Fig. 6.

Characterization of resolution. (a), (b) Lateral image of the same bead when the lens was straight or bent leftward, (c), (d) the respective intensity distribution along the x and y directions, (e) overlaid 3D image of the bead without (red) and with (green) bending for axial (i.e., z) resolution characterization, (f) intensity distribution along the z direction. ST, straight; LW, bent leftward. For the bent lens, $l_s=12.7mm$ and $V_e=-1.75mm$ .