Incoherence-assisted mode excitation in non-Hermitian resonant systems
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 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.
Fields of Study & Subjects
Quantum Mechanics and Non-Hermitian Physics
Advanced Fiber Laser Technologies
Topological Materials and Phenomena
Publication details
- Journal / source
- Physical Review Research
- Publisher
- American Physical Society (APS)
- Volume
- 8
- Issue
- 2
- Publication date
- 3 May 2026
- Language
- EN