Abstract
In this work, we experimentally demonstrate confined modes in a Bloch surface wave (BSW) ring resonator. We fabricate and characterize a ring resonator with a radius R = 105 μm on a truncated periodic porous silicon multilayer. We show resonant modes around 1.5 μm with quality factors exceeding 103. These results suggest that this platform is promising to develop integrated optical resonators based on BSWs.
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