Physics / mechanism
Competitive landscape
Competing and adjacent approaches split by range, cost, and analyte class. Electrochemical and metal-oxide sensors dominate low-cost point detection but lack selectivity and drift. Satellite remote sensing (Sentinel-5P, GHGSat) provides global coverage at coarse resolution (>1 km). Passive FTIR competes with active lidar for standoff. Raman lidar resolves aerosol backscatter independent of absorption. Miniaturised photonic integrated circuit (PIC) spectrometers on Si or SiN wafer platforms are the near-term disruptive vector.
Companies using
Connected ideas
Sources
Frontier (open questions)
- To be added.