Fig. 5: Influence of sample fine structure.
From: Polarization-driven reversible actuation in a photo-responsive polymer composite
Plot of fitted parameters for multiple actuation cycles for Sample 2 (a) and Sample 4 on top of large aggregates (b) and in between aggregates (c). Relative horizontal elongation strain ε1 per X-POL step (blue circles), absolute value of relative vertical compression strain |ε2| = −ε2 per X-POL step (red asterisks), relative area expansion δAcycle per full illumination cycle (X-POL + CIRC-POL) (green triangles). Dashed green line: asymptotic behaviour. Solid blue line: zero deformation limit. Short/tall x-axis ticks: X-pol step/Two-step illumination cycle. Error bars: s.d. of 3 acquisitions on distinct areas. Insets: confocal images of samples’ structures and aggregate sizes. Inset scale bars: (a) 3 μm, (b, c) 75 μm. White frames on insets in (b,c) show a typical illumination area.
