Figure 7.

The effect of laser pulse duration at constant peak power. (A) Image of the donor slide after printing: There are eight holes in the gold layer indicating the focal spot position for 100-ns pulses (four smaller holes) and 200-ns pulses (four bigger holes). (B) Image of the collector slide. Four printed hydrogel droplets corresponding to the position of the 200-ns pulses can be seen but no hydrogel droplets printed with 100-ns pulses. (C) Alginate droplets were printed with 100- and 200-ns pulses with the same peak power and similar temporal shapes at the first 80 ns of the laser pulse.