Spatial modes of laser-induced mass transfer in micro-gaps

We have observed the concentric deposition patterns of small molecules transferred by means of laser-induced forward transfer (LIFT). The patterns comprised different parts whose presence changed with the experimental constraints in a mode-like fashion. In experiments, we studied this previously unknown phenomenon and derived model assumptions for its emergence. We identified aerosol micro-flow and geometric confinement as the mechanism behind the mass transfer and the cause of the concentric patterns. We validated our model using a simulation.

Subjects

Aerosol

Bio-printing

Confinement

Deposition patterns

LIFT

DDC Class

600: Technology

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Spatial modes of laser-induced mass transfer in micro-gaps