SKM 2023 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 7: Poster I
HL 7.12: Poster
Monday, March 27, 2023, 13:00–15:00, P2/EG
One-dimensional topological interface states: a novel approach for optical pressure sensors — Jakob Lindenthal1, 2, •Anton Widulla1, Johannes Benduhn1, and Karl Leo1, 2 — 1Dresden Integrated Center for Applied Physics and Photonic Materials, Technische Universität Dresden — 2ct.qmat - Würzburg-Dresden Cluster of Excellence
The research field of nano-optics in connection with topological photonics has quickly evolved over the past decade. Topological considerations in the design of photonic systems open a wide range of possibilities for disorder protection and electric field alignment optimisation. Different material systems and topological setups are discussed in the context of pressure-sensitive nano-optical resonators, demonstrating a novel, highly versatile pressure sensor concept. The demonstrated system combines a compressible optical microcavity with an organic absorber material, which allows highly sensitive pressure-dependent tuning of the mode intensity. The contribution features modelling and characterisation results for systems with different topologies, showing pathways to significant topology-induced sensitivity enhancement. The use of coupled cavities is shown to provide additional sensing information with potential for industrial implementation.