to chiral perturbation.

© 2022 The Author(s)

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