Fig. 3
From: Deep Q-network to produce polarization-independent perfect solar absorbers: a statistical report

Pie charts of (a) the material distributions of film #1, film# 2 and the cylinder for structures with an AUC higher than 90% from 350 to 800 nm and an AUC lower than 10% from 8 to 13 μm (1250 structures) and (b) for the structures with an AUC higher than 95% from 350 to 800 nm and an AUC lower than 5% from 8 to 13 μm (119 structures)