First experimental demonstration of second and third harmonic generation in topological insulator van der Waals metamaterials, with even harmonics from surface symmetry breaking and odd from bulk centro-symmetry.
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physics.optics 1years
2026 1verdicts
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Second harmonic generation and third harmonic generation in topological insulator-based van der Waals metamaterials
First experimental demonstration of second and third harmonic generation in topological insulator van der Waals metamaterials, with even harmonics from surface symmetry breaking and odd from bulk centro-symmetry.