Subthreshold laser jetting via flow-focusing in laser-induced forward transfer

Emre Turkoz, Seungyeon Kang, Luc Deike, Craig B. Arnold

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Increasing the printing resolution of drop-on-demand printing and deposition techniques is important for many industrial applications. In this Rapid Communication, we present a technique to minimize the jet size and reduce the laser threshold energy of a variant of the laser-induced forward transfer (LIFT) process called blister-actuated LIFT. We fabricate micrometer-sized holes onto the solid polyimide thin-film substrate which hosts the donor liquid ink film to be printed. Due to the micrometer size of the holes, surface tension effects are enhanced, a meniscus is formed at the air-ink interface, and the resulting focused jets are thinner and faster than regular jets.

Original languageEnglish (US)
Article number082201
JournalPhysical Review Fluids
Volume3
Issue number8
DOIs
StatePublished - Aug 2018

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modeling and Simulation
  • Fluid Flow and Transfer Processes

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