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Blister-actuated laser-induced forward transfer (BA-LIFT): Understanding blister dynamics for enhanced process control.

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Title: Blister-actuated laser-induced forward transfer (BA-LIFT): Understanding blister dynamics for enhanced process control.
Authors: Moreno-Labella, J.1,2 (AUTHOR) juanjose.moreno.labella@upm.es, Candorcio-Simón, R.1 (AUTHOR) rocio.candorcio@upm.es, Munoz-Martin, D.1,3 (AUTHOR) david.munoz@upm.es, Lauzurica, S.1,2 (AUTHOR) sara.lauzurica@upm.es, Morales, M.1,2 (AUTHOR) miguel.morales@upm.es, Molpeceres, C.1 (AUTHOR) carlos.molpeceres@upm.es
Source: Optics & Laser Technology. Apr2025:Part A, Vol. 182, pN.PAG-N.PAG. 1p.
Subjects: Laser printing, Process optimization, Bioprinting, Nozzles, Computer simulation
Abstract: • BA-LIFT enables laser printing without nozzles or direct laser-material contact. • A polyimide layer is used to facilitate material transfer. • The study examines laser-induced blister dynamics in the process. • High-speed imaging captures blister evolution. • Polynomial fits support accurate simulation and process optimization. Blister-Actuated Laser-Induced Forward Transfer (BA-LIFT) stands as an innovative laser-based printing method designed to circumvent conventional nozzle-based systems and eliminate direct interactions between the laser pulse and the material to be transferred. This technique involves the interposition of a polyimide layer, strategically placed between the laser and the material. This work is aimed at understanding the critical role played by blister dynamics in the transference process, which is induced by the laser. Building upon a prior investigation where variations in laser pulse energy were explored, the current research involves the capture of high-speed imagery portraying the evolution and expansion of the blister, executed at distinct focal positions. The primary objective is to assess the blister's influence on the overall process. During the blister's expansion, our observations unveiled the presence of rapid oscillations, a consistent phenomenon observed regardless of the focal position. Consequently, we propose two polynomial fits, aimed at accurately replicating the blister's dynamic behavior. These polynomial fits serve as valuable inputs for subsequent numerical simulations in the context of BA-LIFT, allowing for enhanced process control and performance optimization. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:• BA-LIFT enables laser printing without nozzles or direct laser-material contact. • A polyimide layer is used to facilitate material transfer. • The study examines laser-induced blister dynamics in the process. • High-speed imaging captures blister evolution. • Polynomial fits support accurate simulation and process optimization. Blister-Actuated Laser-Induced Forward Transfer (BA-LIFT) stands as an innovative laser-based printing method designed to circumvent conventional nozzle-based systems and eliminate direct interactions between the laser pulse and the material to be transferred. This technique involves the interposition of a polyimide layer, strategically placed between the laser and the material. This work is aimed at understanding the critical role played by blister dynamics in the transference process, which is induced by the laser. Building upon a prior investigation where variations in laser pulse energy were explored, the current research involves the capture of high-speed imagery portraying the evolution and expansion of the blister, executed at distinct focal positions. The primary objective is to assess the blister's influence on the overall process. During the blister's expansion, our observations unveiled the presence of rapid oscillations, a consistent phenomenon observed regardless of the focal position. Consequently, we propose two polynomial fits, aimed at accurately replicating the blister's dynamic behavior. These polynomial fits serve as valuable inputs for subsequent numerical simulations in the context of BA-LIFT, allowing for enhanced process control and performance optimization. [ABSTRACT FROM AUTHOR]
ISSN:00303992
DOI:10.1016/j.optlastec.2024.112087