Spatial Modes of Laser-Induced Mass Transfer in Micro-Gaps

oleh: Tobias C. Foertsch, Alex T. Davis, Roman Popov, Clemens von Bojničić-Kninski, Felix E. Held, Svetlana B. Tsogoeva, Felix F. Loeffler, Alexander Nesterov-Mueller

Format: Article
Diterbitkan: MDPI AG 2019-03-01

Deskripsi

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.