AFM thickness (nm),Absorption thickness (nm),Absorption error (nm) 88,74.3,12 45,41.6,5 38.2,38,5 15.4,13.8,2 67,70.5,10 112.8,109.3,20 78.7,74.1,11 34.2,33.3,4 25.5,25.8,3 14,13.4,2 52.7,47.1,5