Fig. 6: Stand-off detection technology and Smart microsystems in environmental monitoring.
From: AI‑driven photonic noses: from conventional sensors to cloud‑to-edge intelligent microsystems
a Stand-off and real-time atmospheric monitoring using SERS-based AI photonic nose integrated with MOFs. Reproduced with permission from the American Chemical Society (2019)223. (i) Overview schematic display. (ii) Device characterization. (iii) Relationship between distance and signal intensity. (iv) Cycle measurement experiment. (v) Principle component analysis. b Smart mid-infrared microspectrometer gas sensing system. Reproduced with permission from the Springer (2024)224. (i) Overview schematic display. (ii) Principle component analysis. (iii) Confusion matrices of a support vector machine algorithm
