Experimental investigation of the jet-on-jet physical phenomenon in laser-induced forward transfer (LIFT)

Justinas Miksys*, Gari Arutinov, Matthias Feinaeugle, Gert-Willem Römer

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Understanding the physics behind the ejection dynamics in laser-induced forward transfer (LIFT) is of key importance in order to develop new printing techniques and overcome their limitations. In this work, a new jet-on-jet ejection phenomenon is presented and its physical origin is discussed. Time-resolved shadowgraphy imaging was employed to capture the ejection dynamics and is complemented with the photodiode intensity measurements in order to capture the light emitted by laser-induced plasma. A focus scan was conducted, which confirmed that the secondary jet is ejected due to laser-induced plasma generated at the center of the laser spot, where intensity is the highest. Five characteristic regions of the focus scan, with regards to laser fluence level and laser spot size, were distinguished. The study provides new insights in laser-induced jet dynamics and shows the possibility of overcoming the trade-off between the printing resolution and printing distance.

Original languageEnglish
Pages (from-to)37436-37449
Number of pages14
JournalOptics express
Volume28
Issue number25
DOIs
Publication statusPublished - 7 Dec 2020

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