Figure 1
From: Photo-acoustic spectroscopy revealing resonant absorption of self-assembled GaAs-based nanowires

(a) Vertical schematic of the NWs of the length L, where \(\vec{k}\) is always parallel to L and normally incident on the cross section. (b) Cross section of the NWs with overall diameter D, which comprises GaAs core, tAlGaAs thick AlGaAs shell, and tGaAs thick GaAs supershell.