Figure 4From: Patterned thin metal film for the lateral resolution measurement of photoacoustic tomography Longitudinal 1D transducer signals from the positive PTMF sample: (a) Elements 2 – 6 of Group 0; (b) Elements 1 – 6 of Group 1. The scales of x-axes of (a) and (b) are identical. Dashed circles indicate the signal from the largest element of each group.Back to article page