Fig. 5

Special solutions for patterns of increased complexity. Temperature distributions, corresponding temperature histograms, and particle trajectories yielded by the repeated scanning along a–c five concentric hexagons, d–f five concentric star-shaped paths, g–i five S-shaped lines, j–l five concentric circles, m–o a spiral, and p–r five concentric ellipses, respectively. The bottom-left insets in panels a, d, g, j, m, p show the patterns scanned by the laser beam. Blue and red lines were used to distinguish between counteracted and non-counteracted scan paths, respectively. Specifically, in panels a, d, j, p the shapes were scanned clockwise from the outermost to the innermost region in the first period, and counterclockwise from the innermost to the outermost region in the second period (except for the middle one that was scanned twice counterclockwise). In panel g, the lines are scanned starting from top-left and following the shape in the first period, while from bottom-right in the second period (except for the middle path which was scanned twice starting from bottom-right). In panel m, the spiral is scanned counterclockwise from outside to inside. The shaded histograms in panels b, e, h, k, n, q represent the temperature distributions measured by using the corresponding FLUCS patterns (see also Additional file 1: Fig. S7). Scale bar: 20 μm