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arXiv · 2604.15550

Incoherence-assisted mode excitation in non-Hermitian resonant systems

Amin Hashemi·Vinzenz Zimmermann·Armando Perez-Leija·Andrea Blanco-Redondo
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Abstract

We introduce and experimentally demonstrate an approach for selective mode excitation in non-Hermitian resonant systems using incoherent light. This method eliminates the need for precise phase control that is often required in coherent excitation schemes. Using this technique on a silicon photonic platform with coupled ring resonators, we successfully excite the topological edge state of a non-Hermitian Su-Schrieffer-Heeger (SSH) model. Our work shows that incoherence-assisted excitation is a robust and passive strategy for topological state preparation, which broadens the scope of non-Hermitian topological photonics thereby providing a practical and experimentally viable tool for selective mode excitation.

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Amin Hashemi, Vinzenz Zimmermann, Armando Perez-Leija, Andrea Blanco-Redondo. 2026-04-16. Incoherence-assisted mode excitation in non-Hermitian resonant systems. https://doi.org/10.1103/nmm6-5mkg

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