Mean multiplication gain and excess noise factor of GaN and Al0.45Ga0.55N avalanche photodiodesTat Lung Wesley Ooi, Pei Ling Cheang, Ah Heng You and Yee Kit ChanEur. Phys. J. Appl. Phys., 92 1 (2020) 10301DOI: https://doi.org/10.1051/epjap/2020200067