Cavitation bubble evidence in BA-LIFT processes

Abstract

Blister-Actuated Laser-Induced Forward Transfer (BA-LIFT) is a modified LIFT process to avoid the direct interaction between the laser pulse and the transference fluid. In a previous study, the comparison between process images and simulation suggested the existence of a mechanically induced cavitation bubble. In this work, new images have been acquired to evaluate its appearance due to the depressurization of the fluid in the front of the polyimide blister.

Keywords

• Laser-Induced Forward Transfer (LIFT)
• Blister-Actuated Laser-Induced Forward Transfer (BA-LIFT)
• Laser process modeling
• Fluid dynamics