Figure 2
From: Analysis of optical absorption in GaAs nanowire arrays
Absorptance, reflectance, and transmittance of GaAs NWs. (a) Absorptance of GaAs NWs with different lengths of 1 to 3 μm. The pink curve shows the absorptance of a 2.2-μm-thick GaAs thin film. (b, c, d) Absorptance, reflectance, and transmittance of GaAs NWAs with different filling ratios varying from 0.4 to 0.8.