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. 2016 Oct 14;6:35398. doi: 10.1038/srep35398

Figure 5. 2D and 3D Brillouin images of the PMMA lens.

Figure 5

(a) Schematic of the cross-section that was scanned by the beam line. (b) Cross-sectional Brillouin image of the PMMA lens at the location indicated by the dotted line in Fig. 4a. The colorbar represents the Brillouin frequency shift with a unit of GHz. (c) Schematic of the 3D scanning of the PMMA lens. 3D images were obtained by scanning the cross-section in z-axis. (d) 3D Brillouin imaging of the PMMA lens. Each slice represents a cross-section image of the PMMA lens at a location along z-axis.