High Q/V integrated photonic resonant structures with strong light confinement in air

This talk is focused on new structures for considerably enhancing light-matter interaction in resonance-based integrated photonic platforms. The key aspect of the presented structures is the ability to confine light in air (or the low-index material) without dramatically reducing the quality factor (Q) or increasing the mode volume (V) of the resonance mode. This avoids the long-lasting problem of evanescent coupling of the resonance mode with the low-index material in light-matter interaction for applications like sensing and quantum photonic applications. By simultaneous optimization of Q, V, and the field profile, we demonstrate new classes of integrated photonic structures that can be combined with other materials, especially functional polymers, for active integrated photonic devices.