• Rapid Communication

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

Emre Turkoz, SeungYeon Kang, Luc Deike, and Craig B. Arnold
Phys. Rev. Fluids 3, 082201(R) – Published 15 August 2018

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.

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  • Received 25 June 2018

DOI:https://doi.org/10.1103/PhysRevFluids.3.082201

©2018 American Physical Society

Physics Subject Headings (PhySH)

Fluid Dynamics

Authors & Affiliations

Emre Turkoz1, SeungYeon Kang1, Luc Deike1,2, and Craig B. Arnold1,*

  • 1Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, USA
  • 2Princeton Environmental Institute, Princeton University, Princeton, New Jersey 08544, USA

  • *cbarnold@princeton.edu

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Issue

Vol. 3, Iss. 8 — August 2018

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