Fig. 1: Roadmap of AI‑driven photonic noses.
From: AI‑driven photonic noses: from conventional sensors to cloud‑to-edge intelligent microsystems
Early gas sensors (including colorimeters, refractive sensors, absorptive sensors, and spectroscopic sensors) paved the way for subsequent innovations. With advancements toward high-throughput sensors, distributed nodes, and on‑chip photonic integrated circuits, the post‑sensing intelligence, cloud-based processing, and edge-based intelligence have progressively been realized
