Optical detection of CO gas by the surface-plasmon resonance of Ag nanoparticles and nanoclusters synthesized on a hydrogenated amorphous carbon (a-C:H) filmMohammad Ahmadirad, Ahmad Yazdani and Kourosh RahimiEur. Phys. J. Plus, 134 7 (2019) 328DOI: https://doi.org/10.1140/epjp/i2019-12646-6